ඛ➃ࢿࢵࢺ࣮࣡ࢡ⎔ቃ◊✲㒊㛛$GYDQFHG1HWZRUNHG(QYLURQPHQW5HVHDUFK'LYLVLRQॿ‫ ڭ‬୩‫ޱ‬ٛ໌෦໳ελοϑ

ུྺɿ2002 ೥ 3 ݄ େࡕେ‫ڭ‬त த໺തོ

ֶ‫ֶ޻ૅج‬෦৘ใՊֶՊଔ

ུྺɿ1972 ೥ 4 ݄ ౦‫ژ‬େ‫ۀ‬ɻ2004 ೥ 3 ݄ େࡕେֶֶ޻ֶ෦ి‫ֶ޻ؾ‬Պଔ‫ۀ‬ɺେֶӃ৘ใՊֶ‫ڀݚ‬Պത࢜

1977 ೥ 3 ݄౦‫ژ‬େֶେֶӃ޻ֶ‫ڀݚܥ‬Պిࢠ޻ֶઐ໳

લ‫ظ‬՝ఔमྃɻ2008 ೥ 9 ݄େࡕେֶେֶӃ৘ใՊֶ‫ݚ‬՝ఔത࢜՝ఔमྃɻಉ೥ 4‫ڀ‬Պ৘ใωοτϫʔΫֶઐ݄ ೔ຊి৴ి࿩ެࣾʢ1985߈ത࢜‫ظޙ‬՝ఔमྃɻ2004

೥ 4 ݄ΑΓ೔ຊి৴ి࿩‫ג‬

೥ 4 ݄ େࡕେֶ 21 ੈ‫ ل‬COE ϓϩάϥϜϦαʔνΞγࣜձࣾʢNTTʣʣ෢ଂ໺ి

ελϯτɺ2007 ೥ 8 ݄ େࡕେֶάϩʔόϧ COE ϓϩ‫ؾ‬௨৴‫ॴڀݚ‬ը૾௨৴‫ڀݚ‬෦ೖࣾɻ1989 ೥ 10 ݄ NTT ৘ใ௨৴ॲཧ‫ॴڀݚ‬ը૾৘ใαʔϏε‫ڀݚ‬άϧʔϓϦʔμɺ1995 ೥ 7 ݄ NTT
ώϡʔϚϯΠϯλϑΣʔε‫ॴڀݚ‬ϝσΟΞԠ༻γεςϜ‫ڀݚ‬෦௕ɺ1999 ೥ 1 ݄ NTT Ҡಈ௨৴໢‫ࣜג‬ձࣾʢ‫ݱ‬άϥϜϦαʔνΞγελϯτΛ‫ͯܦ‬ɺ2008 ೥ 10 ݄ΑΓେࡕେֶαΠόʔϝσΟΞηϯλʔઌ୺ωοτϫʔΫ‫ڀݚڥ؀‬෦໳ॿ‫ڭ‬ɺ‫ࢸʹࡏݱ‬Δɻిࢠ৘ใ௨৴ֶձɺ
৘ใॲཧֶձɺIEEE ֤ձһɻ2008 ೥ത࢜ʢ৘ใՊֶʣɻ

NTT υίϞʣϚϧνϝσΟΞ‫ॴڀݚ‬௕Λ‫ͯܦ‬ɺ2004 ೥
4 ݄ΑΓେࡕେֶαΠόʔϝσΟΞηϯλʔઌ୺ωοτϫʔΫ‫ڀݚڥ؀‬෦໳‫ڭ‬तɺ2011 ೥ 8 ݄ΑΓαΠόʔϝσΟΞηϯλʔ௕ɺ‫ࢸʹࡏݱ‬Δɻిࢠ৘ใ௨৴ֶձɺ
ө૾৘ใϝσΟΞֶձɺը૾ిࢠֶձɺIEEE ֤ձһɻ ‫ڭ‬ҭ͓Αͼ‫ڭ‬ҭࢧԉ‫੷ۀ‬
2.1
2.1.1

त‫୲ۀ‬౰
શֶ‫ڞ‬௨‫ڭ‬ҭ‫ߏػ‬શֶ‫ڞ‬௨‫ڭ‬ҭ‫ߏػ‬৘ใॲཧ‫ڭ‬ҭՊ໨ͱͯ͠։ߨ͞Ε

1977 ೥޻ֶത࢜ɻ

͍ͯΔҎԼͷՊ໨Λ୲౰ɺ෼୲ͨ͠ɻ• ઌ୺‫ڭ‬ཆՊ໨ʮ஌΁ͷ༠͍ʯʢத໺ʣ

।‫ڭ‬त ௕୩઒߶• ৘ใࣾձͱྙཧʢத໺ʣ

ུྺɿ1995 ೥ 3 ݄ େࡕେֶ‫ֶ޻ૅج‬෦৘ใ޻ֶՊୀ

• ৘ใ୳ࡧೖ໳ʢத໺ɺ௕୩઒ɺ୩‫ޱ‬ʣֶɻ1997 ೥ 3 ݄ େࡕେֶ• ‫ૅج‬ηϛφʔʮωοτΛ஌ΓɺωοτΛ࢖͍͜ͳ͢ʯʢ௕୩઒ɺ୩‫ޱ‬ʣେֶӃ‫ڀݚֶ޻ૅج‬Պത࢜લ‫ظ‬՝ఔमྃɻ1997 ೥ 6 ݄• ‫ૅج‬ηϛφʔʮαΠόʔαΠΤϯεͷੈքʯʢ௕
୩઒ʣେࡕେֶେֶӃ‫ݚֶ޻ૅج‬‫ڀ‬Պത࢜‫ظޙ‬՝ఔୀֶɻಉ

2.1.2

೥ 7 ݄ େࡕେֶ‫ֶࡁܦ‬෦ॿ‫ֶ޻ૅج‬෦ʹ͓͍ͯ։ߨ͞Ε͍ͯΔҎԼͷՊ໨Λ୲खɻ1998 ೥ 4 ݄ େࡕେֶେֶӃ‫ڀݚֶࡁܦ‬Պॿखɻ

2000 ೥ 7 ݄ େࡕେֶαΠόʔϝσΟΞηϯλʔઌ୺‫ֶ޻ૅج‬෦౰ɺ෼୲ͨ͠ɻ

ωοτϫʔΫ‫ڀݚڥ؀‬෦໳ॿखɻ2002 ೥ 1 ݄େࡕେ• ৘ใ࿦ Bʢத໺ʣֶαΠόʔϝσΟΞηϯλʔॿ‫ڭ‬तɻେࡕେֶେֶӃ• ৘ใٕज़ऀͱࣾձʢத໺ʣ

৘ใՊֶ‫ڀݚ‬Պͷൃ଍ʹ൐͍ɺ2002 ೥ 4 ݄ΑΓɺಉ‫ݚ‬• ৘ใՊֶ‫ૅج‬ʢத໺ɺ௕୩઒ʣ

‫ڀ‬Պ݉೚ɻ‫ࢸʹࡏݱ‬Δɻిࢠ৘ใ௨৴ֶձɺ৘ใॲཧ• ৘ใωοτϫʔΫʢ௕୩઒ʣ

ֶձɺIEEE ֤ձһɻ2000 ೥ത࢜ʢ޻ֶʣɻ

• ๷ࡂಛ࿦ʢ௕୩઒ʣ
• ৘ใՊֶ PBLʢ௕୩઒ɺ୩‫ޱ‬ʣ• ‫ ֶ޻ૅج‬PBLʢ৘ใ޻ֶ Aʣʢ௕୩઒ɺ୩‫ޱ‬ʣ• ‫ ֶ޻ૅج‬PBLʢ৘ใ޻ֶ Bʣʢ௕୩઒ɺ୩‫ޱ‬ʣ• ৘ใՊֶθϛφʔϧ Aʢ௕୩઒ɺ୩‫ޱ‬ʣ

― 57 ―• ৘ใՊֶθϛφʔϧ Bʢ௕୩઒ɺ୩‫ޱ‬ʣ

ʢ2011 ೥ 8 ݄ʙ2013 ೥ 3 ݄ɺத໺ʣ

• ϓϩάϥϛϯά Aʢ୩‫ޱ‬ʣ• ࣍‫ظ‬৘ใ‫ڭ‬ҭγεςϜ‫ݕ‬౼ϫʔΩϯάʢ2012 ೥ 9݄ʙɺ୩‫ޱ‬ʣ• ৘ใՊֶ࣮‫ ݧ‬Cʢ୩‫ޱ‬ʣ
2.1.3

େֶӃ৘ใՊֶ‫ڀݚ‬Պ

2.4

େֶӃ৘ใՊֶ‫ڀݚ‬Պ৘ใωοτϫʔΫֶઐ߈ʹ͓αΠόʔϝσΟΞηϯλʔ‫ۀ‬຿ҎԼͷ‫ۀ‬຿Λ୲౰ͨ͠ɻ

͍ͯ։ߨ͞Ε͍ͯΔҎԼͷՊ໨Λ୲౰ɺ෼୲ͨ͠ɻ

• ηϯλʔ௕ʢ2011 ೥ 8 ݄ʙ2013 ೥ 3 ݄ɺத໺ʣ

• ϚϧνϝσΟΞωοτϫʔΫʢத໺ʣ• ΞϝϦΧ߹ऺࠃιϧτϨΠΫγςΟͰ։࠵͞Εͨ SC 2012 లࣔձʹ͓͍ͯαΠόʔϝσΟΞηϯ
λʔ͓Αͼઌ୺ωοτϫʔΫ‫ڀݚڥ؀‬෦໳ͷΞΫ• ৘ใωοτϫʔΫֶ‫ૅج‬࿦ʢத໺ɺ௕୩઒ʣ• ৘ใωοτϫʔΫߏ੒ֶʢத໺ɺ௕୩઒ʣ
• ΪΨϏοτωοτϫʔΫʢ௕୩઒ʣ

ςΟϏςΟʹؔ͢ΔలࣔΛߦͬͨʢ2012 ೥ 11 ݄ɺ• ৘ใωοτϫʔΫֶԋश IIʢ௕୩઒ʣ୩‫ޱ‬ʣ• ৘ใωοτϫʔΫηϛφʔ Iʢ௕୩઒ɺ୩‫ޱ‬ʣ• ৘ใωοτϫʔΫηϛφʔ IIʢ௕୩઒ɺ୩‫ޱ‬ʣ

2.5• ৘ใωοτϫʔΫֶԋश Iʢ୩‫ޱ‬ʣҎԼͷ‫ۀ‬຿Λ୲౰ͨ͠ɻ
• ࢈ֶ࿈‫ܞ‬૯߹‫ا‬ըࣨձٞҕһʢ2009 ೥ 4 ݄ʙ2013

2.1.4

େֶӃҩֶ‫ڀݚܥ‬ՊେֶӃ৘ใՊֶ‫ڀݚ‬Պ‫ۀ‬຿

೥ 3 ݄ɺத໺ʣ

େֶӃҩֶ‫ڀݚܥ‬Պʹ͓͍ͯ։ߨ͞Ε͍ͯΔҎԼͷ

2.6

Պ໨Λ୲౰ɺ෼୲ͨ͠ɻ• ྟচҩ޻ֶɾ৘ใֶʢηΩϡΞωοτɺ৘ใྙཧɺ

ҎԼͷ‫ۀ‬຿Λ୲౰ͨ͠ɻ
• ֶੜ࣮‫ͱݧ‬Γ·ͱΊʢ2012 ೥ 4 ݄ʙɺ୩‫ޱ‬ʣҩྍ৘ใηΩϡϦςΟʣʢத໺ʣ

2.2‫ֶ޻ૅج‬෦‫ۀ‬຿• ࣍‫ڭظ‬ҭ༻‫ػࢉܭ‬γεςϜ࢓༷ࡦఆҕһձҕһେֶӃ‫ڭ‬ҭ

ʢ2013 ೥ 2 ݄ʙɺ୩‫ޱ‬ʣҎԼͷ‫ۀ‬຿Λ୲౰ͨ͠ɻ

• ಸྑઌ୺Պֶٕज़େֶӃେֶɺ‫౎ژ‬େֶɺ๺཮ઌ
୺Պֶٕज़େֶӃେֶͱ‫ڞ‬ಉͰ࣮ࢪͨ͠‫ڭ‬ҭվֵϓϩδΣΫτɾઌಋత IT εϖγϟϦετҭ੒ਪਐϓϩάϥϜʢIT-KEYSʣͷӡӦҕһձҕһΛ୲౰ͨ͠ɻʢ2007 ೥ 10 ݄ʙ2013 ೥ 3 ݄ɺத໺ʣ

2.3

 ‫֓ڀݚ‬ཁຊ෦໳Ͱ͸ɺϢϏΩλεωοτϫʔΫͷߏஙʹ޲͚ͨ௨৴‫ج‬൫ɾԠ༻ʹؔ͢Δ‫ڀݚ‬Λߦ͍ͬͯΔɻ۩ମతʹ͸ɺ਺ֶతղੳɺγϛϡϨʔγϣϯɺ࣮‫Ͳͳݧ࣮ػ‬Λ௨ͯ͡ɺ(1) ‫ڥ؀‬தʹวࡏ͢ΔϢϏΩλεϊʔυ͔Βશֶࢧԉ‫ۀ‬຿ͷߴ଎ͳσʔλऩूํࣜɺ԰಺֎ʹ͓͚ΔϊʔυͷҠશֶࢧԉ‫ۀ‬຿ͱͯ͠ҎԼΛ୲౰ͨ͠ɻ

• ODINS ӡ༻෦ձٞ௕ʢ2008 ೥ 4 ݄ʙ2013 ೥ 3 ݄ɺத໺ʣಈϞσϧߏஙͱͦͷԠ༻ɺແઢϝογϡωοτϫʔΫ੍‫ޚ‬ɺ(2) Πϯλʔωοτʹ͓͍༷ͯʑͳτϥώοΫΛ
ߴ଎͔ͭޮΑ͘సૹ͢ΔͨΊͷτϥϯεϙʔτΞʔΩ

• ODINS ‫ٸۓ‬ରԠ૊৫ʢODINS-CERTʣͷٞ௕‫ٴ‬ςΫνϟɺϒϥοΫϘοΫεͰ͋Δ IP ωοτϫʔΫͷͼ‫ͯ͠ͱࣄװ‬ωοτϫʔΫӡӦʹؔ͢Δ࿈བྷɺ؅ࢿ‫ྔݯ‬Λ໌Β͔ʹ͢ΔωοτϫʔΫ‫ܭ‬ଌٕज़ɺSkypeཧɺ‫ٸۓ‬ରԠ‫ۀ‬຿Λߦͬͨɻ
ʢ2005 ೥ 4 ݄ʙɺதͳͲΛ࣮‫͍ͯ͠ݱ‬ΔΦʔόϨΠωοτϫʔΫٕज़ͷߴ໺ɺ௕୩઒ʣ

౓ԽɺͳͲʹऔΓ૊ΜͰ͍Δɻ• ‫ڭ‬ҭ৘ใ୲౰࠙ஊձҕһʢ2012 ೥ 4 ݄ʙ2013 ೥
3 ݄ɺத໺ʣ• ֶज़‫ߏػڀݚ‬ձٞҕһʢ2011 ೥ 8 ݄ʙ2013 ೥ 3
݄ɺத໺ʣ



 ೥౓‫੷ۀڀݚ‬4.1

ແઢϝογϡωοτϫʔΫʹؔ͢Δ‫ڀݚ‬• ৘ใ‫ا‬ըࣨձٞҕһʢ2012 ೥ 4 ݄ʙ2013 ೥ 3 ݄ɺࢁؒ෦΍཭ౡͳͲɺ༗ઢωοτϫʔΫͷෑઃ͕ࠔ೉
ͳ஍Ҭʹ͓͍ͯແઢ઀ଓ‫ڥ؀‬Λఏ‫͢ڙ‬Δ͜ͱͷͰ͖Δத໺ʣ• ‫ڭ‬ҭ৘ใԽϫʔΩϯάٞ௕ʢ2011 ೥ 8 ݄ʙ2013ແઢϝογϡωοτϫʔΫ͸ɺ‫ࡁܦ‬ੑɺ֦ுੑʹ༏Ε
Δ͜ͱ͔Βɺେ͖ͳ஫໨ΛूΊ͍ͯΔɻແઢϝογϡ೥ 3 ݄ɺத໺ʣ• ϑΝΧϧςΟσϕϩοϓϝϯτ‫ݕ‬౼ϫʔΩϯάωοτϫʔΫ͸ɺ༗ઢωοτϫʔΫ΁ͷ઀ଓ‫ػ‬ೳΛ࣋ͭήʔτ΢ΣΠϊʔυͱෳ਺ͷϝογϡϊʔυ͕ແઢ― 58 ―

ͰϚϧνϗοϓ઀ଓ͞ΕΔ͜ͱʹΑΓߏ੒͞ΕΔɻར

[ؔ࿈ൃද࿦จ]༻ऀ୺຤͸ۙྡͷϝογϡϊʔυΛհͯ͠ωοτϫʔΫʹ઀ଓ͢ΔɻಛʹແઢϝογϡωοτϫʔΫͷ͏ͪɺ• ๺ࢁஐ໵, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔϘτϧωο

ήʔτ΢ΣΠΛࠜͱ͢ΔπϦʔঢ়ͷτϙϩδΛߏங͢ΫղফͷͨΊͷλΠϜεϩοτ௥Ճख๏ͷఏҊͱΔ΋ͷΛϦϨʔωοτϫʔΫͱ͍͏ɻຊ‫Ͱڀݚ‬͸ɺແධՁ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (NS2012-ઢϝογϡωοτϫʔΫɺಛʹ IEEE 802.16j Ϛϧνϗο

88), vol. 112, no. 231, pp. 47–52, ‫౎ژ‬େֶ, ‫౎ژ‬,ϓϦϨʔωοτϫʔΫΛର৅ͱͯ͠ɺͦͷੑೳΛվળOct. 2012. (ϙελʔߨԋ)͢ΔͨΊͷख๏͓ΑͼੑೳධՁʹऔΓ૊ΜͰ͍Δɻ

4.1.1• Tomoya Kitayama, Go Hasegawa, Yoshiaki Taniguchi and Hirotaka Nakano, “Time slot-adding algorithm for improving bottleneck link throughput inτϥώοΫෛՙʹԠͨ͡λΠϜεϩοτׂ౰վળʹؔ͢Δ‫ڀݚ‬IEEE 802.16j relay networks,” in Proceedings ofthe 27th International Conference on Information
Networking (ICOIN 2013), pp. 606–611, Bangkok,

IEEE 802.16j ϦϨʔωοτϫʔΫ͸ɺϚϧνϗοϓ
ແઢ௨৴ʹΑΔߴ଎Ͱ޿ҬͷແઢϒϩʔυόϯυαʔϏεΛఏ‫͢ڙ‬ΔɻϦϨʔωοτϫʔΫ͸ɺ௨৴ํࣜͱ

Thailand, Jan. 2013.

ͯ͠ TDMA ํࣜΛ࠾༻͓ͯ͠ΓɺωοτϫʔΫ಺ͷϦ• Tomoya Kitayama, “Time slot assignment algorithmϯΫʹ͸௨৴‫ػ‬ձͰ͋ΔλΠϜεϩοτׂ͕Γ౰ͯΒ

in IEEE 802.16j relay networks considering traf¿c demand and link transmission quality,” Master’sΕΔɻ͜͜ͰɺϦϯΫͷ఻ૹ඼࣭͸ɺׂΓ౰ͯΒΕͨλΠϜεϩοτͱಉ͡λΠϜεϩοτΛ༻͍ͯ௨৴Λ

Thesis, Graduate School of Information Science andTechnology, Osaka University, Feb. 2013.

ߦ͏ϦϨʔϊʔυͷి೾‫ʹ౓ڧ‬େ͖͘Ө‫ڹ‬Λड͚Δɻ͞ΒʹɺదԠมௐූ߸ԽํࣜΛ༻͍ͨ৔߹ɺϦϯΫͷ• ๺ࢁஐ໵, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔτϥώοΫ
ෛՙʹԠͨ͡λΠϜεϩοτׂ౰ͷվળख๏,”఻ૹ඼࣭ʹԠͯ͡ɺׂΓ౰ͯΒΕͨλΠϜεϩοτʹ
͓͚Δσʔλ఻ૹྔ͕ܾఆ͞ΕΔɻͦͷͨΊɺϦϯΫͷ఻ૹ඼࣭Λߟྀͯ͠λΠϜεϩοτׂΓ౰ͯΛߦ͏͓͍ͯɺτϥώοΫෛՙʹରͯ͠σʔλ఻ૹྔͷաෆిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (NS2012-167),
vol. 112, no. 464, pp. 13–18, ࢒೾ິϩΠϠϧϗς

଍͕͋ΔϦϯΫ͕ൃੜ͢ΔͨΊɺτϥώοΫෛՙͱϦϧ, ԭೄ, Mar. 2013.

͜ͱ͕ॏཁͰ͋Δɻ·ͨɺλΠϜεϩοτׂΓ౰ͯʹϯΫ఻ૹ඼࣭Λߟྀͯ͠λΠϜεϩοτΛׂΓ౰ͯΔ
ඞཁ͕͋Δɻ͔͠͠ͳ͕Βɺ‫ط‬ଘͷ‫͍͓ͯʹڀݚ‬͸ɺ

4.1.2

Ө‫ؔ͢ʹڹ‬Δ‫ڀݚ‬τϥώοΫཁ‫ͱྔٻ‬ϦϯΫ఻ૹ඼࣭Λ‫ྀͨ͠ߟʹڞ‬΋ͷ͸ଘࡏ͠ͳ͍ɻ
ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺIEEE 802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔτϥώοΫෛՙʹԠͨ͡λΠϜεϩοτׂ౰ͷվળख๏ΛఏҊ͢ΔɻఏҊख๏Ͱ͸ɺϦϯΫʹׂΓ౰ͯΒΕͨλΠϜεϩοτ਺Λௐ੔͠ɺϦϯΫͷτ
ϥώοΫෛՙʹԠͯ͡σʔλ఻ૹྔΛ֬อ͢Δ͜ͱʹΑΓɺϦϨʔωοτϫʔΫͷੑೳվળΛߦ͏ɻੑೳධ
Ձͷ݁ՌɺఏҊख๏Λ༻͍Δ͜ͱͰσʔλసૹεϧʔϓοτ͕࠷େ໿ 500%վળ͢Δ͜ͱΛࣔ͢ɻ·ͨɺఏҊख๏͸ɺλΠϜεϩοτׂ౰ͷ࠷దղͷ໿ 94%ͷੑೳΛಘΔ͜ͱΛࣔ͢ɻి೾‫ׯ‬বਪఆํ͕ࣜωοτϫʔΫੑೳʹ༩͑Δ

IEEE 802.16j ϚϧνϗοϓϦϨʔωοϫʔΫʹ͓͚ΔλΠϜεϩοτׂΓ౰ͯͰ͸ɺి೾ࢿ‫ݯ‬ͷۭؒత࠶ར༻ͷͨΊʹɺϦϯΫؒͷ‫ׯ‬বؔ܎Λਪఆ͢Δඞཁ
͕͋Δɻଟ͘ͷ‫Ͱڀݚ‬͸ɺϦϯΫؒͷ‫ׯ‬বؔ܎Λਪఆ
͢Δࡍʹɺτϙϩδ৘ใʹ‫ׯ͍ͨͮج‬বਪఆํ͕ࣜ༻
͍ΒΕΔɻ͔͠͠ɺͦΕΒͷํࣜ͸‫ׯ‬বΛೋ஋తʹ൑அ͓ͯ͠Γɺ‫ׯ‬বʹΑΔ௨৴඼࣭ͷมԽΛߟྀ͍ͯ͠
ͳ͍ɻ͞Βʹɺ҆ఆ͔ͭޮՌతͳ௨৴Λߦ͏ͨΊʹɺ

IEEE 802.16j ϚϧνϗοϓϦϨʔωοτϫʔΫͰ͸దԠมௐූ߸Խ͕༻͍ΒΕ͍ͯΔɻͦͷͨΊɺ༻͍Δ‫ׯ‬বਪఆํࣜͱి೾఻ൖϞσϧʹΑͬͯɺωοτϫʔΫੑೳ͕มԽ͢Δͱߟ͑ΒΕΔɻ͔͠͠ɺIEEE 802.16jϦϨʔωοτϫʔΫͷλΠϜεϩοτׂΓ౰ͯΞϧΰϦζϜͷ‫Ͱڀݚ‬͸ɺ͜ΕΒΛৄࡉʹධՁͨ͠΋ͷ͸͜
Ε·ͰߦΘΕͯͳ͍ɻຊ‫Ͱڀݚ‬͸ɺి೾఻ൖϞσϧͱదԠมௐූ߸ԽΛߟྀͨ͠͏͑Ͱɺ༷ʑͳ‫ׯ‬বਪఆํࣜʹ‫ͮ͘ج‬λΠϜεϩοτׂΓ౰ͯख๏ͷੑೳධՁΛߦ͏ɻి೾఻ൖϞσਤ 1: λΠϜεϩοτͷௐ੔ϧ͸௚ࢹ‫ͱڥ؀‬ඇ௚ࢹ‫ڥ؀‬Λ૝ఆ͠ɺͦΕͧΕ‫ݮ‬ਰಛੑΛมԽͤ͞Δɻຊ‫Ͱڀݚ‬ධՁ͢ΔλΠϜεϩοτ
ׂΓ౰ͯΞϧΰϦζϜ͸ɺ৴߸ର‫ׯ‬বൺΛߟྀ͢Δ΋― 59 ―

‫Ͱڀݚ‬͸ɺదԠมௐූ߸ԽʹΑΔ఻ૹྔͷมԽΛߟྀon the Performance Analysis and Enhancement ofWireless Networks (IEEE PAEWN 2013), Barcelona,ͨ͠λΠϜεϩοτׂΓ౰ͯΛߦ͏ɻධՁͷ݁Ռɺ‫ׯ‬

Spain, Mar. 2013.

ͷͱߟྀ͠ͳ͍΋ͷͷࡾछྨͣͭͱ͢Δɻ͞Βʹɺຊবਪఆํࣜͷ‫ׯ‬বൣғΛܾఆ͢Δύϥϝʔλ͕ωοτϫʔΫੑೳʹӨ‫ڹ‬Λ༩͑Δ͜ͱ͕෼͔ͬͨɻ·ͨɺτϙϩδ৘ใΛ༻͍ͨ؆୯ͳ‫ׯ‬বਪఆํࣜͰ͋ͬͯ΋ɺి೾఻ൖϞσϧͱ‫ݮ‬ਰಛੑʹԠͯ͡‫ׯ‬বਪఆํࣜͷύϥϝʔλΛௐ੔͢Δ͜ͱͰɺ৴߸ର‫ׯ‬বൺΛߟྀͨ͠ෳࡶͳ‫ׯ‬বਪఆํࣜͱಉఔ౓ͷωοτϫʔΫੑೳ͕ಘΒΕΔ͜ͱΛࣔ͢ɻ

4.1.3

ి೾‫ׯ‬বʹΑΔ఻ૹྔมಈΛߟྀͨ͠λΠϜεϩοτׂ౰ʹؔ͢Δ‫ڀݚ‬IEEE 802.16j ϦϨʔωοτϫʔΫͰ͸ɺ࣌෼ׂํࣜ
ʹΑΔແઢ௨৴͕ߦΘΕΔɻ͜ͷ࣌ɺదԠมௐූ߸ԽΛద༻͢Δ͜ͱʹΑͬͯɺϦϯΫׂ͕Γ౰ͯΒΕͨλΠϜεϩοτʹ͓͍ͯɺແઢͷ఻ૹ඼࣭ʹԠͨ͡఻ૹ
ྔΛಘΔ͜ͱ͕Ͱ͖ΔɻλΠϜεϩοτΛগ਺ͷϦϯΫ͕༻͍Δͱɺ௨৴࣌ͷ‫ׯ‬ব͕খ͍ͨ͞Ίେ͖ͳ఻ૹ
ྔ͕ಘΒΕΔɻ͔͠͠ɺͦΕ͸ಉ࣌ʹແઢωοτϫʔΫࢿ‫ݯ‬ͷۭؒత࠶ར༻ੑ͕௿͍͜ͱΛҙຯ͠ɺωοτϫʔΫ಺ͷશͯͷϦϯΫ͕௨৴Λߦ͏ͨΊʹඞཁͳϑϨʔϜαΠζ͕૿େ͢ΔɻͦͷͨΊɺ֤ϦϯΫ͕ඞཁͳ͚ͩͷ௨৴ΛՄೳͱ͠ɺ͔ͭɺϑϨʔϜαΠζ͕
খ͘͞ͳΔΑ͏ʹλΠϜεϩοτͷׂ౰Λߦ͏ඞཁ͕
͋Δɻͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺIEEE 802.16j ϦϨʔωοτϫʔΫʹ͓͍ͯదԠมௐූ߸ԽͷӨ‫ڹ‬Λߟྀͨ͠৽ͨ
ͳλΠϜεϩοτׂ౰ख๏ΛఏҊ͢Δɻ۩ମతʹ͸ɺωοτϫʔΫ಺ͷ֤ϦϯΫ͕༻͍ΔλΠϜεϩοτΛ
ॱܾ࣍ఆ͢Δख๏ɺ‫ͼٴ‬ɺ֤λΠϜεϩοτΛ༻͍Δ
ϦϯΫू߹Λॱܾ࣍ఆ͢Δख๏ɺͷ 2 ͭΛఏҊ͢Δɻਤ 2: ‫ׯ‬বਪఆํࣜͷӨ‫ڹ‬ఏҊख๏ͷੑೳධՁ͸γϛϡϨʔγϣϯʹΑͬͯߦ͍ɺ
ಛʹ‫ऀޙ‬ͷख๏͕ϑϨʔϜαΠζ࡟‫ʹݮ‬༗ޮͰ͋Δ͜ͱΛࣔ͢ɻ[ؔ࿈ൃද࿦จ]• ࡾࠜྔี, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚Δ༷ʑͳి೾
‫ׯ‬বϞσϧʹ‫ͮ͘ج‬λΠϜεϩοτׂ౰ख๏ͷੑೳධՁ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (CQ2012-48), vol. 112, no. 218, pp. 37–42, ‫ُؙ‬ொϨοπϗʔϧ, ߳઒, Sep. 2012.
• Ryosuke Mine, “Effect of radio interference estimation methods for time slot assignment on perfor-ਤ 3: ख๏ʹΑΔϑϨʔϜαΠζͷҧ͍

mance of IEEE 802.11j relay networks,” Master’s
Thesis, Graduate School of Information Science and[ؔ࿈ൃද࿦จ]Technology, Osaka University, Feb. 2013.

• ߴ໦঵Ұ, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE• ࡾࠜྔี, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “‫ׯ‬বਪ

802.16j ϦϨʔωοτϫʔΫʹ͓͚Δి೾‫ׯ‬বʹΑΔ఻ૹྔมಈΛߟྀͨ͠λΠϜεϩοτׂ౰ख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (NS2012-89),ఆํ͕ࣜ IEEE 802.16j ϦϨʔωοτϫʔΫͷੑೳʹ༩͑ΔӨ‫ڹ‬,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ(NS2012-224), vol. 112, no. 464, pp. 343–348, ࢒೾

vol. 112, no. 231, pp. 53–58, ‫౎ژ‬େֶ, ‫౎ژ‬, Oct.
2012. (ϙελʔߨԋ)ິϩΠϠϧϗςϧ, ԭೄ, Mar. 2013.

• Ryosuke Mine, Go Hasegawa, Yoshiaki Taniguchi
and Hirotaka Nakano, “Effect of radio interference
models on the performance of time slot assignment
algorithms in IEEE 802.16j relay networks,” in Proceedings of the 8th IEEE International Workshop

4.1.4దԠมௐූ߸ԽΛߟྀͨ͠λΠϜεϩοτ֬อʹؔ͢Δ‫ڀݚ‬IEEE 802.16j ϚϧνϗοϓϦϨʔωοτϫʔΫ͸ɺήʔτ΢ΣΠϊʔυ͓ΑͼϦϨʔϊʔυ͕ແઢ઀ଓ

― 60 ―

ʹΑͬͯπϦʔঢ়ͷωοτϫʔΫΛߏங͢Δ͜ͱͰɺϦϯΫͷ௨৴඼࣭ʹର͢Δ৚݅Λௐ੔͢Δ͜ͱʹΑͬ޿ൣғͰͷωοτϫʔΫ઀ଓαʔϏεΛՄೳͱ͢Δɻ

ͯɺτϥώοΫཁ‫ʹྔٻ‬Ԡͨ͡λΠϜεϩοτΛ֤ϦϢʔβ୺຤͸௨৴ΤϦΞ಺ʹଘࡏ͢ΔϦϨʔϊʔυʹϯΫʹ༩͑ͭͭɺϑϨʔϜαΠζΛখ͘͞ҡ࣋Ͱ͖Δ

઀ଓ͞ΕɺϚϧνϗοϓ௨৴Λߦ͍ήʔτ΢ΣΠϊʔ͜ͱ͕Θ͔ͬͨɻ

υͱ௨৴Λߦ͏͜ͱͰɺ֎෦ωοτϫʔΫʹ౸ୡ͢Δ
͜ͱ͕Ͱ͖ΔɻIEEE 802.16j ‫͍͓ͯʹ֨ن‬͸ɺి೾‫ׯ‬বΛආ͚ΔͨΊʹɺϊʔυؒͷϦϯΫʹରͯ͠௨৴‫ػ‬ձͰ͋ΔλΠϜεϩοτΛׂΓ౰ͯΔ࣌෼ׂଟॏΞΫηε (TimeDivision Multiplexing Access: TDMA) ํ͕ࣜ༻͍ΒΕ͍ͯΔɻϦϯΫ͸ׂΓ౰ͯΒΕͨλΠϜεϩοτͰͷΈ௨৴Λߦ͏͜ͱ͕Ͱ͖ΔͨΊɺಉ࣌ʹ௨
৴͢Δͱి೾‫ׯ‬ব͕ൃੜ͢Δෳ਺ͷϦϯΫʹҟͳΔλΠϜεϩοτΛׂΓ౰ͯΔ͜ͱͰɺి೾‫ׯ‬বΛආ͚Δ͜ͱ͕Ͱ͖Δɻਤ 4: ϑϨʔϜαΠζͷ෼෍ҰํɺແઢϦϯΫͷූ߸Խʹɺ௨৴඼࣭ʹԠͯ͡఻ૹ଎౓ΛมԽͤ͞ΔదԠมௐූ߸ԽΛ༻͍Δ৔߹ɺಉ͡λΠϜεϩοτׂ͕Γ౰ͯΒΕ͍ͯΔϦϯΫ͕ಉ࣌ʹ௨৴Λߦ͏͜ͱʹΑΓɺ௨৴඼࣭͕௿Լ͢ΔͱɺϦ

4.1.5

Ϣʔβ୺຤ऩ༰ͷͨΊͷλΠϜεϩοτׂΓ౰ͯͷ‫ڀݚ‬

ϯΫͷ఻ૹ଎౓͕௿Լ͢Δɻ͜ͷͱ͖ɺϦϯΫʹ͔͔ΔτϥώοΫෛՙΛॲཧ͢ΔͨΊʹे෼ͳ఻ૹ଎౓ΛIEEE 802:16j ϚϧνϗοϓϦϨʔωοτϫʔΫ͸ɺ֬อ͢ΔͨΊʹ͸ɺϦϯΫʹׂΓ౰ͯΔλΠϜεϩο

ϦϨʔϊʔυ͕͓‫ʹ͍ޓ‬ແઢ઀ଓ͠πϦʔঢ়ͷωοττ਺Λ૿Ճ͢Δ͜ͱ͕༗ޮͰ͋Δͱߟ͑ΒΕΔ͕ɺಉϫʔΫΛߏங͢Δ͜ͱͰɺωοτϫʔΫ઀ଓαʔϏε࣌ʹϑϨʔϜαΠζͷ૿େΛҾ͖‫ͨ͢͜ى‬ΊɺϦϯΫൣғͷ༰қͳ֦ுΛՄೳͱ͢ΔɻϦϨʔωοτϫʔΫͷ୯Ґ࣌ؒ͋ͨΓͷ఻ૹྔ͕ޮՌతʹ૿Ճ͠ͳ͍͜ͱʹ઀ଓ͢ΔϢʔβ୺຤ʹ֎෦ωοτϫʔΫ΁ͷΞΫη

͕ߟ͑ΒΕΔɻIEEE 802.16j ωοτϫʔΫͷλΠϜε

ε‫ڥ؀‬Λఏ‫͢ڙ‬Δࡍʹ͸ɺ 1 ͭ͋Δ͍͸ෳ਺ͷϦϨʔϩοτׂΓ౰ͯʹؔ͢Δ‫ط‬ଘ‫ڀݚ‬ͷଟ͘͸ɺϦϯΫͷϊʔυ͕ήʔτ΢ΣΠϊʔυͱͳΓɺ֎෦ωοτϫʔ‫ׯ‬বؔ܎Λ؆қͳϞσϧʹ‫͍ͯج‬औΓѻ͍ͬͯΔͨΊɺΫͱ઀ଓ͞ΕΔɻIEEE 802:16j Ͱ͸ແઢ௨৴ํࣜͱ͠

͜ͷΑ͏ͳి೾‫ׯ‬বͱ఻ૹ଎౓ͷؔ܎Λߟྀ͢Δ͜ͱ

ͯ࣌෼ׂଟ‫઀ݩ‬ଓํ͕ࣜ༻͍ΒΕɺωοτϫʔΫ಺ͷ͕Ͱ͖ͳ͍ɻ͕ͨͬͯ͠ɺΑΓਖ਼֬ͳ‫ׯ‬বؔ܎Λ೺ѲϦϯΫʹ௨৴‫ػ‬ձͰ͋ΔλΠϜεϩοτׂ͕Γ౰ͯΒ͠ɺ఻ૹ଎౓ͱͷؔ܎ΛධՁͰ͖ΔΑ͏ͳϞσϧΛલΕΔɻఏͱͨ͠ɺλΠϜεϩοτׂΓ౰ͯख๏͕‫ٻ‬ΊΒΕΔɻIEEE 802:16j ʹ͓͍ͯ͸ɺϦϨʔϊʔυͱϢʔβ୺ຊ‫Ͱڀݚ‬͸ɺΑΓ‫ڥ؀͍ۙʹ࣮ݱ‬Λ૝ఆͨ͠ϦϯΫ຤ͷແઢ௨৴ʹׂΓ౰ͯΒΕΔप೾਺ଳҬ͸ϦϨʔͷ‫ׯ‬বؔ܎Λܾఆ͢Δ͜ͱ͕Ͱ͖ΔϨΠϦʔϑΣʔδϊʔυؒͷແઢ௨৴ʹׂΓ౰ͯΒΕΔप೾਺ଳҬͱ͸ϯά‫ڥ؀‬Λલఏͱͨ͠ɺλΠϜεϩοτׂΓ౰ͯख๏ҟͳΔɻͦͷͨΊɺIEEE802.16j ϦϨʔωοτϫʔΫΛఏҊͨ͠ɻఏҊख๏Ͱ͸ɺϨΠϦʔϑΣʔδϯά‫؀‬ʹ͓͚ΔλΠϜεϩοτׂΓ౰ͯʹؔ͢Δ‫ط‬ଘ‫ڀݚ‬ͷ‫͚͓ʹڥ‬ΔϦϯΫͷಈతͳ‫ׯ‬বؔ܎ͷมԽΛߟྀͨ͠΄ͱΜͲ͸ɺϦϨʔϊʔυ΁ͷϢʔβ୺຤ͷऩ༰ʹͭλΠϜεϩοτׂΓ౰ͯΛߦ͏ɻ۩ମతʹ͸ɺϦϯΫ͍ͯ͸ߟྀͤͣɺϦϨʔϊʔυ‫ͼٴ‬ήʔτ΢ΣΠϊʔ΁ͷλΠϜεϩοτׂΓ౰ͯͷաఔʹ͓͍ 1 ͯɺෳυؒͷϦϯΫͷΈΛର৅ͱ͍ͯ͠ΔɻϢʔβ୺຤ͱϦ਺ϦϯΫͷಉ࣌௨৴ΑΔ௨৴඼࣭ͷ௿ԼΛϞσϧΛ༻Ϩʔϊʔυͷ௨৴͸ 1 ຊͷແઢϦϯΫΛ༻͍ͯߦΘ͍ͯਪఆ͠ɺϦϯΫͷτϥώοΫཁ‫ʹྔٻ‬Ԡͨ͡఻ૹ

ΕΔͨΊɺ 1 ୆ͷϦϨʔϊʔυʹ઀ଓ͞Ε͍ͯΔϢʔ଎౓Λ֬อͰ͖ͳ͍৔߹ʹ͸ɺϦϯΫ΁ׂΓ౰ͯΔλβ୺຤͸‫ݸ‬ผͷλΠϜεϩοτΛ༻͍ͯ௨৴Λߦ͏͜ΠϜεϩοτ਺Λ૿Ճ͢Δɻ͜ΕʹΑΓɺશͯͷϦϯͱ͕૝ఆ͞Ε͍ͯΔɻ͔͠͠ɺۙ઀͍ͯ͠Δ͕ऩ༰͞Ϋ͕ɺτϥώοΫཁ‫ʹྔٻ‬Ԡͨ͡఻ૹ଎౓Λ֬อͰ͖Ε͍ͯΔϦϨʔϊʔυ͕ҟͳΔෳ਺ͷϢʔβ୺຤͕ΔΑ͏ͳλΠϜεϩοτׂΓ౰ͯΛߦ͏ɻఏҊख๏ͷಉ࣌ʹ௨৴Λߦ͏ͱɺऩ༰͞Ε͍ͯΔϦϨʔϊʔυ͕ੑೳධՁ͸ɺશͯͷϦϯΫ΁ׂΓ౰ͯͨλΠϜεϩο

ҟͳΔʹ΋͔͔ΘΒͣɺి೾‫ׯ‬ব͕ൃੜ͢Δ͜ͱ͕ߟτ૯਺ɺ͢ͳΘͪϑϨʔϜαΠζΛධՁࢦඪͱͨ͠γ͑ΒΕΔɻ͜ͷ໰୊Λආ͚ΔͨΊʹɺྡ઀͢ΔϦϨʔϛϡϨʔγϣϯʹΑͬͯߦͬͨɻಛʹɺ௨৴඼࣭ʹؔϊʔυؒͰҟͳΔप೾਺ଳҬΛ༻͍Δ͜ͱ͕ߟ͑ΒΕ

͢Δ৚݅ͱɺλΠϜεϩοτׂΓ౰ͯͷ݁ՌͰ͋Δϑ

Δ͕ɺͦͷ৔߹ɺి೾ࢿ‫ݯ‬ͷར༻ޮ཰͕௿Լ͠ɺωοϨʔϜαΠζͷؔ܎ΛఆྔతʹධՁͨ͠ɻͦͷ݁ՌɺτϫʔΫੑೳ͕ྼԽ͢Δɻ͕ͨͬͯ͠ɺϦϨʔωοτ― 61 ―

ϫʔΫશମͷి೾ར༻ޮ཰ΛߴΊΔͨΊʹ͸ɺྡ઀͢

4.2.1

ΔϦϨʔϊʔυʹಉҰͷप೾਺ଳҬΛׂΓ౰ͯɺి೾

‫ڀݚ‬‫ׯ‬বΛߟྀͯ͠λΠϜεϩοτΛׂΓ౰ͯΔ͜ͱ͕‫ٻ‬ΊΒΕΔɻಈը૾தͷԾ૝ήʔτ௨աਓ਺ਪఆʹؔ͢Δ

Ӻ΍ۭߓͳͲͷࢪઃʹ͓͚Δ҆શ؅ཧɺಓ࿏ͷަ௨੔ཧͳͲͷͨΊͷ‫ۀࢹ؂‬຿ɺ·ͨΠϕϯτձ৔΍֗಄ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺಉҰͷप೾਺ଳҬׂ͕Γ౰ͯΒͰͷ௨ߦਓ਺ͷௐࠪͳͲΛ໨తͱͨ͠ɺਓྲྀ΍௨ߦਓΕͨۙ઀͢Δෳ਺ͷϦϨʔϊʔυͱͦΕΒʹऩ༰͞਺ͷ‫؍‬ଌ͸ɺ໨ࢹɺ͋Δ͍͸ηϯα΍Χϝϥө૾ΛརΕΔϢʔβ୺຤ͷϦϯΫؒ΁ͷλΠϜεϩοτׂΓ౰༻͢Δ͜ͱʹΑͬͯࣗಈͰߦΘΕ͍ͯΔɻ໨ࢹʹΑΔ

ͯख๏ͷఏҊͱੑೳධՁΛߦ͏ɻ۩ମతʹ͸ɺϦϯΫ௨ߦਓ਺‫ܭ‬ଌ͸ɺਓһίετ͕͔͔Δ͜ͱɺࠞࡶঢ়‫گ‬ؒͷ‫ׯ‬বؔ܎ΛৄࡉʹධՁ͢Δ͜ͱ͕Ͱ͖ΔϨΠϦʔԼʹ͓͚Δਖ਼֬ͳ௨ߦਓ਺‫ܭ‬ଌ͕ࠔ೉Ͱ͋Δ͜ͱ౳ͷϑΣʔδϯά‫ڥ؀‬Λલఏͱ͠ɺ఻ૹ඼࣭ʹԠͯ͡఻ૹ

໰୊Λ࣋ͭͨΊɺࣗಈͰ௨ߦਓ਺‫ܭ‬ଌΛߦ͏ٕज़͕஫

ྔ͕มಈ͢ΔదԠมௐූ߸ԽΛߟྀͨ͠λΠϜεϩο

໨ΛूΊ͍ͯΔɻಛʹΧϝϥө૾Λ༻͍ͨ௨ߦਓ਺‫ܭ‬τׂΓ౰ͯख๏ΛఏҊ͢ΔɻγϛϡϨʔγϣϯʹΑΔ

ଌख๏͸Χϝϥͷઃஔ৚݅ͷࣗ༝౓͕ηϯαʹൺ΂ͯੑೳධՁͷ݁ՌɺҰఆͷ఻ૹ඼࣭Λ֬อ্ͨ͠Ͱɺి

ߴ͘ɺ‫ܭ‬ଌ৔ॴ͔Β཭Εͨ৔ॴ͔ΒͰ΋ࡱӨ͕ՄೳͰ೾ࢿ‫ݯ‬ͷۭؒత࠶ར༻Λߦ͏͜ͱͰɺϦϨʔϊʔυ 1

͋Δར఺͕͋ΔɻΧϝϥө૾Λར༻ͨࣗ͠ಈ௨ߦਓ਺

୆͋ͨΓɺ͔ͭ୯Ґ࣌ؒ͋ͨΓͷฏ‫ྔૹ఻ۉ‬Λ࠷େͰ‫ܭ‬ଌγεςϜ͸ɺར༻໨తʹԠͯ͡ɺࡱӨྖҬશମͷ

໿ 12% վળͰ͖Δ͜ͱΛࣔ͢ɻ·ͨɺϦϨʔϊʔυ௨ߦਓΛ‫ܭ‬ଌ͢Δ΋ͷͱɺ‫ݐ‬෺΍ΤϨϕʔλͷೖ‫ޱ‬ɺ‫ͼٴ‬Ϣʔβ୺຤ͷ෼෍ͱͯ͠ಉҰωοτϫʔΫτϙϩΤεΧϨʔλͳͲɺࡱӨྖҬதͷࢦఆͨ͠஍఺Λ௨աδͷ‫܁‬Γฦ͠ߏ଄Λ༻͍ͨධՁํ๏Λಋೖ͠ɺେ‫ن‬໛ͨ͠௨ߦਓ਺Λ‫ܭ‬ଌ͢Δ΋ͷʹ෼͚ΒΕΔɻ͍ͣΕͷϦϨʔωοτϫʔΫ‫ڥ؀‬ͷධՁΛ؆қʹߦ͏͜ͱ͕Ͱ

ࣗಈ௨ߦਓ਺‫ܭ‬ଌγεςϜʹ͓͍ͯ΋ɺଟ͘ͷ௨ߦਓ

͖Δ͜ͱΛࣔ͢ɻ

͕ߦ͖ަ͏ࠞࡶঢ়‫گ‬Լʹ͓͚Δ‫ܭ‬ଌਫ਼౓޲্͕େ͖ͳ
՝୊ͱͳ͍ͬͯΔɻզʑͷ‫ڀݚ‬άϧʔϓͰ͸ɺΧϝϥͰࡱӨͨ͠ྖҬ಺ͷ௨ߦਓ਺Λɺಈը૾தͷΦϒδΣΫτͷҠಈϕΫτϧΛද͢ΦϓςΟΧϧϑϩʔʹ‫͖ͮج‬ɺ࣮࣌ؒͰਪఆ
͢Δख๏Λ‫ݕ‬౼͍ͯ͠Δɻຊख๏Ͱ͸ɺநग़ͨ͠ΦϓςΟΧϧϑϩʔΛ௕͞΍֯౓ɺ࢝఺Ґஔ౳Λ‫ج‬४ʹΫϥελԽ͠ɺࣄલֶशʹ‫ͮ͘ج‬౷‫ܭ‬৘ใ͔Βಈը૾ϑϨʔϜຖͷ௨ߦਓ਺Λਪఆ͢ΔɻධՁͷ݁ՌɺΦϓςΟΧϧϑϩʔΛඍখͳ͖͍͠஋ʹ‫͖ͮج‬ΫϥελԽ͢Δ͜ͱͷ༗ޮੑΛ͍ࣔͯ͠Δɻຊ‫Ͱڀݚ‬͸ɺಈը૾தʹઃఆͨ͠௚ઢঢ়ͷԾ૝ήʔτΛ௨աͨ͠௨ߦਓ਺Λ࣮࣌ؒͰ‫ܭ‬ଌ͢ΔγεςϜ
Λର৅ͱͯ͠ɺΦϓςΟΧϧϑϩʔͷΫϥελԽʹ‫ج‬ਤ 5: ‫܁‬Γฦ͠ߏ଄͖ͮ௨ߦਓ਺ͷਪఆΛߦ͏ख๏ΛఏҊ͢Δɻ͜͜Ͱɺ
࢖༻͢Δ࠲ඪ‫ܥ‬ɺΦϓςΟΧϧϑϩʔநग़ର৅఺ͷ഑ஔํ๏ɺ͓ΑͼΦϓςΟΧϧϑϩʔநग़ʹ༻͍Δಈը

[ؔ࿈ൃද࿦จ]• খࢁߕࣹ, “IEEE 802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔϢʔβ୺຤ऩ༰ͷͨΊͷλΠϜεϩοτׂΓ౰ͯख๏ͷධՁ,” େࡕେֶ‫ֶ޻ૅج‬෦৘ใՊֶՊ
ಛผ‫ڀݚ‬ใࠂ, Feb. 2013.

4.2

૾ϑϨʔϜ਺ͳͲɺΦϓςΟΧϧϑϩʔͷநग़աఔͷॲཧʹ͸ࣗ༝౓͕͋Δɻຊ‫Ͱڀݚ‬͸ɺ͜ΕΒͷॲཧʹ
༻͍ΔํࣜΛ͞·͟·ʹ૊Έ߹ΘͤͯΦϓςΟΧϧϑ
ϩʔΛநग़ͨ͠৔߹ͷɺఏҊख๏ͷ‫ܭ‬ଌਫ਼౓ͷൺֱධՁΛߦ͏͜ͱͰɺ‫ܭ‬ଌਫ਼౓ͷߴ͍૊Έ߹ΘͤΛಘΔɻఏҊख๏ͷੑೳධՁ͸ɺେࡕେֶαΠόʔϝσΟΞη

าߦऀ਺‫ܭ‬ଌʹؔ͢Δ‫ڀݚ‬ϯλʔલͰࡱӨͨ͠ಈը૾ʹରͯ͠ߦͬͨɻͦͷ݁Ռɺۙ೥ɺಓ࿏ͷ௨ߦྔ΍‫ݐ‬෺ɺ࠵͠෺ձ৔౳ͷೖୀ৔Ծ૝ήʔτ্ʹΦϓςΟΧϧϑϩʔͷநग़ର৅఺Λ഑ऀ਺Λ೺Ѳ͢ΔͨΊͷਓྲྀ‫ܭ‬ଌͷࣗಈԽʹର͢Δधཁ

ஔ͠நग़ͨ͠ΦϓςΟΧϧϑϩʔΛΫϥελԽ͢Δ͕ߴ·͍ͬͯΔɻຊ‫Ͱڀݚ‬͸ɺΧϝϥͰऔಘͨ͠ಈը

͜ͱʹΑͬͯߴ͍‫ܭ‬ଌਫ਼౓͕ಘΒΕΔ͜ͱΛ໌Β͔ʹ૾͋Δ͍͸୯७ͳηϯαΛ૊Έ߹ΘͤΔ͜ͱʹΑΓɺͨ͠ɻਓྲྀΛ࣮࣌ؒɺߴਫ਼౓ʹ‫ܭ‬ଌɺ௥੻Ͱ͖Δख๏Λ‫ݕ‬౼͍ͯ͠Δɻ

― 62 ―

ਤ 6: Ծ૝ήʔτ௨աਓ਺‫ܭ‬ଌਤ 7: าߦऀ਺ਪఆ‫ڥ؀‬

4.2.2

ಈը૾தͷาߦऀ਺ਪఆʹؔ͢Δ‫ڀݚ‬ࢪઃ಺ͷ҆શ؅ཧ΍ϚʔέςΟϯάௐࠪɺาߦऀͷࠞࡶΛճආ͢ΔφϏήʔγϣϯͳͲΛ໨తͱͯ͠ɺา
ߦऀ਺ͷ‫ܭ‬ଌΛࣗಈͰߦ͏γεςϜʹର͢Δधཁ͕ߴ
·͍ͬͯΔɻಛʹɺۙ೥ͷίϯϐϡʔλੑೳͷ޲্ʹΑΓɺ༷ʑͳಈը૾ॲཧ͕࣮࣌ؒͰॲཧՄೳͱͳͬͨ
͜ͱ͔ΒɺΧϝϥͰࡱӨͨ͠ಈը૾Λར༻ͨ͠าߦऀ
਺‫ܭ‬ଌ͕஫໨͞Ε͍ͯΔɻ
ಈը૾தͷาߦऀ਺‫ܭ‬ଌͷͨΊͷ‫ط‬ଘख๏ͱͯ͠ɺ
ಛ௃఺ͱ‫ݺ‬͹ΕΔɺը૾தͷ৭΍ೱ୶ͷมԽ͕ܹ͍͠
఺ͷ਺͔Βาߦऀ਺Λ‫ܭ‬ଌ͢Δख๏͕ఏҊ͞Ε͍ͯΔɻਤ 8: าߦऀϞσϧͷߏங͜ͷख๏͸ɺಈը૾ͷ֤ϑϨʔϜʹ͓͚Δಛ௃఺਺ͱ
ྖҬ಺ΛҠಈ͢Δาߦऀ਺͕ઢ‫ܗ‬ͷؔ܎ʹ͋Δͱ͍͏Ծఆʹ‫͍͍ͯͮج‬Δɻ͔͠͠ɺಈը૾தͷาߦऀ਺͕

4.2.3

ଟ͍৔߹ɺෳ਺ͷาߦऀ͕ಈը૾্ͰॏͳΔΦΫϧʔʹؔ͢Δ‫ڀݚ‬δϣϯ͕ଟ͘ൃੜ͠ɺը໘ԞʹҐஔ͢ΔาߦऀͷҰ෦͕ӅΕΔ͜ͱʹΑΓɺͦΕΒͷาߦऀʹର͢Δಛ௃఺਺͸େ͖͘‫ݮ‬গ͢ΔɻͦͷͨΊɺಛ௃఺਺ͱาߦऀ਺
ͷؔ܎͸ઢ‫Ͱܗ‬͸ͳ͘ͳΓɺ‫ܭ‬ଌਫ਼౓͕௿Լ͢Δɻຊ‫Ͱڀݚ‬͸ɺΦΫϧʔδϣϯͷൃੜ͕ಈը૾தͷาߦऀ਺ͷ‫ܭ‬ଌਫ਼౓ʹ༩͑ΔӨ‫ڹ‬Λ໌Β͔ʹ͢ΔɻͦͷͨΊʹɺ·ͣɺ࣮ಈը૾͔Βநग़ͨ͠ɺΦΫϧʔδϣϯͷͳ͍าߦऀͷಛ௃఺෼෍ʹ‫͍ͨͮج‬าߦऀϞσϧΛߏங͢Δɻ࣍ʹɺาߦऀϞσϧΛԾ૝ྖҬʹ഑ஔ͢ΔγϛϡϨʔγϣϯΛߦ͏͜ͱͰɺาߦऀີ౓ͷߴ͘ΦΫϧʔδϣϯ͕ଟ͘ൃੜ͢Δ‫͚͓ʹڥ؀‬Δɺಛ௃఺਺ͱาߦऀ਺ͷؔ܎Λ໌Β͔ʹ͢Δɻ͞ΒʹɺಘΒΕͨؔ܎Λ༻͍ͯาߦऀ਺Λਪଌ͢Δ͜ͱͰɺาߦऀ਺
ͷ‫ܭ‬ଌਫ਼౓Λ޲্ͤ͞Δख๏ΛఏҊ͢Δɻෳ਺ͷ࣮ಈը૾Λ༻͍ͨੑೳධՁͷ݁ՌɺఏҊख๏Λ༻͍Δ͜ͱʹΑΓɺ‫ط‬ଘख๏ͱൺֱͯ͠‫ܭ‬ଌਫ਼౓͕࠷େ 40%վળ
͢Δ͜ͱΛࣔ͢ɻ

ಈը૾தͷาߦऀ਺ਪఆʹ༗ޮͳಛ௃ྔͷ෼ੳಓ࿏ͷ௨ߦਓ਺΍‫ݐ‬෺ɺΠϕϯτձ৔ͷೖ৔ऀ਺ͳ
Ͳͷ‫ܭ‬ଌٕज़͸ɺϚʔέςΟϯάௐࠪɺηΩϡϦςΟ
؅ཧɺࢪઃӡӦͷޮ཰ԽͳͲͷ͞·͟·ͳ༻్Ͱ‫ٻ‬ΊΒΕ͍ͯΔɻखಈʹΑΔาߦऀ਺‫ܭ‬ଌ͸ਓһίετ͕ߴ͘ɺଟ਺ͷาߦऀ͕ߦ͖͔͏ࠞࡶঢ়‫گ‬ԼͰ͸‫ܭ‬ଌ͕ࠔ೉ͱͳΔɻͦͷͨΊɺࣗಈతʹาߦऀ਺ਪఆΛߦ͏‫͕ڀݚ‬஫໨ΛूΊ͍ͯΔɻ੺֎ઢ‫ܕ‬΍Ϩʔβʔ‫ܕ‬ͷηϯαΛ༻͍ͨาߦऀ਺ਪఆ͸ɺ҆Ձʹาߦऀ਺‫ܭ‬ଌɺਪఆΛߦ͏͜ͱ͕ՄೳͰ͋Δ͕ɺηϯα͔ΒಘΒΕΔ
৘ใྔ͕গͳ͍ͨΊɺࠞࡶঢ়‫گ‬ԼͰਖ਼֬ͳਪఆΛߦ͏͜ͱ͸೉͍͠ɻҰํɺΧϝϥΛ༻͍ͨาߦऀ਺ਪఆ͸ɺ‫ܭ‬ଌ৔ॴ͔Β཭Εͨ৔ॴ͔ΒͷࡱӨ͕ՄೳͰ͋Δɺಈը૾͔ΒಘΒΕΔ৘ใྔ͕ଟ͍ͳͲͷར఺͕͋ΓɺैདྷΑΓଟ͘ͷ‫ߦ͕ڀݚ‬ΘΕ͖ͯͨɻಛʹۙ೥Ͱ͸ɺࠞࡶঢ়‫گ‬Լʹ͓͚Δาߦऀ਺ਪఆͷͨΊʹɺಈը૾͔ΒಘΒΕΔಛ௃ྔΛ࢖ͬͯ౷‫ܭ‬తख๏ʹΑΓาߦऀ਺Λ
ਪఆ͢Δख๏͕ෳ਺ఏҊ͞Ε͍ͯΔɻ͔͠͠ɺैདྷͷ[ؔ࿈ൃද࿦จ]‫͍͓ͯʹڀݚ‬͸ɺͦΕͧΕҟͳΔ‫ڥ؀‬ԼͰɺ‫ݸ‬ผͷಛ• ‫ڮ‬ຊ࿨޾, “ಈը૾தͷಛ௃఺਺ʹ‫ͮ͘ج‬าߦऀ਺௃ྔʹ‫ͮ͘ج‬ख๏͕ධՁ͞Ε͓ͯΓɺาߦऀ਺ਪఆʹ‫ܭ‬ଌख๏ʹΦΫϧʔδϣϯ͕༩͑ΔӨ‫ڹ‬ͷධՁ,”༗ޮͳಛ௃ྔͷൺֱ͕ࠔ೉Ͱ͋Δɻຊ‫Ͱڀݚ‬͸ɺಉҰͷ‫ڥ؀‬ԼͰɺ͞·͟·ͳಈը૾Λେࡕେֶ‫ֶ޻ૅج‬෦৘ใՊֶՊಛผ‫ڀݚ‬ใࠂ, Feb.

2013.

ର৅ͱͯ͠ɺಈը૾͔ΒಘΒΕΔ͞·͟·ͳಛ௃ྔΛઆ໌ม਺ɺาߦऀ਺Λैଐม਺ͱͯ͠ॏճ‫ؼ‬෼ੳΛߦ

― 63 ―

ධՁͷ݁Ռɺ‫ط‬ଘख๏ͱൺֱͯ͠ɺଟ਺ͷาߦऀ͕ߦ
͖ަ͏ࠞࡶঢ়‫گ‬Լʹ͓͍ͯਪఆਫ਼౓͕໿ 49%վળ͞ΕΔ͜ͱ͕໌Β͔ʹͳͬͨɻਤ 9: ෼ੳʹ༻͍Δಛ௃ྔਤ 10: ෳ‫؟‬ηϯαγεςϜ

͏͜ͱʹΑΓɺาߦऀ਺ਪఆʹ༗ޮͳಛ௃ྔΛ໌Β͔ʹ͢Δɻಛ௃ྔͱͯ͠͸ɺैདྷͷ‫͍༻Ͱڀݚ‬ΒΕ͍ͯ
Δಛ௃ྔͷத͔ΒɺҠಈ෺ମͷେ͖͞ɺྠֲͷ௕͞ɺҠಈ෺ମͷಈ͖ϕΫτϧΛද͢ΦϓςΟΧϧϑϩʔ਺ɺ[ؔ࿈ൃද࿦จ]• ౻Ҫਸ౉, ୩‫ޱ‬ٛ໌, ௕୩઒߶, த໺തོ, “ෳ‫؟‬ηϯαγεςϜͷͨΊͷϞϯςΧϧϩ๏ʹ‫ͮ͘ج‬าΦϓςΟΧϧϑϩʔͷΫϥελ਺Λ༻͍Δɻ෼ੳʹ͸ɺେࡕେֶαΠόʔϝσΟΞηϯλʔલΛࡱӨͨ͠ಈըߦऀ਺ਪఆख๏ͷఏҊͱධՁ,” ిࢠ৘ใ௨৴ֶձ૾ɺ‫ ͼٴ‬PETS ϫʔΫγϣοϓͷซઃίϯςετͰ༻ٕज़‫ڀݚ‬ใࠂ (PRMU2012-23), vol. 112, no. 111,͍ΒΕͨಈը૾ͳͲͷෳ਺ͷ࣮ಈը૾Λ༻͍Δɻͦͷ

pp. 13–18, ૣҴాେֶ, ౦‫ژ‬, June 2012.

݁Ռɺࠞࡶঢ়‫گ‬Լʹ͓͚Δาߦऀ਺ਪఆʹ͓͍ͯɺΦ• Shuto Fujii, Yoshiaki Taniguchi, Go Hasegawa
and Hirotaka Nakano, “Monte Carlo-based bi-ϓςΟΧϧϑϩʔ਺ͱҠಈ෺ମͷྠֲͷ௕͞Λ૊Έ߹Θͤͯ༻͍Δ͜ͱ͕༗ޮͰ͋Δ͜ͱ͕෼͔ͬͨɻ

directional pedestrian counting with compound-eye
sensor,” in Proceedings of the 2012 IEEE Interna-[ؔ࿈ൃද࿦จ]• ా্୓໻, “ಈը૾தͷาߦऀ਺ਪఆʹ͓͚Δઆ໌

tional Conference on Computer Systems and Industrial Informatics (ICCSII 2012), 6 pages, Sharjah,
UAE, Dec. 2012.

ม਺ͷॏճ‫ؼ‬෼ੳΛ༻͍ͨධՁ,” େࡕେֶ‫޻ૅج‬ֶ෦৘ใՊֶՊಛผ‫ڀݚ‬ใࠂ, Feb. 2013.

• ా্୓໻, ୩‫ޱ‬ٛ໌, ௕୩઒߶, த໺തོ, “ಈը૾தͷาߦऀ਺ਪఆʹ͓͚Δઆ໌ม਺ͷॏճ‫ؼ‬෼ੳΛ༻͍ͨධՁ,” ը૾ిࢠֶձୈ 264 ճ‫ڀݚ‬ձߨԋ• Shuto Fujii, Yoshiaki Taniguchi, Go Hasegawa
and Hirotaka Nakano, “A Monte Carlo-based
bi-directional pedestrian counting method forcompound-eye sensor systems,” submitted for༧ߘू, pp. 37–44, ߴ஌޻Պେֶ, ߴ஌, Feb. 2013.

4.2.4

publication.

ෳ‫؟‬ηϯαΛ༻͍ͨาߦऀਪఆʹؔ͢Δ‫ڀݚ‬ຊ‫Ͱڀݚ‬͸ɺ࿓ԼͷΑ͏ʹาߦऀ͕ 2 ํ޲ʹҠಈ͢
ΔΑ͏ͳ԰಺‫ڥ؀‬Λର৅ͱͯ͠ɺาߦऀͷ༗ແͷΈΛ൑ผՄೳͳόΠφϦηϯαΛ༻͍ͯɺଟ਺ͷาߦऀͷߦ͖ަ͏ࠞࡶঢ়‫گ‬Լʹ͓͚ΔҠಈํ޲ผͷาߦऀ਺Λ

4.3

Δ‫ڀݚ‬

4.3.1

ͳΔΑ͏ʹఱҪʹ഑ஔ͢Δ͜ͱͰෳ‫؟‬ηϯαΛߏ੒͢Δɻෳ‫؟‬ηϯα͔ΒಘΒΕΔηϯα৘ใ͸αʔόʹऩू͞Εɺαʔό্Ͱาߦऀ਺ͷਪఆ͕ߦΘΕΔɻఏҊख๏Ͱ͸ɺαʔό্ͰҰఆճ਺ͷϞϯςΧϧϩγϛϡ
ϨʔγϣϯΛߦ͍ɺෳ‫؟‬ηϯαͷग़ྗཤྺͱ΋ͬͱ΋͍ۙग़ྗཤྺΛ΋ͬͨγϛϡϨʔγϣϯࢼߦʹ͓͚Δ
าߦऀ਺Λਪఆ݁Ռͱ͢ΔɻγϛϡϨʔγϣϯʹΑΔ

ΦʔόϨΠϧʔςΟϯάʹΑͬͯ૿Ճ͢Δ ISPؒτϥϯδοτίετͷ࡟‫ؔ͢ʹݮ‬Δ‫ڀݚ‬ਪఆ͢Δख๏ΛఏҊ͢ΔɻຊใࠂͰର৅ͱ͢ΔγεςϜͰ͸ɺ2 ͭͷόΠφϦηϯηΛηϯγϯάྖҬ͕ॏΦʔόϨΠωοτϫʔΫΞʔΩςΫνϟʹؔ͢ΦʔόϨΠϧʔςΟϯά͸ΦʔόϨΠωοτϫʔΫΛ༻͍ͨΞϓϦέʔγϣϯ૚Ͱಈ࡞͢Δ‫ܦ‬࿏੍‫ٕޚ‬ज़Ͱ͋Γɺ஗Ԇ࣌ؒ΍ར༻ՄೳଳҬͳͲͷࢦඪΛ༻͍ͯ‫ܦ‬࿏Λબ୒͢Δ͜ͱͰɺϢʔβ͕ମ‫͖Ͱײ‬Δੑೳ͕޲্͢Δ͜ͱ͕஌ΒΕ͍ͯΔɻҰํͰɺIP ૚ͰߦͳΘΕΔ‫ܦ‬࿏੍‫ͱޚ‬ͷϙϦγͷҧ͍ʹΑΓɺISP ͷίετߏ଄ʹѱӨ‫ڹ‬Λ༩͑Δ͜ͱ͕ߟ͑ΒΕΔɻISP ʹΑͬͯఏ‫͞ڙ‬ΕΔ IP ϧʔςΟϯά͸ɺҰൠʹྡ઀ ISP ͱͷϦϯΫͷ࢖༻ʹ͔͔ΔۚમతίετΛߟ੍ྀͯ͠‫ޚ‬― 64 ―

͞Ε͍ͯΔɻରͯ͠ΦʔόϨΠϧʔςΟϯάͰ͸ΤϯΩϟογϡ͢ΔίϯςϯπͷॏෳΛഉআ͢Δɻ͜Εʹυؒͷੑೳ޲্Λ໨తͱͯ͠‫ܦ‬࿏͕બ୒͞ΕΔͨΊɺΑΓ‫ݶ‬ΒΕͨϝϞϦ༰ྔΛ༗ޮར༻ͯ͠Ωϟογϡώο

ΦʔόϨΠϧʔςΟϯάͷར༻ʹΑͬͯ௨ա͢Δτϥτ཰ΛߴΊɺτϥϯδοτίετΛେ͖͘࡟‫͢ݮ‬Δɻ

ϯδοτϦϯΫ਺͕૿Ճ͠ɺISP ͷτϥϯδοτίε

࣮ࡍͷ঎༻ ISP ͷωοτϫʔΫτϙϩδΛར༻ͨ͠γ
ϛϡϨʔγϣϯධՁʹΑΓɺఏҊख๏͕௨ৗͷ CCN

τ͕૿େ͢Δ͜ͱ͕ߟ͑ΒΕΔɻ
ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺΦʔόϨΠϧʔςΟϯάʹΑͬͯ૿Ճ͢Δ ISP ؒͷτϥϯδοτίετΛ࡟‫͢ݮ‬Δख๏ΛఏҊͨ͠ɻఏҊख๏Ͱ͸ɺ‫ܦ‬࿏্ͷτϥϯδοτ
ϦϯΫ਺Λτϥϯδοτίετͷࢦඪͱ͠ɺΦʔόϨͱൺ΂ɺτϥϯδοττϥώοΫྔΛ࠷େͰ 28% ࡟‫͖Ͱݮ‬Δ͜ͱΛͨ͠ɻ[ؔ࿈ൃද࿦จ]ΠϧʔςΟϯάʹΑΔੑೳ޲্Λҡ࣋ͭͭ͠ɺτϥϯδοτίετΛ཈͑Δ‫ܦ‬࿏Λબ୒͢Δɻ࣮ωοτϫʔΫͷ‫ܭ‬ଌσʔλΛ༻͍ͨධՁʹΑΓɺఏҊख๏Λ༻͍ͨΦʔόϨΠϧʔςΟϯά͕ɺ௨ա͢Δτϥϯδοτ
ϦϯΫͷ਺Λ࡟‫ͭͭ͠ݮ‬ɺτϥϯδοτϦϯΫͷ੍‫ݶ‬ΛߦΘͳ͍৔߹ͷΦʔόϨΠϧʔςΟϯάͱಉ౳ͷੑೳ޲্ΛಘΒΕ͍ͯΔ͜ͱΛࣔͨ͠ɻ• দాҰਔ, ௕୩઒߶, ଜాਖ਼޾, “τϥώοΫมಈʹԠͨ͡ൃ‫ݟ‬తख๏ʹ‫ͮ͘ج‬ಈతΞϓϦέʔγϣϯ૚‫ܦ‬࿏੍‫ޚ‬ख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ

(IN2012-36), vol. 112, no. 134, pp. 19–24, ๺ւಓେֶ, ๺ւಓ, July 2012.
• Kazuhito Matsuda, “Reducing ISPs’ cost by
application-level path selection and in-network
caching,” Ph.D. Thesis, Graduate School of Information Science and Technology, Osaka University,
Jan. 2013.
• Kazuhito Matsuda, Go Hasegawa, Satoshi Kamei
and Masayuki Murata, “A method to reduce interISP transit cost caused by overlay routing based on
end-to-end network measurement,” IEICE Transactions on Information and Systems, vol. E96-D, no. 2,
pp. 289–302, Feb. 2013.

ਤ 11: ϐΞϦϯάϦϯΫͱτϥϯδοτϦϯΫ• দాҰਔ, ௕୩઒߶, ଜాਖ਼޾, “τϥϯδοτίε
τ࡟‫ݮ‬ͷͨΊͷ ISP ؒ‫ڠ‬ௐʹ‫ ͮ͘ج‬CCN Ωϟο·ͨɺ͜ͷΑ͏ͳΞϓϦέʔγϣϯ૚ʹ͓͍ͯଞΤγϡ‫ڞ‬༗ख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂϯυϗετΛ‫ܦ‬༝͢ΔΑ͏ͳ‫ܦ‬࿏ΛΤϯυؒͷωοτϫʔΫੑೳΛࢦඪͱͯ͠બ୒͢Δࡍʹɺ֤ʑͷΤϯυ(NS2012-236), vol. 112, no. 464, pp. 415–420, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar. 2013.

Ϣʔβ͕ಠࣗʹ‫ܦ‬࿏બ୒Λߦ͏ͱɺ‫ܦ‬࿏ͷॏෳʹΑΔ• ௕୩઒߶, “ϢʔβʹΑΔτϥώοΫ‫ܦ‬࿏੍‫͕ޚ‬Ϣʔβੑೳͷ௿Լ΍ɺར༻͢Δ ISP ؒτϥϯδοτϦ

ISP ʹ༩͑ΔΠϯύΫτ,” 2013 ೥৘ใ௨৴ϚωδϝϯτϫʔΫγϣοϓ, ԰‫ٱ‬ౡ‫ڥ؀‬จԽଜηϯλʔ, ࣛࣇౡ, Mar. 2013. (ট଴ߨԋ)ϯΫ͕૿Ճ͢Δ͜ͱʹΑΔ ISP ͷτϥϯδοτίετ
૿େ͕ൃੜ͢Δ఺ʹண໨͠ɺ৽ͨͳΞϓϦέʔγϣϯ૚‫ܦ‬࿏੍‫ޚ‬ख๏ͷఏҊΛߦͬͨɻ۩ମతʹ͸ɺ·ͣɺΞϓϦέʔγϣϯ૚ʹ͓͚Δ‫ܦ‬࿏બ୒ͷ࠷దԽ໰୊Λఆٛ͠ɺ͜ΕΛম͖ͳ·͠๏Λ༻͍ͯղ͘͜ͱʹΑΓɺϢʔβੑೳͷ޲্΍τϥϯδοτίετͷ࡟‫ݮ‬Λ࣮‫ݱ‬͢Δ‫ܦ‬࿏੍‫ޚ‬ख๏Λूதॲཧɺ෼ࢄॲཧͷ 2 ͭͷ‫Ͱܗ‬ఏҊͨ͠ɻPlanetLab ϊʔυؒͰ‫ܦ‬࿏੍‫ޚ‬Λߦ͏͜ͱΛ૝ఆͯ͠ɺఏҊख๏ͷੑೳධՁΛߦͬͨ݁Ռɺେ෯
ͳωοτϫʔΫੑೳͷ޲্͕ಘΒΕɺಛʹར༻Մೳଳ
Ҭʹ͓͍ͯ͸ฏ‫ Ͱۉ‬84%ͷੑೳ޲্͕ಘΒΕΔ͜ͱΛࣔͨ͠ɻ͞Βʹɺۙ೥ఏҊ͞Ε͍ͯΔ৽ͨͳ‫ܦ‬࿏੍‫ޚ‬ख๏Ͱ
͋Δ Content-Centric Networking (CCN) ͷΩϟογϡΛ
ϧʔλؒͰ‫ڞ‬༗͢Δ͜ͱͰɺISP ͷτϥϯδοτίε
τΛ࡟‫͢ݮ‬Δख๏ΛఏҊɺධՁͨ͠ɻఏҊख๏Ͱ͸ɺ

CCN ϧʔλؒͰ‫ʹ͍ޓ‬ΩϟογϡΛར༻͠ɺ͓‫ʹ͍ޓ‬― 65 ―• Kazuhito Matsuda, Go Hasegawa and Masayuki
Murata, “An application-level routing method withtransit cost reduction based on a distributed heuristic algorithm,” submitted for publication.
• Kazuhito Matsuda, Go Hasegawa and Masayuki
Murata, “Multi-ISP cooperative cache sharing forsaving inter-ISP ransit cost in content centric networking,” submitted for publication.
• Kazuhito Matsuda, Go Hasegawa and Masayuki
Murata, “Cooperative cache sharing among ISPs
for additional reduction in inter-ISP transit cost incontent-centric networking,” submitted for publication.

4.3.2ΦʔόϨΠωοτϫʔΫʹ͓͚ΔωοτϫʔΫੑೳ‫ܭ‬ଌख๏ʹؔ͢Δ‫ڀݚ‬ΦʔόϨΠωοτϫʔΫ͸ IP ωοτϫʔΫ্ʹ࿦ཧతʹߏங͞ΕͨωοτϫʔΫͰ͋ΔͨΊɺੑೳͷҡ࣋ɺ޲্ͷͨΊʹ͸ఆ‫ظ‬తʹΦʔόϨΠύεͷࢿ‫ݯ‬৘ใΛ‫ܭ‬ଌʹΑͬͯಘΔඞཁ͕͋ΔɻΦʔόϨΠωοτϫʔΫͷߏஙʹඞཁͳ৘ใΛಘΔख๏͸਺ଟ͘ఏҊ͞Εͯਤ 13: ධՁ݁Ռ͍Δ͕ɺͦͷଟ͘͸খ‫ن‬໛ͳΦʔόϨΠωοτϫʔΫΛର৅ͱ͓ͯ͠ΓɺશͯͷΦʔόϨΠϊʔυؒͷ‫ܦ‬࿏Λ‫ܭ‬ଌ͢Δख๏Ͱ͋Δɻ͜ͷΑ͏ͳख๏Ͱ͸ΦʔόϨΠϊʔυ਺ͷ 2 ৐ͷ‫ܭ‬ଌίετ͕ඞཁͰ͋ΓɺΦʔό[ؔ࿈ൃද࿦จ]• Dinh Tien Hoang, ௕୩઒߶, ଜాਖ਼޾, “ΦʔόϨϨΠϊʔυ਺͕૿Ճͨ͠৔߹ʹ͸‫ܭ‬ଌʹඞཁͳίετΠωοτϫʔΫʹ͓͚Δ‫ॴہ‬తͳ৘ใަ‫ͮجʹ׵‬ͷ૿Ճ͕໰୊ͱͳΔɻ͘෼ࢄ‫ܭܕ‬ଌख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (IN2012-35), vol. 112, no. 134, pp. 13–18, ๺ւಓେֶ, ๺ւಓ, July 2012.

• Dinh Tien Hoang, Go Hasegawa and Masayuki Murata, “A distributed and conÀict-aware measurement
method based on local information exchange inoverlay networks,” in Proceedings of the 2012 Australasian Telecommunication Networks and Applications Conference (ATNAC 2012), 6 pages, Brisbane, Australia, Nov. 2012.

ਤ 12: IP ωοτϫʔΫͱΦʔόϨΠωοτϫʔΫ• Dinh Tien Hoang, Go Hasegawa and Masayuki Murata, “A low-cost, distributed and conÀict-aware
measurement method for overlay network services͜ͷΑ͏ͳΦʔόϨΠωοτϫʔΫʹ͓͚Δ‫ܭ‬ଌʹ͓͍ͯ͸ɺ‫ܭ‬ଌ‫ܦ‬࿏਺Λ࡟‫͢ݮ‬Δɺ͋Δ͍͸ɺεʔύʔϊʔυΛઃஔͯ͠ΦʔόϨΠωοτϫʔΫͷશͯ

utilizing local information exchange,” IEICE Transactions on Communications, vol. E96-B, no. 2,ͷ‫ܦ‬࿏৘ใΛऩू͠ɺ‫׬‬શεέδϡʔϦϯάʹΑͬͯ

pp. 459–469, Feb. 2013.

‫ܭ‬ଌͷিಥΛճආ͢Δख๏͕ఏҊ͞Ε͍ͯΔɻ͜Εʹର͠ຊ‫Ͱڀݚ‬͸ɺεʔύʔϊʔυΛ࢖༻ͤͣɺ͔ͭɺ

4.3.3

Ϛϧνςφϯτ‫ܕ‬σʔληϯλʹ͓͚ΔԾ૝
ωοτϫʔΫ഑ஔʹؔ͢Δ‫ڀݚ‬

IP ωοτϫʔΫͷ‫׬‬શͳτϙϩδ৘ใΛඞཁͱ͠ͳ
͍ɺΦʔόϨΠωοτϫʔΫ‫ܭ‬ଌख๏ΛఏҊͨ͠ɻ۩Ϛϧνςφϯτ‫ܕ‬σʔληϯλͰ͸ɺ‫ج‬൫ͱͳΔ෺ମతʹ͸ɺ‫ݸ‬ʑͷΦʔόϨΠϊʔυ͕ࣗ਎Λ࢝఺ͱ͢ཧωοτϫʔΫ͕උ͑ΔੑೳΛ༨͢͜ͱͳ͘ςφϯτΔΦʔόϨΠύεͷ‫ܭ‬ଌλΠϛϯάΛܾఆ͠ɺ‫ܭ‬ଌিʹ഑෼͠ɺ͔ͭɺ෺ཧωοτϫʔΫͷো֐͕ςφϯτಥΛճආ͢ΔɻఏҊख๏͸ɺ‫ݸ‬ʑͷΦʔόϨΠϊʔυʹ༩͑ΔӨ‫ڹ‬Λ཈͑ΔͨΊɺςφϯτΛߏ੒͢ΔԾ૝͕ଞͷΦʔόϨΠϊʔυ·ͰͷΞϯμʔϨΠ‫ܦ‬࿏৘ใωοτϫʔΫΛ෺ཧωοτϫʔΫ্ʹద੾ʹ഑ஔ͢Δ

Λऔಘ͠ɺଞͷΦʔόϨΠϊʔυͱ‫ܦ‬࿏৘ใΛަ‫͢׵‬͜ͱ͕ඞཁʹͳΔɻͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺ·ͣɺςφϯΔ͜ͱʹΑΓɺࣗ਎Λ࢝఺ͱ͢Δ‫ܦ‬࿏ͱɺଞͷΦʔότ༻Ծ૝ωοτϫʔΫͷτϥώοΫϑϩʔ͕෺ཧϦϯϨΠϊʔυΛ࢝఺ͱ͢Δύεͷ‫ܦ‬࿏ॏෳͷঢ়ଶΛਪఆΫ΍෺ཧϊʔυ΁ׂΓ౰ͯΒΕ͍ͯΔঢ়ଶΛϞσϧ

͢Δɻ1 ͭͷΦʔόϨΠϊʔυΛ࢝఺ͱ͢Δෳ਺ͷύԽͨ͠ɻͦͯ͠ɺ֤Ծ૝ωοτϫʔΫʹ͓͍ͯɺ֤ϑε͸ɺஞ࣍తʹ‫ܭ‬ଌΛߦ͏͜ͱͰɺ‫ܭ‬ଌিಥΛճආ͢ϩʔͷར༻ՄೳଳҬͷ߹‫ͱܭ‬෺ཧωοτϫʔΫͷো֐ΔɻҰํɺ࢝఺͕ҟͳΔ‫ܦ‬࿏͸ɺ࢝఺ΦʔόϨΠϊʔʹΑࣦͬͯΘΕΔଳҬͷ߹‫ܭ‬ͷࠩΛ༗ޮଳҬͱఆٛ͠ɺ

υ͕ϥϯμϜʹ‫ܭ‬ଌλΠϛϯάΛܾఆ͢Δ͜ͱͰɺি

Ծ૝ωοτϫʔΫͷ഑ஔ໰୊ΛఆΊͨɻ͞ΒʹɺԾ૝ಥΛ֬཰తʹճආ͢ΔɻੑೳධՁͷ݁Ռɺैདྷͷ‫׬‬શωοτϫʔΫͷো֐෮‫ؒ࣌چ‬ͷϞσϧΛఏࣔͨ͠ɻ࣍

εέδϡʔϦϯά‫ܕ‬ͷ‫ܭ‬ଌख๏ʹൺ΂ͯߴ͍‫ܭ‬ଌස౓͍Ͱɺ‫ػࢉܭ‬γϛϡϨʔγϣϯΛߦ͍ɺར༻ՄೳଳҬɺΛୡ੒͠ɺ͔ͭɺ‫ܭ‬ଌॏෳΛޮ཰తʹճආͰ͖Δ͜ͱো֐ʹΑΓࣦΘΕΔଳҬɺ༗ޮଳҬͷͦΕͧΕΛ࠷దΛ໌Β͔ʹͨ͠ɻ

Խର৅ͱͯ͠഑ஔͨ͠ঢ়ଶʹ͓͍ͯɺԾ૝ωοτϫʔΫશମͷ༗ޮଳҬͱো֐ʹΑΔఀࢭ࣌ؒΛධՁͨ͠ɻ

― 66 ―

ͦͷ݁Ռɺ༗ޮଳҬΛ࠷େԽ͢ΔԾ૝ωοτϫʔΫͷΒ͔ʹͨ͠ɻ·ͨɺ͜ͷ໰୊Λղܾ͢ΔͨΊʹɺISP

഑ஔ͸ɺ෺ཧωοτϫʔΫͷଳҬΛ࢖͍੾Γɺ͔ͭɺʹ͓͍ͯΦʔόʔϨΠτϥώοΫͷӨ‫ڹ‬Λ௿‫͢ݮ‬Δͨ

ো֐ʹΑΔఀࢭ࣌ؒΛɺར༻ՄೳଳҬΛ࠷େԽ͢Δ഑ΊͷϧʔνϯάઓུΛఏҊͨ͠ɻఏҊͨ͠ઓུΛ༻͍ஔʹൺ΂ 1/3 ఔ౓ʹ௿‫͖Ͱݮ‬Δ͜ͱΛࣔͨ͠ɻΔ͜ͱͰɺϧʔνϯάৼಈΛ๷͙ͱಉ࣌ʹɺISP ͷίετΛ཈੍͢Δ͜ͱ͕Ͱ͖Δɻ࠷‫ʹޙ‬ɺ্ड़ͷ੒ՌΛ౿·͑ɺISP ͕୯ʹΦʔόϨΠϧʔνϯάͷӨ‫ڹ‬Λ཈੍͢Δ͚ͩͰ͸ͳ͘ɺΦʔόϨΠϧʔνϯάΛ‫͢༻׆‬Δ͜ͱʹண໨͠ɺΦʔόϨΠϧʔνϯάͷར఺Λ‫͔ͭͭ͠׆‬ɺσϝϦοτΛճආ͢
ΔɺISP ؒΞϥΠΞϯεʹ‫ͮ͘ج‬υϝΠϯؒΦʔόϨΠωοτϫʔΫΛఏҊͨ͠ɻఏҊํࣜʹΑͬͯɺυϝΠϯؒϧʔνϯάͷੑೳͱ ISP ͷ‫ࡁܦ‬རӹΛཱ྆͢Δ

ਤ 14: Ծ૝ωοτϫʔΫ഑ஔ͜ͱ͕Ͱ͖ΔɻҎ্ͷΑ͏ʹɺຊ‫Ͱڀݚ‬͸ɺISP ؒͷ‫ܦ‬࿏੍‫ͱޚ‬ΦʔόϨΠϧʔνϯάͷؒͷ૬‫ؔ͢ʹ༻࡞ޓ‬Δ‫ڀݚ‬Λߦ͍ɺ[ؔ࿈ൃද࿦จ]• খ઒༞‫ل‬༤, ௕୩઒߶, ଜాਖ਼޾, “Ϛϧνςφϯ
τ‫ܕ‬σʔληϯλʹ͓͚Δੑೳͱ଱ো֐ੑΛߟྀͨ͠Ծ૝ԽωοτϫʔΫ഑ஔํࣜ,” ిࢠ৘ใ௨৴
ֶձٕज़‫ڀݚ‬ใࠂ (IN2012-186), vol. 112, no. 465,

pp. 191–196, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar.
2013.
4.3.4

ISP ͕ΦʔόϨΠϧʔνϯάͷωΨςΟϒͳӨ‫ڹ‬Λ཈੍͢Δํ๏ͱɺυϝΠϯؒϧʔνϯά‫ػ‬ೳΛվળ͢Δ
ͨΊͷΦʔόϨΠϧʔνϯάͷར༻ํ๏ΛఏҊ͓ͯ͠ΓɺISP ͷίετΛ௿‫͖Ͱݮ‬Δͱ‫ʹڞ‬ɺυϝΠϯؒϧʔνϯάͷ‫ػ‬ೳͷվળ͕Ͱ͖Δ͜ͱ͕໌Β͔ʹͳΔɻ

ISP ؒͷ‫ܦ‬࿏੍‫ͱޚ‬ΦʔόϨΠϧʔςΟϯάͷ
ؒͷ૬‫ؔ͢ʹ༻࡞ޓ‬Δ‫ڀݚ‬Πϯλʔωοτ͸༷ʑͳΠϯλʔωοταʔϏεϓϩόΠμʢISPʣ͕ӡӦ͢Δ਺ଟ͘ͷωοτϫʔΫ͔Βߏ੒͞ΕɺωοτϫʔΫؒͷσʔλ‫ܦ‬࿏Λܾఆ͢Δ
υϝΠϯؒϧʔνϯάʹ͸ɺISP ؒͷίετߏ଄͕൓ө͞ΕΔɻैͬͯɺ‫ࡏݱ‬ͷυϝΠϯؒϧʔνϯά͸ɺΤϯυ୺຤ؒͷωοτϫʔΫੑೳΛ࠷ద͢Δ΋ͷͰ͸ͳ͍ɻ͜Εʹର͠ɺωοτϫʔΫੑೳΛվળ͢ΔͨΊਤ 15: ISP ϞσϧʹɺΞϓϦέʔγϣϯ૚ʹ͓͍ͯτϥώοΫϧʔνϯάΛߦ͏ΦʔόϨΠϧʔνϯά͕ۙ೥‫ٸ‬଎ʹී‫ͯ͠ٴ‬
͍ΔɻͦͷͨΊɺΦʔόϨΠϧʔνϯάͱυϝΠϯؒ[ؔ࿈ൃද࿦จ]ϧʔνϯάͱͷؔ܎͕஫໨ΛूΊ͍ͯΔɻຊ‫Ͱڀݚ‬͸ɺ

• Xun Shao, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “ΦʔΦʔόϨΠϧʔνϯάͱυϝΠϯؒϧʔνϯάͱͷ૬‫ ͕༻࡞ޓ‬ISP ʹ༩͑Δ‫ࡁܦ‬໘‫ٕͼٴ‬ज़໘ͰͷӨ‫ڹ‬ɺ·ͨͦΕΒʹର͢Δ ISP ͷղܾࡦΛ·ͱΊ͍ͯΔɻ
·ͣɺISP ؒͷ૬‫઀ޓ‬ଓʹؔ͢ΔϏδωεϞσϧΛ
ಋೖ͠ɺ༷ʑͳঢ়‫͚͓ʹگ‬Δ ISP ؒͷωοτϫʔΫτϥώοΫͷύλʔϯΛϞσϧԽ͠ɺΦʔόϨΠϧʔνϯά͕ ISP ʹ༩͑Δ‫ࡁܦ‬తӨ‫ڹ‬ɺ͓Αͼ ISP ͕ଞͷ
ISP ͱ઀ଓΛߦ͏ࡍͷઓུʹ͍ͭͯߟ࡯ͨ͠ɻ͞Βʹɺ

ISP ؒͰద੾ͳ‫ܖ‬໿Λ݁Ϳ͜ͱʹΑΓɺISP ͷίετΛ࡟‫͢ݮ‬Δख๏ʹ͍ͭͯ‫ݕ‬౼ͨ͠ɻ࣍ʹɺΦʔόʔϨΠϧʔνϯάͱϚϧνϗʔϜ઀ଓΛߦ͍ͬͯΔ ISP ʹ͓͚ΔτϥώοΫ੍‫ޚ‬ͷ૬‫༻࡞ޓ‬ΛɺήʔϜཧ࿦ʹ‫͖ͮج‬ղੳ͠ɺΦʔόʔϨΠϧʔνϯά͕ϧʔνϯάৼಈΛ‫͢͜ى‬Մೳੑ͕͋Δ͜ͱΛ໌― 67 ―

όʔϨΠϧʔςΟϯάͱϚϧνϗʔϜ઀ଓ ISP
ͷ૬‫༻࡞ޓ‬ͷήʔϜཧ࿦ʹ‫ͮ͘ج‬ղੳ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (ICM2012-11), vol. 112,

no. 22, pp. 121–126, ळాେֶ, ळా, May 2012.
• Xun Shao, Go Hasegawa, Yoshiaki Taniguchi and
Hirotaka Nakano, “A game-theoretic analysis of interaction between overlay routing and multihoming,” in Proceedings of the 14th Asia-Paci¿c Network Operations and Management Symposium (APNOMS 2012), 7 pages, Seoul, Korea, Sep. 2012.
• Xun Shao, “Studies on the interation between overlay routing and inter-domain routing structure,”
Ph.D. Thesis, Graduate School of Information Sci-

4.4.1ence and Technology, Osaka University, Jan. 2013.
• Xun Shao, Go Hasegawa, Yoshiaki Taniguchi and
Hirotaka Nakano, “A routing strategy for multihomed ISP to mitigate the impact of overlay traf-

TCP ͷಈ࡞Λߟྀͨ͠ແઢ LAN ͷফඅిྗ௿
‫ؔ͢ʹݮ‬Δ‫ڀݚ‬IEEE 802.11 ແઢ LAN ʹ͓͍ͯ͸ɺແઢ௨৴͕ফ
අ͢Δిྗ͕શମͷ 10%͔Β 50%Λ઎ΊΔ͜ͱ͕ใ¿c,” IEICE Transactions on Information and Systems, vol. E96-D, no. 2, pp. 193–201, Feb. 2013.

ࠂ͞Ε͓ͯΓɺແઢ௨৴ͷফඅిྗΛ࡟‫͢ݮ‬Δ͜ͱ͕

• Xun Shao, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “ISP࿈‫ͮ͘جʹܞ‬υϝΠϯؒΦʔόϨΠωοτϫʔઢ LAN ʹ͓͚ΔলిྗԽʹؔ͢Δ‫ݕ‬౼͸ɺओʹϋʔΫ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (ICM2012-͔ΒߦΘΕ͍ͯΔɻҰൠʹɺωοτϫʔΫ‫ثػ‬ͷলి61), vol. 112, no. 492, pp. 13–18, ԰‫ٱ‬ౡ‫ڥ؀‬จԽଜηϯλʔ, ࣛࣇౡ, Mar. 2013.

ྗʹؔͯٞ͠࿦Λߦ͏৔߹ʹ͓͍ͯ͸ɺলిྗޮՌͱ

• Xun Shao, Go Hasegawa, Yoshiaki Taniguchi and
Hirotaka Nakano, “Economically ef¿cient interdo-

͋Δɻ͢ͳΘͪɺফඅిྗͷ࡟‫ޮʹݮ‬Ռͷ͋ΔཁҼΛ‫ثػ‬શମͷফඅిྗΛ࡟‫͢ݮ‬Δ͏͑ͰॏཁͰ͋Δɻແ
υ΢ΣΞϨϕϧ͓Αͼ MAC ϓϩτίϧϨϕϧͷ૒ํωοτϫʔΫੑೳؒͷτϨʔυΦϑΛߟྀ͢Δඞཁ͕໌Β͔ʹ͠ɺͦͷཁҼ͕Ͳͷఔ౓ωοτϫʔΫੑೳΛmain overlay network based on ISP alliance,” in Proceedings of the 9th International Conference on Net-

௿Լͤ͞Δ͔Λ஌Δ͜ͱ͕ॏཁͰ͋Δɻ͔͠͠ɺTCP

working and Services (ICNS 2013), Lisbon, Portugal, Mar. 2013.

ೳʹ༩͑ΔӨ‫ͯؔ͠ʹڹ‬͸͜Ε·Ͱ‫ݕ‬౼͕ߦΘΕ͍ͯͳͲͷτϥϯεϙʔτ૚ϓϩτίϧͷ‫ڍ‬ಈ͕লిྗੑ
ͳ͍ɻ• Xun Shao, Go Hasegawa, Yoshiaki Taniguchi and
Hirotaka Nakano, “The implications of overlay routing for ISPs’ peering strategies,” IEICE Transactions on Information and Systems, vol. E96-D, no. 5,
May 2013. (to appear)• Xun Shao, Go Hasegawa, Yoshiaki Taniguchi and
Hirotaka Nakano, “An overlay network based on ISP
alliance for economically ef¿cient interdomain traf¿c routing,” submitted for publication.
4.4

ਤ 16: ফඅిྗϞσϧ࣍ੈ୅ߴ଎τϥϯεϙʔτϓϩτίϧʹؔ͢Δ‫ڀݚ‬ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺແઢ LAN ʹ͓͍ͯ TCP σʔλసૹΛߦ͏ɺ୯Ұͷແઢ୺຤͕ফඅ͢ΔిྗͷϞσΤϯυϗετؒͰσʔλΛߴ଎ʹɺ͔ͭޮ཰Α͘స
ૹ͢ΔͨΊͷத৺ٕज़͕τϥϯεϙʔτϓϩτίϧͰ
͋ΔɻಛʹΠϯλʔωοτͰ༻͍ΒΕ͍ͯΔ TCP Ͱ͸ɺΤϯυϗετ͕ωοτϫʔΫͷ᫔᫓ঢ়ଶΛࣗ཯తʹ‫ݕ‬஌ͯ͠సૹ཰Λܾఆ͍ͯ͠Δɻ͜Ε͸ɺΠϯλʔωοτͷ‫ج‬ຊࢥ૝Ͱ͋Δ End-to-end principle ͷ֩ʹͳͬͯϧԽख๏ΛఏҊ͠ɺফඅిྗΛ௿‫͢ݮ‬Δసૹख๏ʹ͍ͭͯ‫ݕ‬౼ͨ͠ɻఏҊϞσϧ͸ MAC ϨϕϧͷϞσϧͱ

TCP ϨϕϧͷϞσϧͷ૊߹ͤʹΑ࣮ͬͯ‫ͨ͠ݱ‬ɻMAC
ϨϕϧͷϞσϧʹ͓͍ͯ͸ɺCSMA/CA ͷϑϨʔϜަ‫ͮ͘جʹ׵‬ফඅిྗϞσϧΛߏஙͨ͠ɻTCP Ϩϕϧʹ͓͍ͯ͸ɺTCP ͷಈ࡞ղੳʹ‫͍ͯͮج‬ফඅిྗϞ͍Δ΋ͷͰ͋Δ͕ɺΤϯυϗετͷߴ଎ԽʹΑΓɺͦσϧΛߏஙͨ͠ɻߏஙͨ͠ফඅిྗϞσϧʹ‫͍ͨͮج‬ͷదԠੑΛΑΓߴ౓ͳ΋ͷʹͰ͖ΔՄೳੑ͕े෼ʹ͋਺஋ղੳʹΑͬͯɺແઢ୺຤͔Β༗ઢωοτϫʔΫ্

Δɻຊ‫ڀݚ‬ςʔϚͰ͸ɺͦͷΑ͏ͳτϥϯεϙʔτϓʹ͋Δϗετʹରͯ͠ TCP σʔλసૹΛߦͬͨ৔߹

ϩτίϧͦͷ΋ͷʹؔ͢Δ‫ڀݚ‬ɺ͓ΑͼɺͦͷΑ͏ͳͷফඅిྗΛղੳతʹಋग़ՄೳͱͳΔɻ਺஋ղੳͷ݁τϥϯεϙʔτϓϩτίϧΛ༻͍ΔΞϓϦέʔγϣϯՌ͔Βɺύέοτͷૹड৴͕ͳ͍۠ؒʹ͓͍ͯཧ૝త

γεςϜͷੑೳ޲্ʹؔ͢Δ‫ʹڀݚ‬औΓ૊ΜͰ͍ΔɻʹεϦʔϓͨ͠৔߹ͱͦ͏Ͱͳ͍৔߹Λൺֱ͢Δ͜ͱ

[ؔ࿈ൃද࿦จ]ͰɺফඅిྗΛ࡟‫͢ݮ‬Δ͏͑ͰޮՌతͳཁҼΛ໌Β͔• ௕୩઒߶, “Πϯλʔωοτͷ᫔᫓੍‫ٕޚ‬ज़,” ੜ࢈ͱٕज़, vol. 64, no. 4, pp. 28–33, 2012.

ʹͨ͠ɻ͞Βʹຊ‫Ͱڀݚ‬͸ɺແઢ LAN ‫͚͓ʹڥ؀‬Δ TCP
σʔλసૹͷলిྗԽΛߦ͏ͨΊʹ SCTP τϯωϦϯ
άΛఏҊͨ͠ɻSCTP τϯωϦϯά͸ɺෳ਺ͷ TCP ϑϩʔΛແઢ୺຤ͱΞΫηεϙΠϯτؒʹཱ֬ͨ͠ 1 ຊ
ͷ SCTP ΞιγΤʔγϣϯʹू໿͢Δɻͦͯ͠ɺSCTP― 68 ―

4.4.2ແઢϚϧνϗοϓωοτϫʔΫʹ͓͚Δলిྗख๏͕ωοτϫʔΫੑೳʹ༩͑ΔӨ‫ؔ͢ʹڹ‬Δ‫ڀݚ‬ແઢ LAN ‫͋Ͱ֨ن‬Δ IEEE 802.11 ͸ෳ਺ͷσʔλϨʔτΛ࣋ͪɺͦΕͧΕʹ͍ͭͯɺූ߸Խํ๏ɺফඅ
ిྗɺ௨৴Մೳ‫Ͳͳ཭ڑ‬΋ҟͳΔɻ·ͨɺIEEE 802.11
ʹଘࡏ͢Δෳ਺ͷ‫֨ن‬͸ҟͳΔಛੑΛ࣋ͭɻ͞Βʹɺਤ 17: SCTP τϯωϦϯά

ಉ͡‫ͯͬ͋Ͱ֨ن‬΋ɺϋʔυ΢ΣΞߏ੒͕ҟͳΔͱɺ
ফඅిྗ΍௨৴Մೳ‫཭ڑ‬͸େ͖͘ҟͳΔɻͦͷͨΊɺτϯωϦϯά͸ू໿͞Εͨ TCP ϑϩʔͷύέοτΛ
όʔετతʹసૹ͢Δ͜ͱʹΑͬͯঢ়ଶભҠճ਺Λ࡟‫͠ݮ‬ɺεϦʔϓʹΑΔলిྗޮՌΛߴΊΔɻ·ͨɺఏҊํࣜͷলిྗޮՌΛධՁ͢ΔͨΊʹɺSCTP τϯωϦϯάͷফඅిྗϞσϧΛߏங͢ΔɻͦͷফඅిྗϞσϧʹ‫͍ͨͮج‬ফඅిྗղੳʹΑΓɺఏҊํ͕ࣜফඅ

IEEE 802.11 ແઢ LAN ʹ͓͚Δফඅిྗʹؔ͢Δٞ
࿦Λߦ͏ࡍʹ͸ɺ࣮ϋʔυ΢ΣΞͷ࢓༷Λߟྀ͢Δඞ
ཁ͕͋ΔɻҰํɺແઢٕज़ͷҰൠతͳಛੑͱͯ͠ɺૹ
৴ిྗɺ௨৴Մೳ‫ͼٴ཭ڑ‬ɺϏοτΤϥʔ཰ͳͲ͸ෳࡶʹؔ࿈͍ͯ͠Δɻ͢ͳΘͪɺIEEE 802.11 ແઢ LAN
Λ༻͍ͨແઢϚϧνϗοϓωοτϫʔΫʹ͓͍ͯ͸ɺిྗΛ࠷େ 70%ఔ౓࡟‫͖Ͱݮ‬Δ͜ͱΛࣔͨ͠ɻফඅిྗΛܾఆ͢Δཁૉ͕ଟ͘ଘࡏ͠ɺ͔ͭɺͦΕΒ[ؔ࿈ൃද࿦จ]͑ͨσʔλసૹΛߦ͏ͨΊʹ͸ɺ͜ΕΒͷཁૉͷؔ܎• ‫ڮ‬ຊ‫࢙ڡ‬, ௕୩઒߶, ଜాਖ਼޾, “ແઢ LAN ‫ʹڥ؀‬
͓͚Δ TCP σʔλసૹͷলిྗԽͷͨΊͷ SCTPτϯωϦϯάͷఏҊ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬Λ໌Β͔ʹ͠ɺσʔλ఻ૹ࣌ͷফඅిྗΛղੳతʹධͷཁૉ͕ෳࡶͳؔ܎Λ࣋ͭɻͦͷͨΊɺফඅిྗΛ཈

Ձ͢Δඞཁ͕͋Δɻใࠂ (IN2012-26), vol. 112, no. 88, pp. 13–18, വ‫ؗ‬ࢢຽձ‫ؗ‬, ๺ւಓ, June 2012.

• ‫ڮ‬ຊ‫࢙ڡ‬, ௕୩઒߶, ଜాਖ਼޾, “SCTP Λ༻͍ͨແઢ LAN ʹ͓͚Δ TCP σʔλసૹͷলిྗԽʹ
ؔ͢ΔҰ‫ݕ‬౼,” ిࢠ৘ใ௨৴ֶձ 2012 ιαΠΤςΟେձߨԋ࿦จू (BS-4-3), ෋ࢁେֶ, ෋ࢁ, Sep.
2012.

ਤ 18: Ϟσϧ• Masafumi Hashimoto, Go Hasegawa and Masayuki
Murata, “Exploiting SCTP multistreaming to reduceenergy consumption of multiple TCP Àows over a
WLAN,” in Proceedings of the 2nd International
Conference on Green Communications and Networking (GreeNETS 2012), 8 pages, Gandia, Spain,
Oct. 2012.
• Masafumi Hashimoto, “Transport-layer solutions
for achieving fairness and energy ef¿ciency in wireless LANs,” Ph.D. Thesis, Graduate School of Information Science and Technology, Osaka University,
Jan. 2013.
• Masafumi Hashimoto, Go Hasegawa and Masayuki
Murata, “SCTP tunneling: Flow aggregation andburst transmission to save energy for multiple TCPÀows over a WLAN,” submitted for publication.
• Masafumi Hashimoto, Go Hasegawa and Masayuki
Murata, “An analysis of energy consumption for
TCP data transfer with burst transmission over awireless LAN,” submitted for publication.

ͦ͜Ͱຊ‫͍͓ͯʹڀݚ‬͸ɺIEEE 802.11 ແઢ LANٕज़ʹ‫ͮ͘ج‬ແઢϚϧνϗοϓωοτϫʔΫʹ͓͚Δσʔλ఻ૹΛର৅ͱ͠ɺͦͷফඅిྗྔղੳΛߦͬͨɻ۩ମతʹ͸ɺIEEE 802.11 Ͱ༻͍ΒΕΔ MAC ϓϩτί
ϧͰ͋Δ CSMA/CA ͷৄࡉͳ‫ڍ‬ಈʹ‫͖ͮج‬ɺଞϊʔυ͔Βͷ‫ׯ‬বʹΑΔ‫ڍ‬ಈͷมԽΛߟྀ͠ɺ1 ϗοϓͷσʔλ఻ૹʹ͓͚ΔফඅిྗྔΛಋग़ͨ͠ɻͦͷ‫ޙ‬ɺૹड৴୺຤ؒͰϚϧνϗοϓʹΑͬͯσʔλΛ఻ૹͨ͠ࡍ
ͷ૯ిྗྔΛ໌Β͔ʹͨ͠ɻ͞Βʹɺ࣮ࡏ͢Δ IEEE

802.11 ແઢ LAN ͷωοτϫʔΫΠϯλʔϑΣʔεσόΠεͷফඅిྗσʔλΛར༻͠ɺղੳ݁ՌΛ༻͍ͨফඅిྗྔͷධՁΛߦͬͨɻධՁͷ݁ՌɺωοτϫʔΫʹ͓͚ΔϑϨʔϜଛࣦ཰͕౳͍͠৔߹ʹ͸ɺΑΓߴ͍σʔλϨʔτΛ࢖͏͜ͱͰɺΑΓখ͍͞ফඅిྗྔ
͕ಘΒΕΔ͕ɺ௿͍σʔλϨʔτΛ࢖͏΄͏͕ফඅి
ྗྔΛ཈͑Δ͜ͱ͕ग़དྷΔ৔߹͕͋Δ͜ͱΛ໌Β͔ʹͨ͠ɻ

― 69 ―

ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺϦϯΫͷ෺ཧଳҬΛಈతʹมԽ
ͤ͞Δলిྗϧʔλ͕ωοτϫʔΫʹଘࡏ͢Δ‫ʹڥ؀‬
͓͚ΔɺΤϯυؒར༻ՄೳଳҬ‫ܭ‬ଌख๏ Pathload ͷੑೳධՁΛߦ͍ɺར༻ՄೳଳҬ‫ܭ‬ଌͱলిྗϧʔλ͕૬‫͢΅ٴʹޓ‬Ө‫ڹ‬Λ໌Β͔ʹ͢Δɻ·ͨɺPathload ͕লਤ 19: MAC ϑϨʔϜͷ΍ΓͱΓిྗϧʔλʹ༩͑ΔτϥώοΫෛՙΛղੳతʹ໌Β͔ʹͨ͠ɻͦͷ݁Ռɺ‫ܭ‬ଌෛՙʹΑͬͯলిྗϧʔλ͕෺ཧଳҬΛ૿Ճͤͨ͞৔߹ɺলిྗಈ࡞தͷ෺ཧଳҬ[ؔ࿈ൃද࿦จ]• Wataru Toorisaka, “Power consumption analysis ofdata transmission over IEEE 802.11 multi-hop networks,” Master’s Thesis, Graduate School of Information Science and Technology, Osaka University,
Feb. 2013.

Λ‫ج‬४ͱͨ͠ར༻ՄೳଳҬΛ‫ܭ‬ଌ͢Δ͜ͱ͕ࠔ೉ʹͳΔ͜ͱΛࣔͨ͠ɻ·ͨɺͦͷ݁Ռʹ‫͍ͯج‬ɺ‫ܭ‬ଌख๏ͷύϥϝʔλΛௐ੔͢Δ͜ͱʹΑΓɺলిྗϧʔλʹӨ‫ڹ‬Λ༩͑ͳ͍‫ܭ‬ଌΛߦ͏͜ͱ͕ՄೳͰ͋Δ͜ͱΛࣔͨ͠ɻ• ௨ࡕߤ, ௕୩઒߶, ଜాਖ਼޾, “IEEE 802.11 ϚϧνϗοϓωοτϫʔΫʹ͓͚Δ‫ׯ‬বΛߟྀͨ͠σʔλ఻ૹ࣌ͷফඅిྗྔղੳ,” ిࢠ৘ใ௨৴ֶձٕज़
‫ڀݚ‬ใࠂ (NS2012-168), vol. 112, no. 464, pp. 19–

24, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar. 2013.
4.4.3

লిྗϧʔλ͕ଘࡏ͢Δ‫͚͓ʹڥ؀‬Δར༻ՄೳੑଳҬ‫ܭ‬ଌख๏ͷվળʹؔ͢Δ‫ڀݚ‬ۙ೥ɺωοτϫʔΫτϥώοΫͷ૿Ճʹ൐͏ωοτਤ 21: ‫ܭ‬ଌύέοτૹ৴ִؒϫʔΫ‫ثػ‬ͷফඅిྗͷ૿Ճ͕໰୊ͱͳ͍ͬͯΔɻ‫ܦ‬ࡁ࢈‫ۀ‬লͷࢼࢉʹΑΔͱɺࠃ಺ͷϧʔλΛ‫ؚ‬ΉωοτϫʔΫ‫ثػ‬ͷ૯ফඅిྗ͸ɺ2006 ೥౓ͷ໿ 80 ԯ kWh[ؔ࿈ൃද࿦จ]͔Β 2025 ೥౓ʹ͸໿ 1033 ԯ kWh ͱɺ͓Αͦ 13 ഒʹ• Daisuke Kobayashi, Go Hasegawa and Masayuki
Murata, “Evaluation and improvement of end-to-end
bandwidth measurement method for power-saving

૿Ճ͢Δͱࢦఠ͞Ε͍ͯΔɻ͜ͷ໰୊ʹରͯ͠ɺωοτϫʔΫෛՙʹԠͯ͡ϧʔλॲཧੑೳ΍ϦϯΫ଎౓ͷಈతͳมߋΛߦ͏͜ͱʹΑΓɺলిྗΛਤΔٕज़ʹؔrouters,” in Proceedings of the 2012 International
Communications Quality and Reliability Workshop

͢Δ‫ߦ͕ڀݚ‬ΘΕ͍ͯΔɻ͔͠͠ɺͦͷΑ͏ͳলిྗ
ϧʔλ͕ωοτϫʔΫ಺ʹଘࡏ͢ΔͱɺωοτϫʔΫ

(IEEE CQR 2012), 6 pages, San Diego, USA, May
2012. (Best Paper Award)ෛՙʹԠͯ͡Τϯυ୺຤ؒύεͷ෺ཧଳҬ͕มಈ͢Δ
ͨΊɺैདྷఏҊ͞Ε͍ͯΔΤϯυؒར༻ՄೳଳҬ‫ܭ‬ଌख๏ͷ‫ܭ‬ଌਫ਼౓͕ྼԽ͢Δͱߟ͑ΒΕΔɻ·ͨɺଳҬ

4.4.4

ωοτϫʔΫύεͷෳ਺۠ؒͷར༻ՄೳଳҬͷಉ࣌‫ܭ‬ଌʹؔ͢Δ‫ڀݚ‬‫ܭ‬ଌͷͨΊʹൃੜ͢ΔωοτϫʔΫෛՙʹΑΓɺলిΤϯυ୺຤ؒʹ͓͚Δσʔλసૹͷࡍʹɺύεͷརྗϧʔλ͕े෼ʹলిྗޮՌΛൃ‫͍ͳ͖Ͱش‬Մೳੑ͕༻ՄೳଳҬΛࢦඪͱͯ͠༻͍Δ͜ͱͰɺ᫔᫓ͷ‫ݕ‬஌ɺ͋Δɻ௨৴Ϩʔτͷ੍‫ޚ‬ɺΦʔόϨΠωοτϫʔΫʹ͓͚Δ
τϙϩδ੍‫ޚ‬ɺ‫ܦ‬࿏੍‫ޚ‬΍ϚϧνύεసૹͳͲͷ༷ʑͳωοτϫʔΫ੍‫͕ޚ‬ՄೳͱͳΔɻͦͷͨΊɺΤϯυ୺຤ؒύεͷར༻ՄೳଳҬΛ‫ܭ‬ଌ͢Δ͜ͱ͸ॏཁͰ͋Δɻैདྷͷ୺຤ؒύεͷར༻ՄೳଳҬͷ‫ܭ‬ଌٕज़͸ɺϘτϧωοΫ۠ؒͷར༻ՄೳଳҬͷ஋ͷΈΛ೺Ѳ͢Δ͜ͱ͕Ͱ͖Δ͕ɺҰํɺϘτϧωοΫ۠ؒͦͷ΋ͷͷಛఆ΍Τϯυ୺຤ؒύεͷෳ਺Օॴͷར༻ՄೳଳҬͷ‫ܭ‬ଌΛߦ͏͜ͱ͸Ͱ͖ͳ͍ɻ͔͠͠ɺͨͱ͑͹ແઢωοਤ 20: ධՁ݁ՌτϫʔΫͱ༗ઢωοτϫʔΫͳͲωοτϫʔΫಛੑ͕ҟͳΔ͕۠ؒΤϯυ୺຤ؒύε্ʹࠞࡏ͍ͯ͠Δ৔߹ʹɺͦΕͧΕͷωοτϫʔΫͷར༻ՄೳଳҬͷ‫ܭ‬ଌ͕

― 70 ―

San Diego, USA, May 2012.

ՄೳͱͳΕ͹ɺແઢωοτϫʔΫͳͲύέοτ‫ޡ‬Γͷଟ͍‫ʹڥ؀‬Ԡͯ͡௨৴ϨʔτΛ௿͘ઃఆ͢ΔͳͲͷɺωοτϫʔΫ‫ʹڥ؀‬Ԡ੍ͨ͡‫ޚ‬Λߦ͏͜ͱ͕Ͱ͖Δɻ

4.4.5

ిྗফඅΛߟྀͨ͠޿Ҭ෼ࢄίϯϐϡʔςΟϯά‫ؔ͢ʹڥ؀‬Δ‫ڀݚ‬େ‫ن‬໛σʔληϯλ΁ͷ৘ใγεςϜͷू໿͕ਐΉͱɺΑΓେྔͷσʔλ͕޿ҬωοτϫʔΫΛհͯ͠ૹड৴͞Εɺσʔλసૹʹඅ΍͞ΕΔΤωϧΪʔ͕૿Ճ
͢Δɻ͜Εʹର͠ɺτϥώοΫ࡟‫ݮ‬ɾ‫ॴہ‬Խ‫ػ‬ೳΛ΋ͭαʔόΛωοτϫʔΫ্ʹ෼ࢄ഑ஔ͢Δ͜ͱͰɺγεςϜશମͰͷলిྗԽ͕ՄೳʹͳΔɻຊ‫͍͓ͯʹڀݚ‬͸ɺΞϓϦέʔγϣϯɺൃੜ͢ΔτϥώοΫɺ͓ΑͼσʔλసૹΛߦ͏ͨΊͷωοτϫʔΫΛ‫ؚ‬Ίͨγες
ਤ 22: ෳ਺۠ؒͷಉ࣌‫ܭ‬ଌϜશମͷϞσϧΛߏஙͨ͠ɻ·ͨɺϧʔλ͓ΑͼαʔόͷిྗফඅϞσϧΛ࡞੒͠ɺγεςϜͷిྗফඅྔ

ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺΤϯυ୺຤ؒͷύε্ʹ͓͚Δ

ΛఆࣜԽ͢Δɻ͞Βʹɺ෼ࢄαʔόΛઃஔ͠సૹτϥෳ਺͔ͭ೚ҙͷ۠ؒʹ͓͚Δར༻ՄೳଳҬΛಉ࣌ʹ‫ܭ‬ώοΫΛ࡟‫͖ͱͨ͠ݮ‬ͷిྗফඅ࡟‫ྔݮ‬ΛධՁ͢Δɻ

ଌ͢Δख๏ʹ͍ͭͯ‫ݕ‬౼ͨ͠ɻैདྷͷར༻ՄೳଳҬͷධՁͷ݁Ռɺ෼ࢄαʔόઃஔ਺ͷ૿Ճʹ൐͍ిྗফඅ

‫ܭ‬ଌख๏͸ૹ৴୺຤͕ड৴୺຤ʹ޲͚ͯ‫ܭ‬ଌ༻ύέοྔ͸࠷େͰ໿ 20%‫ݮ‬গ͢Δ͕ɺҰఆ୆਺Λ௒͑ΔͱɺτΛૹΔࡍʹɺύέοτͷૹ৴ִؒΛ༷ʑʹมԽͤ͞ɺ

τϥώοΫ࡟‫ʹݮ‬ΑΔిྗফඅͷ‫ݮ‬গΑΓ෼ࢄαʔόड৴୺຤ʹ͓͚Δड৴ִؒΛ‫͢࡯؍‬Δ͜ͱͰར༻Մೳ

ͷ௥Ճʹ൐͏ిྗফඅͷ૿Ճͷํ͕େ͖͍ͨΊɺશମଳҬΛ‫ܭ‬ଌ͢Δɻͦ͜ͰɺఏҊख๏ʹ͓͍ͯ͸ɺύέοͱͯ͠૿Ճ܏޲ʹస͡Δ͜ͱΛ໌Β͔ʹͨ͠ɻτͷૹ৴ִؒͷ੍‫ํޚ‬๏Λվળ͠ɺ͔ͭɺΤϯυ୺຤ؒύε্ͷϧʔλʹ͓͍ͯ‫ه‬࿥͞ΕΔύέοτͷૹड৴࣌ࠁΛར༻͢Δ͜ͱʹΑͬͯɺ୺຤ؒͷύε্ʹ͓͚Δ೚ҙͷ۠ؒͷར༻ՄೳଳҬΛ‫ܭ‬ଌ͢ΔɻఏҊํࣜͷੑೳධՁ͸ɺ؆қతͳγϛϡϨʔγϣϯʹΑͬͯߦͬͨɻͦͷ݁Ռɺૹ৴୺຤ʹ͍ۙωοτϫʔΫ۠ؒΑΓɺड৴୺຤ʹ͍ۙωοτϫʔΫ۠ؒͷར༻ՄೳଳҬ͕େ͖͍৔߹ʹ͓͍ͯ΋ɺͦΕͧΕͷ۠ؒͷར༻ՄೳଳҬΛ‫ܭ‬ଌ͢Δ͜ͱ͕ՄೳͰ͋Δ͜ͱΛ֬ೝͨ͠ɻ

ਤ 24: ޿Ҭ෼ࢄίϯϐϡʔςΟϯά‫ڥ؀‬[ؔ࿈ൃද࿦จ]• Yukio Ogawa, Go Hasegawa and Masayuki Murata,“Power consumption evaluation of distributed computing network considering traf¿c locality,” IEICE
Transactions on Communications, vol. E95-B, no. 8,
pp. 2538–2548, Aug. 2012.

ਤ 23: ධՁ݁Ռ4.4.6
[ؔ࿈ൃද࿦จ]ੜ෺ωοτϫʔΫಛੑʹ‫ͮ͘ج‬৘ใωοτϫʔΫγεςϜΞʔΩςΫνϟʹؔ͢Δ‫ڀݚ‬• Kazumasa Koitani, Go Hasegawa and Masayuki
Murata, “Measuring available bandwidth of multipleۙ೥ɺੜ෺ωοτϫʔΫͷಛੑΛ৘ใωοτϫʔΫΞʔΩςΫνϟʹద༻͢Δ‫ߦ͕ڀݚ‬ΘΕ͍ͯΔɻྫ͑

parts on end-to-end network path,” in Proceedings ofthe 2012 International Communications Quality and͹ɺΞυϗοΫωοτϫʔΫʹ͓͚ΔɺΞϦͷशੑΛ

Reliability Workshop (IEEE CQR 2012), 6 pages,͠ɺͦΕΒͷ‫ڀݚ‬ͷଟ͘͸ɺωοτϫʔΫ૚͋Δ͍͸ར༻ͨ͠‫ܦ‬࿏੍‫ޚ‬ख๏ʹؔ͢Δ‫͕͋Ͳͳڀݚ‬Δɻ͔͠

― 71 ―

ࠂ, Feb. 2013.

ͦΕΑΓԼҐ૚ͷϓϩτίϧ΍ΞʔΩςΫνϟʹண໨σϧΛ༻͍ͨࣗ‫ݾ‬దԠత‫ܦ‬࿏੍‫ޚ‬ख๏ͳͲͷఏҊ͕ଘ• Ԭ࡚୓࿠, ௕୩઒߶, ଜాਖ਼޾, “ੜ෺ωοτϫʔΫͷॖୀಛੑʹ‫ڧؤͮ͘ج‬ੑΛ༗͢Δ৘ใωοτϫʔΫγεςϜͷ৑௕Խख๏,” ిࢠ৘ใ௨৴ֶ

ࡏ͢Δ͕ɺͦͷ਺͸ԼҐ૚ϓϩτίϧ΁ͷద༻ྫͱൺ

ձٕज़‫ڀݚ‬ใࠂ (NS2012-267), vol. 112, no. 464,ֱͯ͠΋গͳ͘ɺΞϓϦέʔγϣϯαʔϏεͦͷ΋ͷ

pp. 595–600, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar.

ʹର͢Δద༻ྫ͸‫͋Ͱك‬Δɻ͕ͨͬͯ͠ɺΑΓϢʔβ2013.

͍ͯ͠Δɻ্Ґ૚ϓϩτίϧʹؔ͢Δ‫ͯ͠ͱྫڀݚ‬ɺΦʔόϨΠωοτϫʔΫʹ͓͍ͯɺΞτϥΫλબ୒Ϟʹ͍ۙΞϓϦέʔγϣϯαʔϏεʹରͯ͠ɺੜ෺ωοτϫʔΫͷಛੑΛద༻͢Δ͜ͱʹΑΓɺ৘ใγεςϜ4.4.7

αʔϏεԽʹؔ͢Δ‫ڀݚ‬શମͷ‫ڧؤ‬ੑΛ֬อ͢Δ͜ͱ͸ॏཁͰ͋Δͱߟ͑ΒΕΔɻϦΞϧλΠϜ Web ٕज़ʹ‫ ͮ͘ج‬HEMS ͷ ASP

Ոి‫ثػ‬ͷলిྗԽͷ෼໺ʹ͓͍ͯ HEMS (HomeEnergy Management System) ͕লΤωԽͷҰͭͷΩʔٕज़ͱͯ͠஫໨͞Ε͓ͯΓɺHEMS ʹ༻͍ΒΕΔϓϩ
τίϧͱͯ͠ɺ೔ຊͰ͸ ECHONETɺECHONET Liteͷ‫ݕ‬౼‫ٴීͼٴ‬ଅਐ͕ਤΒΕ͍ͯΔɻ‫ ࡏݱ‬HEMS ͸

HAN (Home Area Network) ಺ʹดͨ͡γεςϜͱ࣮ͯ͠૷͞Ε͍ͯΔ͕ɺίετͷ௿‫ݮ‬ΛਤΔͨΊͷํ๏ͱͯ͠ɺՈి੡඼Λ WoT (Web of Things) Խ͠ɺHEMSΛΫϥ΢υ‫ ܕ‬ASP αʔϏεͱͯ͠ఏ‫͢ڙ‬Δ͜ͱ͕ߟ͑ΒΕΔɻͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺΫϥ΢υ‫ ܕ‬ASP αʔϏεͱͯ͠ HEMS Λ࣮‫͢ݱ‬ΔͨΊʹඞཁͱͳΔɺՈి੡඼ͷਤ 25: ੜ෺ωοτϫʔΫͷॖୀಛੑ

WoT Խʹ͍ͭͯ‫ݕ‬౼Λߦͬͨɻ۩ମతʹ͸ɺશମͷΞʔΩςΫνϟɺHEMS ͷ࣮‫ʹݱ‬ඞཁͱͳΔ૒ํ޲

ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɺੜ෺ωοτϫʔΫͷॖୀಛੑΛԠ༻ͨ͠ɺ৘ใωοτϫʔΫγεςϜʹ͓͚Δ‫ͳڧؤ‬Web αʔϏεͷ࣮૷ํ๏ͷൺֱ‫ݕ‬౼݁ՌΛࣔͨ͠ɻ͞
ΒʹɺWebSocket Λ༻͍ͯɺLED র໌Λԕִίϯτ৑௕Խख๏ΛఏҊͨ͠ɻఏҊख๏͸ɺैདྷͷ৑௕Խखϩʔϧ͢ΔϓϩτλΠϓ࣮૷Λࣔ͠ɺఏҊγεςϜ͕๏ʹ‫ݟ‬ΒΕΔ 1 ର 1 ͋Δ͍͸ 1 ରଟͷ৑௕Խ΍ɺಉे෼࣮༻తͰ͋Δ͜ͱΛࣔͨ͠ɻҰͷ‫ػ‬ೳ‫܈‬Λ࣮‫ݱ‬Մೳͳ‫ثػ‬Λෳ਺४උ͢Δଟରଟ
ͷ৑௕ԽͰ͸ͳ͘ɺγεςϜશମͱͯ͠ඞཁͱͳΔ৑௕ࢿ‫ݯ‬Λอ࣋͢ΔͨΊʹɺ‫ݶ‬ΒΕͨ‫ػ‬ೳ‫܈‬Λ࣮‫͖Ͱݱ‬Δ‫ثػ‬Λଟ਺༻ҙ͠ɺͦΕΒ͕࣮‫͖Ͱݱ‬Δ‫ػ‬ೳʹ෦෼తͳॏෳؔ܎Λ࣋ͨͤΔ͜ͱʹΑΓɺγεςϜશମͰଟରଟͷ৑௕ԽΛ࣮‫͢ݱ‬Δɻຊใࠂʹ͓͍ͯ͸ɺ͜ͷΑ͏ͳ৑௕Խख๏Λద༻Մೳͳ৘ใωοτϫʔΫγεςϜͷྫΛ‫͛ڍ‬Δͱͱ΋ʹɺγϛϡϨʔγϣϯධՁʹΑͬͯͦͷ༗ޮੑΛ໌Β͔ʹ͢ΔɻੑೳධՁͷ݁Ռɺ୯७ͳ৑௕ԽΛߦ͏ख๏ʹൺ΂ͯɺఏҊख๏ʹ‫ͮ͘ج‬ਤ 26: HEMS ͷ ASP αʔϏεԽ৘ใωοτϫʔΫγεςϜ͕ߴ͍‫ڧؤ‬ੑΛ࣋ͭ͜ͱΛࣔͨ͠ɻ[ؔ࿈ൃද࿦จ][ؔ࿈ൃද࿦จ]• ௕୩઒߶, ଜాਖ਼޾, “ੜ෺ωοτϫʔΫͷॖॏੑɾ৑௕ੑʹ‫ͮ͘ج‬৘ใωοτϫʔΫઃ‫ؔ͢ʹܭ‬ΔҰ
‫ݕ‬౼,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (CQ2012-• ૿ඌ߶, தଜೋ࿕, দԬໜొ, ௕୩઒߶, ଜాਖ਼޾,22), vol. 112, no. 119, pp. 29–34, Ѫඤେֶ, Ѫඤ,July 2012.
• Ԭ࡚୓࿠, “ੜ෺ωοτϫʔΫͷॖୀಛੑʹ‫ͮ͘ج‬‫ڧؤ‬ੑΛ༗͢Δ৘ใωοτϫʔΫγεςϜ৑௕Խख๏,” େࡕେֶ‫ֶ޻ૅج‬෦৘ใՊֶՊಛผ‫ڀݚ‬ใ

― 72 ―

দా࿨ߒ, “ϦΞϧλΠϜ Web ٕज़ʹΑΔ HEMSαʔϏεΫϥ΢υԽͷ‫ݕ‬౼,” ిࢠ৘ใ௨৴ֶձٕ
ज़‫ڀݚ‬ใࠂ (NS2012-117), vol. 112, no. 350, pp. 1–

6, Ѫඤେֶ, Ѫඤ, Dec. 2012.

ࣾձߩ‫ؔ͢ʹݙ‬Δ‫੷ۀ‬

5.2.2

5.1

‫ڭ‬ҭ໘ʹ͓͚Δࣾձߩ‫ݙ‬

2012 ೥౓ʹฤूʹ‫ܞ‬Θͬͨ࿦จࢽΛྻ‫͢ڍ‬Δɻ
• Editorial Advisory Board, International Journal On

5.1.1

ֶ֎‫׆‬ಈ

Advances in Systems and Measurements ʢ2009 ೥ʙɺ௕୩઒ʣ

• ৘ใՊֶʹؔ͢Δ࢈ֶ࿈‫ܞ‬Λਪਐ͢Δ૊৫ IT ࿈‫ܞ‬ϑΥʔϥϜ OACIS ͷ‫ࣄװ‬ɺ‫ࠤิࣄװ‬Λ୲౰͠• Editorial Board Member, International Journal On
Advances in Networks and Services ʢ2009 ೥ʙɺ௕୩઒ʣͨɻʢ2009 ೥ 4 ݄ʙ2013 ೥ 3 ݄ɺத໺ɺ௕୩઒ɺ୩‫ޱ‬ʣ• େࡕ໌੕ֶԂ ໌੕ߴ౳ֶߍʢେࡕ෎େࡕࢢఱԦ
ࣉ۠ʣͰ 1 ೥ੜ͔Β 3 ೥ੜ·Ͱͷੜె 37 ໊Λର• Editorial Board Member, ISRN Communications
and Networking ʢ2010 ೥ʙɺ௕୩઒ʣ

৅ͱͯ͠ग़ுߨٛΛߦͬͨɻ
ʢ2012 ೥ 7 ݄ 20 ೔ɺ• Editorial Board Member, International Journal Onத໺ɺ௕୩઒ɺ୩‫ޱ‬ʣ

5.1.2

Advances in Internet Technology ʢ2012 ೥ʙɺ୩‫ڀݚ‬෦໳ެ։‫ޱ‬ʣ• େࡕେֶ͍ͪΐ͏ࡇʹͯ‫ڀݚ‬෦໳ެ։Λߦͬͨɻ
10:00ʙ16:00 ͷؒɺϢϏΩλεωοτϫʔΫʹؔ͢ΔύωϧలࣔΛߦͬͨɻ251 ໊ͷདྷ๚ऀ͕͋ͬ
ͨɻʢ2012 ೥ 4 ݄ 30 ೔ɺ௕୩઒ɺ୩‫ޱ‬ʣ• େࡕେֶ‫ֶ޻ૅج‬෦େֶઆ໌ձʹͯߴߍੜ͓Αͼͦͷอ‫ऀޢ‬Λର৅ͱͨ͠‫ڀݚ‬෦໳ެ։Λߦͬͨɻ62 ໊ͷདྷ๚ऀ͕͋ͬͨɻ
ʢ2012 ೥ 8 ݄ 10 ೔ɺ୩‫ޱ‬ʣ
5.2• Editorial Board Member, International Journal On
Advances in Networks and Services ʢ2012 ೥ʙɺ
୩‫ޱ‬ʣ
5.2.3

ࠃࡍձٞ΁ͷࢀը2012 ೥౓ʹҕһ͓Αͼҕһ௕ͱͯ͠ӡӦʹࢀը͠
ͨɺ͋Δ͍͸ࢀըதͷࠃࡍձٞΛྻ‫͢ڍ‬Δɻֶձ‫׆‬ಈ

5.2.1

࿦จࢽฤू

ࠃ಺ֶձʹ͓͚Δ‫׆‬ಈ

2012 ೥౓ʹӡӦʹࢀըͨ͠ࠃ಺ֶձΛྻ‫͢ڍ‬Δɻ
• ը૾ిࢠֶձ ஍ํཧࣄʢ2010 ೥ 6 ݄ʙɺத໺ʣ
• ిࢠ৘ใ௨৴ֶձ ௨৴ιαΠΤςΟ ૯຿‫ࣄװ‬
ʢ2012 ೥ 4 ݄ʙɺ௕୩઒ʣ
• ిࢠ৘ใ௨৴ֶձ ωοτϫʔΫγεςϜ‫ڀݚ‬ձઐ໳ҕһʢ2011 ೥ 5 ݄ʙɺ௕୩઒ʣ
• ৘ใॲཧֶձ ϚϧνϝσΟΞ௨৴ͱ෼ࢄॲཧ‫ݚ‬‫ڀ‬ձ ӡӦҕһʢ2010 ೥ 4 ݄ʙɺ௕୩઒ʣ
• ిࢠ৘ใ௨৴ֶձ ΞυϗοΫωοτϫʔΫ‫ڀݚ‬ձઐ໳ҕһʢ2012 ೥ 5 ݄ʙɺ୩‫ޱ‬ʣ• ৘ใॲཧֶձ ϞόΠϧίϯϐϡʔςΟϯάͱϢϏΩλε௨৴‫ڀݚ‬ձ ӡӦҕһʢ2011 ೥ 4 ݄ʙɺ୩‫ޱ‬ʣ• ը૾ిࢠֶձ 264 ճ‫ڀݚ‬ձ ࠲௕ʢ2013 ೥ 2 ݄։࠵ɺ୩‫ޱ‬ʣ• ిࢠ৘ใ௨৴ֶձ ωοτϫʔΫγεςϜ‫ڀݚ‬ձ࠲௕ʢ2013 ೥ 3 ݄։࠵ɺ୩‫ޱ‬ʣ• ৘ใॲཧֶձ ୈ 65 ճϞόΠϧίϯϐϡʔςΟϯάͱϢϏΩλε௨৴‫ڀݚ‬ձ ࠲௕ʢ2013 ೥ 3 ݄։࠵ɺ୩‫ޱ‬ʣ• ৘ใॲཧֶձ ୈ 66 ճϞόΠϧίϯϐϡʔςΟϯάͱϢϏΩλε௨৴‫ڀݚ‬ձ ϓϩάϥϜҕһʢ2013• Publicity Co-Chair, IEEE/IFIP Network Operations
and Management Symposium (IEEE/IFIP NOMS
2012).ʢ2012 ೥ 4 ݄։࠵ɺ௕୩઒ʣ
• TPC Member1 , IEEE/IFIP Network Operations andManagement Symposium (IEEE/IFIP NOMS 2012).
ʢ2012 ೥ 4 ݄։࠵ɺ௕୩઒ʣ

• TPC Member, The 3rd Green Wireless Communications and Networks (GreeNet).ʢ2012 ೥ 5 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, The 2012 International Communications Quality and Reliability Workshop (IEEE CQR2012).ʢ2012 ೥ 5 ݄։࠵ɺ௕୩઒ʣ
• Advisory Chair, The 7th International Conferenceon Internet Monitoring and Protection (ICIMP
2012).ʢ2012 ೥ 5–6 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, The 7th International Conference on
Internet Monitoring and Protection (ICIMP 2012).
ʢ2012 ೥ 5–6 ݄։࠵ɺ௕୩઒ʣ

• Advisory Chair, The 8th Advanced International
Conference on Telecommunications (AICT 2012).
ʢ2012 ೥ 5–6 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, The 8th Advanced International Conference on Telecommunications (AICT 2012).ʢ2012
೥ 5–6 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, IEEE International Conference on
Communications (IEEE ICC 2012).ʢ2012 ೥ 6 ݄

೥ 5 ݄։࠵ɺ୩‫ޱ‬ʣ
1 Technical Program Committee Member― 73 ―

agement Symposium (IEEE/IFIP NOMS 2012).

։࠵ɺ௕୩઒ʣ

• TPC Member, The 4th International Conference on
Emerging Network Intelligence (EMERGING 2012).
ʢ2012 ೥ 9 ݄։࠵ɺ௕୩઒ʣ

ʢ2012 ೥ 4 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 7th International Conference on
Digital Telecommunications (ICDT 2012).ʢ2012 ೥
4–5 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 17th IEEE International Workshop on Computer-Aided Modeling Analysis and• TPC Member, The 8th Advanced International Con-

Design of Communication Links and Networks(IEEE CAMAD 2012).ʢ2012 ೥ 9 ݄։࠵ɺ௕୩઒ʣ

ference on Telecommunications (AICT 2012).ʢ2012
೥ 5–6 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 2012 IEEE Global Communications Conference (IEEE GLOBECOM 2012).ʢ2012• Advisory Chair, The 6th International Conference
on Mobile Ubiquitous Computing, Systems, Services

೥ 12 ݄։࠵ɺ௕୩઒ʣ

• TPC Member, The 12th International Conference on

and Technologies (UBICOMM 2012).ʢ2012 ೥ 9 ݄։࠵ɺ୩‫ޱ‬ʣ

Networks (ICN 2013).ʢ2013 ೥ 1–2 ݄։࠵ɺ௕୩
઒ʣ• TPC Member, The 6th International Conference on
Mobile Ubiquitous Computing, Systems, Services• TPC Member, The 9th International Conference on
Networking and Services (ICNS 2013).ʢ2013 ೥ 3

and Technologies (UBICOMM 2012).ʢ2012 ೥ 9 ݄։࠵ɺ୩‫ޱ‬ʣ݄։࠵ɺ௕୩઒ʣ

• TPC Member, The 13th IFIP/IEEE International
Symposium on Integrated Network Management(IEEE IM 2013).ʢ2013 ೥ 5 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, The 2013 International Communications Quality and Reliability Workshop (IEEE CQR2013).ʢ2013 ೥ 5 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, IEEE International Conference on
Communications (IEEE ICC 2013).ʢ2013 ೥ 6 ݄։࠵ɺ௕୩઒ʣ

• TPC Member, The 5th International Conference
on Communications, Computers and Applications(MIC-CCA 2012), Ubiquitous Computing and Communications (UCC) Track.ʢ2012 ೥ 10 ݄։࠵ɺ୩‫ޱ‬ʣ
• Session Chair, The 2012 IEEE International Conference on Computer Systems and Industrial Informatics (ICCSII 2012).ʢ2012 ೥ 12 ݄։࠵ɺ୩‫ޱ‬ʣ
• Reviewer, The 15th International Conference on Advanced Communications Technology (ICACT 2013).
ʢ2013 ೥ 1 ݄։࠵ɺ୩‫ޱ‬ʣ• Advisory Chair, The 8th International Conferenceon Internet Monitoring and Protection (ICIMP
2013).ʢ2013 ೥ 6 ݄։࠵ɺ௕୩઒ʣ

• TPC Member, The 8th International Conference on
Systems (ICONS 2013).ʢ2013 ೥ 1–2 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 8th International Conference on
Internet Monitoring and Protection (ICIMP 2013).

• TPC Member, The 3rd International Conference on
Pervasive and Embedded Computing and Communi-

ʢ2013 ೥ 6 ݄։࠵ɺ௕୩઒ʣ

• Advisory Chair, The 9th Advanced International
Conference on Telecommunications (AICT 2013).
ʢ2013 ೥ 6 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, The 9th Advanced International Conference on Telecommunications (AICT 2013).ʢ2013೥ 6 ݄։࠵ɺ௕୩઒ʣ

• TPC Member, The New Internet Symposium (NIS2013).ʢ2013 ೥ 8 ݄։࠵ɺ௕୩઒ʣ
• TPC Member, The 5th International Conference on
Emerging Network Intelligence (EMERGING 2013).
ʢ2013 ೥ 9 ݄։࠵ɺ௕୩઒ʣ

• TPC Member, The 2013 IEEE Global Communications Conference (IEEE GLOBECOM 2013).ʢ2013೥ 12 ݄։࠵ɺ௕୩઒ʣ

• Reviewer, IEEE/IFIP Network Operations and Man-― 74 ―

cation Systems (PECCS 2013).ʢ2013 ೥ 2 ݄։࠵ɺ୩‫ޱ‬ʣ
• Advisory Chair, The 9th International Conference
on Networking and Services (ICNS 2013).ʢ2013 ೥
3 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 9th International Conference on
Networking and Services (ICNS 2013).ʢ2013 ೥ 3݄։࠵ɺ୩‫ޱ‬ʣ

• TPC Member, The 27th IEEE International Conference on Advanced Information Networking andApplications (IEEE AINA 2013), Sensor Networks
Track.ʢ2013 ೥ 3 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 3rd International Conference on
Communications and Signal Processing (MIC-CSP
2013), Communication Networks and Applications(CNA) Track.ʢ2013 ೥ 4 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 8th International Conference on
Digital Telecommunications (ICDT 2013).ʢ2013 ೥

5.3.2

ֶ֎Ͱͷߨԋ

• 2012 ౓ OACIS ৘ใՊֶߨ࠲ʢલ‫ظ‬ʣʹ͓͍ͯʮίϯϐϡʔλωοτϫʔΫೖ໳ʯͱ୊ͨ͠ߨԋΛߦͬ

4 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 9th Advanced International Con-

ͨɻʢ2012 ೥ 8 ݄ 24 ೔ɺத໺ʣ

ference on Telecommunications (AICT 2013).ʢ2013೥ 6 ݄։࠵ɺ୩‫ޱ‬ʣ

• 2012 ౓ OACIS ৘ใՊֶߨ࠲ʢલ‫ظ‬ʣʹ͓͍ͯʮωοτϫʔΫ‫ج‬ຊٕज़ʯͱ୊ͨ͠ߨԋΛߦͬͨɻ• TPC Member, The 1st International Conference on
Cognitive and Sensor Networks (MIC-CSN 2013),

ʢ2012 ೥ 9 ݄ 7 ೔ɺ௕୩઒ʣ

• 2012 ౓ OACIS ৘ใՊֶߨ࠲ʢ‫ظޙ‬ʣʹ͓͍ͯʮϞόΠϧωοτϫʔΫαʔϏε֓࿦ʯͱ୊ͨ͠ߨԋΛߦͬͨɻʢ2012 ೥ 12 ݄ 7 ೔ɺத໺ʣ

Wireless Sensor Networks (WSN) Track.ʢ2013 ೥
9 ݄։࠵ɺ୩‫ޱ‬ʣ• Advisory Chair, The 7th International Conference
on Mobile Ubiquitous Computing, Systems, Services
and Technologies (UBICOMM 2013).ʢ2013 ೥ 9 ݄։࠵ɺ୩‫ޱ‬ʣ• TPC Member, The 7th International Conference on
Mobile Ubiquitous Computing, Systems, Services
and Technologies (UBICOMM 2013).ʢ2013 ೥ 9 ݄։࠵ɺ୩‫ޱ‬ʣ

5.2.4

ֶձʹ͓͚Δট଴ߨԋɾύωϧਤ 27: OACIS ৘ใՊֶߨ࠲Ͱͷߨԋͷ༷ࢠ• ௕୩઒߶, “ϢʔβʹΑΔτϥώοΫ‫ܦ‬࿏੍‫͕ޚ‬
ISP ʹ༩͑ΔΠϯύΫτ,” 2013 ೥৘ใ௨৴ϚωδϝϯτϫʔΫγϣοϓ, ԰‫ٱ‬ౡ‫ڥ؀‬จԽଜηϯ

5.3.3

λʔ, ࣛࣇౡ, Mar. 2013. (ট଴ߨԋ)

5.2.5

֘౰ͳ͠

ট଴࿦จ

5.3.4

֘౰ͳ͠

5.2.6

ӡӦҕһձίʔσΟωʔλΛ຿ΊΔͱͱ΋ʹɺύ͞Εͨࠃࡍձٞ IEEE CQR 2012 Ͱൃදͨ͠࿦จ

ωϧσΟεΧογϣϯͷίʔσΟωʔλΛ୲౰͠ʢ୊໊ɿEvaluation and improvement of end-to-end

ͨɻʢ2012 ೥ 10 ݄ 1 ೔ɺத໺ʣ

bandwidth measurement method for power-saving
routersɺஶऀɿDaisuke Kobayashi, Go Hasegawa
and Masayuki Murataʣ͕ Best Paper Award Λड

5.4৆ͨ͠ɻʢ2012 ೥ 5 ݄ɺ௕୩઒ʣ

• ฏ੒ 24 ೥౓େࡕେֶ૯௕঑ྭ৆ (‫ڀݚ‬෦໳) Λड৆ͨ͠ɻʢ2012 ೥ 8 ݄ 1 ೔ɺ௕୩઒ʣ

• ిࢠ৘ใ௨৴ֶձ௨৴ιαΠΤςΟ౤ߘ࿦จͷࠪಡҕһͱͯ͠ͷߩ‫ʹݙ‬ରͯ͠ɺిࢠ৘ใ௨৴ֶձ
௨৴ιαΠΤςΟ‫׆‬ಈޭ࿑৆Λड৆ͨ͠ɻʢ2012೥ 9 ݄ 12 ೔ɺ୩‫ޱ‬ʣ

5.3.1

ֶ֎ҕһ

• IT γϯϙδ΢Ϝ Info-Tech 2012 ʮϏοάσʔλΛ༗ޮ‫͢༻׆‬Δ৽ͨͳϏδωεઓུʯʹ͓͍ͯ‫ا‬ըֶձදজ• 2012 ೥ 5 ݄ʹΞϝϦΧ߹ऺࠃαϯσΟΤΰͰ։࠵

5.3

ಛ‫ڐ‬

ϓϩδΣΫτ‫׆‬ಈ• ૯຿ল SCOPE (PREDICT), “ωοτϫʔΩϯάϋʔυ΢ΣΞͷపఈͨ͠εϥΠεԽʹ‫ͮ͘ج‬লిྗϧʔλΞʔΩςΫνϟͷ‫ڀݚ‬։ൃ,” 2010ʙ2012೥౓෼୲ʢ௕୩઒ʣ

• ಠཱߦ੓๏ਓ৘ใ௨৴‫( ߏػڀݚ‬NICT) डୗ‫ڀݚ‬,“ੜ෺ωοτϫʔΫͷॖॏɾ৑௕ੑʹ‫ڧؤͮ͘ج‬͔ͭ࣋ଓ੒௕Մೳͳ৘ใωοτϫʔΫઃ‫ؔ͢ʹܭ‬Δ‫ڀݚ‬,” ʢ௕୩઒ʣ

• ಠཱߦ੓๏ਓ৘ใ௨৴‫( ߏػڀݚ‬NICT) डୗ‫ڀݚ‬,“ύϨʔτ࠷దωοτϫʔΫ࣮‫ݱ‬ͷͨΊͷϢʔβɾ࢈ֶ࿈‫ܞ‬‫ͱۀا‬ͷ‫ڞ‬ಉ‫ڀݚ‬ࢿ‫ݯ‬؅ཧΞϓϦέʔγϣϯ,” ৽ੈ୅ωοτϫʔΫ• ೔ຊి৴ి࿩‫ࣜג‬ձࣾʢத໺ɺ௕୩઒ʣ

Λࢧ͑ΔωοτϫʔΫԾ૝Խ‫ج‬൫ٕज़ͷ‫ڀݚ‬։ൃ• ‫ࣜג‬ձࣾϧωαεΤϨΫτϩχΫεʢ௕୩઒ʣ(՝୊΢), 2011ʙ2012 ೥౓୅දʢ௕୩઒ʣ• ԭి‫ࣜגۀ޻ؾ‬ձࣾʢ௕୩઒ʣ• Պֶ‫ڀݚ‬අิॿۚʢ‫ج‬൫‫ ڀݚ‬Cʣ, “ແઢ‫ثػ‬ͷলిྗ‫ߏػ‬ͷޮՌΛ࠷େԽ͢Δτϥϯεϙʔτ૚

― 75 ―

ΞʔΩςΫνϟ,” 2012ʙ2014 ೥౓୅දʢ௕୩઒ʣ

6.2• Պֶ‫ڀݚ‬අิॿۚʢएख‫ ڀݚ‬Bʣ, “‫ڥ؀‬มಈ΁ͷదԠੑ͕ߴ͘ిྗফඅͷগͳ͍ηϯασʔλऩू‫ߏػ‬ͷ։ൃ,” 2011ʙ2012 ೥౓୅දʢ୩‫ޱ‬ʣ

8. ௕୩઒߶, “Πϯλʔωοτͷ᫔᫓੍‫ٕޚ‬ज़,” ੜ࢈ͱٕज़, vol. 64, no. 4, pp. 28–33, 2012.
6.3

ࠃࡍձٞൃද࿦จ

9. Go Hasegawa, Shoichi Takemori, Yoshiaki Taniguchi and Hirotaka Nakano, “Determining coverage ೥౓‫ൃڀݚ‬ද࿦จҰཡarea using Voronoi diagram based on local information for wireless mesh networks,” in Proceedings of the 9th International Conference on Infor-2012 ೥౓಺ʹग़൛ɺൃද͞Εͨ࿦จΛྻ‫͢ڍ‬Δɻ
6.1

ղઆ࿦จ

ֶज़࿦จࢽ‫ࡌܝ‬࿦จ

1. Go Hasegawa, Shinpei Tanaka, Yoshiaki Taniguchi and Hirotaka Nakano, “Time slot assignment

mation Technology : New Generations (ITNG 2012),
pp. 71–76, Las Vegas, USA, Apr. 2012.

algorithms to upstream links for decreasing transmission latency in IEEE 802.16j networks,” IEICE
Transactions on Communications, vol. E95-B, no. 5,

10. Daisuke Kobayashi, Go Hasegawa and Masayuki
Murata, “Evaluation and improvement of end-to-end
bandwidth measurement method for power-saving
routers,” in Proceedings of the 2012 International
Communications Quality and Reliability Workshop

pp. 1793–1801, May 2012.
2. Yukio Ogawa, Go Hasegawa and Masayuki Murata,“Power consumption evaluation of distributed computing network considering traf¿c locality,” IEICE(IEEE CQR 2012), 6 pages, San Diego, USA, May
2012. (Best Paper Award)

Transactions on Communications, vol. E95-B, no. 8,
pp. 2538–2548, Aug. 2012.

11. Kazumasa Koitani, Go Hasegawa and Masayuki
Murata, “Measuring available bandwidth of multiple

3. Masahiro Sasabe and Hirotaka Nakano, “Perfect cell
partitioning scheme for micro-cellular networks,”

parts on end-to-end network path,” in Proceedings ofthe 2012 International Communications Quality andReliability Workshop (IEEE CQR 2012), 6 pages,

Journal of Communications, vol. 7, no. 10, pp. 749–
757, Oct. 2012.

San Diego, USA, May 2012.

4. Dinh Tien Hoang, Go Hasegawa and Masayuki Murata, “A low-cost, distributed and conÀict-aware
measurement method for overlay network services

12. Yukio Ogawa, Go Hasegawa and Masayuki Murata,“Effect of traf¿c locality on power consumption of
distributed computing network with a data center,”utilizing local information exchange,” IEICE Transactions on Communications, vol. E96-B, no. 2,

in Proceedings of the 9th International Conference
on Communications (COMM 2012), pp. 233–236,

pp. 459–469, Feb. 2013.

Bucharest, Romania, June 2012.

5. Xun Shao, Go Hasegawa, Yoshiaki Taniguchi and

13. Yoshiaki Taniguchi, Go Hasegawa and Hirotaka

Hirotaka Nakano, “A routing strategy for multihomed ISP to mitigate the impact of overlay traf¿c,” IEICE Transactions on Information and Sys-

Nakano, “Self-organizing transmission schedulingmechanisms using a pulse-coupled oscillator model
for wireless sensor networks,” in Proceedings oftems, vol. E96-D, no. 2, pp. 193–201, Feb. 2013.
6. Kazuhito Matsuda, Go Hasegawa, Satoshi Kamei

the 2nd International Conference on Digital Information Processing and Communications (ICDIPC

and Masayuki Murata, “A method to reduce interISP transit cost caused by overlay routing based on

14. Xun Shao, Go Hasegawa, Yoshiaki Taniguchi andend-to-end network measurement,” IEICE Transactions on Information and Systems, vol. E96-D, no. 2,
pp. 289–302, Feb. 2013.

Hirotaka Nakano, “A game-theoretic analysis of interaction between overlay routing and multihoming,” in Proceedings of the 14th Asia-Paci¿c Net-

7. Shizuka Fujisawa, Go Hasegawa, Yoshiaki Taniguchi and Hirotaka Nakano, “Pedestrian counting inwork Operations and Management Symposium (APNOMS 2012), 7 pages, Seoul, Korea, Sep. 2012.

video sequences based on optical Àow clustering,”
International Journal of Image Processing, vol. 7,

15. Masafumi Hashimoto, Go Hasegawa and Masayuki
Murata, “Exploiting SCTP multistreaming to reduce2012), pp. 85–90, Klaipeda, Lithuania, July 2012.

energy consumption of multiple TCP Àows over a
WLAN,” in Proceedings of the 2nd International

no. 1, pp. 1–16, Feb. 2013.

― 76 ―

Conference on Green Communications and Networking (GreeNETS 2012), 8 pages, Gandia, Spain,
Oct. 2012.
16. Dinh Tien Hoang, Go Hasegawa and Masayuki Mu-‫ڀ‬ใࠂ (AN2012-1), vol. 112, no. 30, pp. 1–6, ๛‫ڮ‬Պֶٕज़େֶ, Ѫ஌, May 2012.

23. ‫ڮ‬ຊ‫࢙ڡ‬, ௕୩઒߶, ଜాਖ਼޾, “ແઢ LAN ‫ʹڥ؀‬
͓͚Δ TCP σʔλసૹͷলిྗԽͷͨΊͷ SCTP

rata, “A distributed and conÀict-aware measurement
method based on local information exchange inτϯωϦϯάͷఏҊ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬

overlay networks,” in Proceedings of the 2012 Australasian Telecommunication Networks and Applications Conference (ATNAC 2012), 6 pages, Bris-ࢢຽձ‫ؗ‬, ๺ւಓ, June 2012.

ใࠂ (IN2012-26), vol. 112, no. 88, pp. 13–18, വ‫ؗ‬24. ౻Ҫਸ౉, ୩‫ޱ‬ٛ໌, ௕୩઒߶, த໺തོ, “ෳ‫؟‬ηϯαγεςϜͷͨΊͷϞϯςΧϧϩ๏ʹ‫ͮ͘ج‬าbane, Australia, Nov. 2012.

ߦऀ਺ਪఆख๏ͷఏҊͱධՁ,” ిࢠ৘ใ௨৴ֶձ
ٕज़‫ڀݚ‬ใࠂ (PRMU2012-23), vol. 112, no. 111,

17. Shuto Fujii, Yoshiaki Taniguchi, Go Hasegawa
and Hirotaka Nakano, “Monte Carlo-based bidirectional pedestrian counting with compound-eye

pp. 13–18, ૣҴాେֶ, ౦‫ژ‬, June 2012.
25. ௕୩઒߶, ଜాਖ਼޾, “ੜ෺ωοτϫʔΫͷॖॏੑɾsensor,” in Proceedings of the 2012 IEEE International Conference on Computer Systems and Industrial Informatics (ICCSII 2012), 6 pages, Sharjah,৑௕ੑʹ‫ͮ͘ج‬৘ใωοτϫʔΫઃ‫ؔ͢ʹܭ‬ΔҰ
‫ݕ‬౼,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (CQ2012-22), vol. 112, no. 119, pp. 29–34, Ѫඤେֶ, Ѫඤ,July 2012.

UAE, Dec. 2012.
18. Tomoya Kitayama, Go Hasegawa, Yoshiaki Taniguchi and Hirotaka Nakano, “Time slot-adding algorithm for improving bottleneck link throughput inIEEE 802.16j relay networks,” in Proceedings ofthe 27th International Conference on Information
Networking (ICOIN 2013), pp. 606–611, Bangkok,
Thailand, Jan. 2013.

26. Dinh Tien Hoang, ௕୩઒߶, ଜాਖ਼޾, “ΦʔόϨΠωοτϫʔΫʹ͓͚Δ‫ॴہ‬తͳ৘ใަ‫ͮجʹ׵‬͘෼ࢄ‫ܭܕ‬ଌख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (IN2012-35), vol. 112, no. 134, pp. 13–18, ๺ւಓେֶ, ๺ւಓ, July 2012.

27. দాҰਔ, ௕୩઒߶, ଜాਖ਼޾, “τϥώοΫมಈʹԠͨ͡ൃ‫ݟ‬తख๏ʹ‫ͮ͘ج‬ಈతΞϓϦέʔγϣϯ

19. Ryosuke Mine, Go Hasegawa, Yoshiaki Taniguchi૚‫ܦ‬࿏੍‫ޚ‬ख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ
(IN2012-36), vol. 112, no. 134, pp. 19–24, ๺ւಓand Hirotaka Nakano, “Effect of radio interference
models on the performance of time slot assignment

େֶ, ๺ւಓ, July 2012.

algorithms in IEEE 802.16j relay networks,” in Proceedings of the 8th IEEE International Workshop
on the Performance Analysis and Enhancement of

28. ‫ڮ‬ຊ‫࢙ڡ‬, ௕୩઒߶, ଜాਖ਼޾, “ແઢ LAN ʹ͓͚

Wireless Networks (IEEE PAEWN 2013), Barcelona,
Spain, Mar. 2013.

ୈ 163 ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷͨΊͷ‫ج‬

20. Xun Shao, Go Hasegawa, Yoshiaki Taniguchi and
Hirotaka Nakano, “Economically ef¿cient interdomain overlay network based on ISP alliance,” in Proceedings of the 9th International Conference on Networking and Services (ICNS 2013), Lisbon, Portu-

Δ SCTP Λར༻ͨ͠ϑϩʔͷू໿ͱόʔετసૹʹΑΔলిྗޮՌͷղੳ,” Πϯλʔωοτٕज़൫ٕज़‫ڀݚ‬෼ՊձϫʔΫγϣοϓ (ITRC-NWGN

2012), ੺ึϋΠπ, ฌ‫ݿ‬, Sep. 2012.
29. খྛେཌྷ, ௕୩઒߶, ଜాਖ਼޾, “ϧʔλͷলిྗಈ࡞Λߟྀͨ͠ଳҬ‫ܭ‬ଌख๏ͷఏҊ,” Πϯλʔωοτٕज़ୈ 163 ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷͨΊͷ‫ج‬൫ٕज़‫ڀݚ‬෼ՊձϫʔΫγϣοϓ (ITRCNWGN 2012), ੺ึϋΠπ, ฌ‫ݿ‬, Sep. 2012.

gal, Mar. 2013.
6.4‫ޱ‬಄ൃදʢࠃ಺‫ڀݚ‬ձͳͲʣ

21. Xun Shao, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “ΦʔόʔϨΠϧʔςΟϯάͱϚϧνϗʔϜ઀ଓ ISP
ͷ૬‫༻࡞ޓ‬ͷήʔϜཧ࿦ʹ‫ͮ͘ج‬ղੳ,” ిࢠ৘

30. দాҰਔ, ௕୩઒߶, ଜాਖ਼޾, “‫ܦ‬࿏ॏෳʹΑΔϢʔβੑೳͷมԽʹରԠͨ͠ൃ‫ݟ‬తख๏ʹ‫ͮج‬͘෼ࢄ‫ܕ‬ΞϓϦέʔγϣϯ૚‫ܦ‬࿏੍‫ޚ‬ख๏,” Πϯλʔωοτٕज़ୈ 163 ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷͨΊͷ‫ج‬൫ٕज़‫ڀݚ‬෼ՊձϫʔΫγϣοϓ

ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (ICM2012-11), vol. 112,

no. 22, pp. 121–126, ळాେֶ, ळా, May 2012.
22. ୩‫ޱ‬ٛ໌, ௕୩઒߶, த໺തོ, “ແઢηϯαωοτ
ϫʔΫʹ͓͚ΔҐ૬ϩοΩϯά͓Αͼ‫ٯ‬૬ಉ‫ظ‬Λར༻ͨ͠৘ใऩूख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ݚ‬(ITRC-NWGN 2012), ੺ึϋΠπ, ฌ‫ݿ‬, Sep. 2012.
31. ๺ࢁஐ໵, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔϘτϧωο
ΫϦϯΫͷ఻ૹྔΛվળ͢ΔλΠϜεϩοτׂ౰― 77 ―

ख๏ͷ‫ݕ‬౼,” Πϯλʔωοτٕज़ୈ 163 ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷͨΊͷ‫ج‬൫ٕज़‫ڀݚ‬෼Պ௕୩઒߶, “Software De¿ned Access Network ʹ͓ձϫʔΫγϣοϓ (ITRC-NWGN 2012), ੺ึϋΠ͚Δ‫ܦ‬࿏੍‫ޚ‬ख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใπ, ฌ‫ݿ‬, Sep. 2012. (ϙελʔߨԋ)ࠂ (IN2012-104), vol. 112, no. 230, pp. 161–166, ౦‫ژ‬େֶ, ౦‫ژ‬, Oct. 2012.

32. ࡾࠜྔี, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚Δి೾‫ׯ‬ব൑அϞσϧͷੑೳධՁ,” Πϯλʔωοτٕज़ୈ 163

41. ๺ࢁஐ໵, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔϘτϧωο

ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷͨΊͷ‫ج‬൫ٕज़ΫղফͷͨΊͷλΠϜεϩοτ௥Ճख๏ͷఏҊͱ‫ڀݚ‬෼ՊձϫʔΫγϣοϓ (ITRC-NWGN 2012),

ධՁ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (NS2012-੺ึϋΠπ, ฌ‫ݿ‬, Sep. 2012. (ϙελʔߨԋ)88), vol. 112, no. 231, pp. 47–52, ‫౎ژ‬େֶ, ‫౎ژ‬,33. ௨ࡕߤ, ௕୩઒߶, ଜాਖ਼޾, “IEEE 802.11 ϚϧνϗοϓωοτϫʔΫʹ͓͚Δσʔλ఻ૹͷফඅిOct. 2012. (ϙελʔߨԋ)42. ߴ໦঵Ұ, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEEྗྔղੳ,” Πϯλʔωοτٕज़ୈ 163 ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷͨΊͷ‫ج‬൫ٕज़‫ڀݚ‬෼Պձ

802.16j ϦϨʔωοτϫʔΫʹ͓͚Δి೾‫ׯ‬বʹΑΔ఻ૹྔมಈΛߟྀͨ͠λΠϜεϩοτׂ౰खϫʔΫγϣοϓ (ITRC-NWGN 2012), ੺ึϋΠπ,๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (NS2012-89),ฌ‫ݿ‬, Sep. 2012. (ϙελʔߨԋ)vol. 112, no. 231, pp. 53–58, ‫౎ژ‬େֶ, ‫౎ژ‬, Oct.
2012. (ϙελʔߨԋ)34. ‫ޥ‬୩࿨ਖ਼, ௕୩઒߶, ଜాਖ਼޾, “ωοτϫʔΫύεͷෳ਺۠ؒͷར༻ՄೳଳҬ‫ܭ‬ଌख๏,” Πϯλʔωοτٕज़ୈ 163 ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷ

43. ૿ඌ߶, தଜೋ࿕, দԬໜొ, ௕୩઒߶, ଜాਖ਼޾,দా࿨ߒ, “ϦΞϧλΠϜ Web ٕज़ʹΑΔ HEMSͨΊͷ‫ج‬൫ٕज़‫ڀݚ‬෼ՊձϫʔΫγϣοϓ (ITRC-

αʔϏεΫϥ΢υԽͷ‫ݕ‬౼,” ిࢠ৘ใ௨৴ֶձٕ

NWGN 2012), ੺ึϋΠπ, ฌ‫ݿ‬, Sep. 2012. (ϙεज़‫ڀݚ‬ใࠂ (NS2012-117), vol. 112, no. 350, pp. 1–

λʔߨԋ)6, Ѫඤେֶ, Ѫඤ, Dec. 2012.

35. Dinh Tien Hoang, ௕୩઒߶, ଜాਖ਼޾, “ΦʔόϨ

44. ‫ؠ‬Ҫ޹๏, ௕୩઒߶, ए‫ٶ‬௚‫ل‬, ຊ٢඙, ٢઒ོ࢜, “ΠωοτϫʔΫʹ͓͚Δ‫ॴہ‬తͳ৘ใަ‫ͮجʹ׵‬ϞόΠϧίΞωοτϫʔΫʹ͓͚Δτϯωϧू໿͘෼ࢄ‫ܭܕ‬ଌख๏,” Πϯλʔωοτٕज़ୈ 163 ҕһձ৽ੈ୅ωοτϫʔΫߏஙͷͨΊͷ‫ج‬൫ٕज़‫ݚ‬ํࣜ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (NS2012136), vol. 112, no. 350, pp. 115–120, Ѫඤେֶ, Ѫ‫ڀ‬෼ՊձϫʔΫγϣοϓ (ITRC-NWGN 2012), ੺ඤ, Dec. 2012.

ึϋΠπ, ฌ‫ݿ‬, Sep. 2012.

36. ૿ඌ߶, தଜೋ࿕, দԬໜొ, ௕୩઒߶, ଜాਖ਼޾,দా࿨ߒ, “WoT ʹΑΔ HEMS ࣮‫ݱ‬ੑͷ‫ݕ‬౼ (1),”45. ໼क‫ࢠګ‬, ଠాೳ, ௕୩઒߶, ৽‫྄۽‬Ұ, খ‫ޱ‬ਖ਼ਓ,ଜ੉ษ, “ύϨʔτ࠷దωοτϫʔΫ࣮‫ݱ‬ͷͨΊͷϢʔβɾࢿ‫ݯ‬؅ཧΞϓϦέʔγϣϯσϞγεςϜͷ

ిࢠ৘ใ௨৴ֶձ 2012 ιαΠΤςΟେձߨԋ࿦։ൃ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (CQ2012-จू (B-6-11), ෋ࢁେֶ, ෋ࢁ, Sep. 2012.

73), vol. 112, no. 414, pp. 1–4, ‫ػ‬ցৼ‫ڵ‬ձ‫ؗ‬, ౦‫ژ‬,Jan. 2013.

37. ‫ڮ‬ຊ‫࢙ڡ‬, ௕୩઒߶, ଜాਖ਼޾, “SCTP Λ༻͍ͨແઢ LAN ʹ͓͚Δ TCP σʔλసૹͷলిྗԽʹ46. ా্୓໻, ୩‫ޱ‬ٛ໌, ௕୩઒߶, த໺തོ, “ಈը૾ؔ͢ΔҰ‫ݕ‬౼,” ిࢠ৘ใ௨৴ֶձ 2012 ιαΠΤதͷาߦऀ਺ਪఆʹ͓͚Δઆ໌ม਺ͷॏճ‫ؼ‬෼ੳςΟେձߨԋ࿦จू (BS-4-3), ෋ࢁେֶ, ෋ࢁ, Sep.
2012.

༧ߘू, pp. 37–44, ߴ஌޻Պେֶ, ߴ஌, Feb. 2013.

38. ࡾࠜྔี, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚Δ༷ʑͳి೾

47. ๺ࢁஐ໵, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “IEEE
802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔτϥώοΫ

‫ׯ‬বϞσϧʹ‫ͮ͘ج‬λΠϜεϩοτׂ౰ख๏ͷੑෛՙʹԠͨ͡λΠϜεϩοτׂ౰ͷվળख๏,”ೳධՁ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (CQ2012-ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (NS2012-167),48), vol. 112, no. 218, pp. 37–42, ‫ُؙ‬ொϨοπϗʔϧ, ߳઒, Sep. 2012.

vol. 112, no. 464, pp. 13–18, ࢒೾ິϩΠϠϧϗς
ϧ, ԭೄ, Mar. 2013.

39. ଠాೳ, ௕୩઒߶, ৽‫྄۽‬Ұ, ໼क‫ࢠګ‬, খ‫ޱ‬ਖ਼ਓ,ଜ੉ษ, “ύϨʔτ࠷దωοτϫʔΫ࣮‫ݱ‬ͷͨΊͷϢʔβɾࢿ‫ݯ‬؅ཧΞϓϦέʔγϣϯ,” ిࢠ৘ใ௨৴

48. ௨ࡕߤ, ௕୩઒߶, ଜాਖ਼޾, “IEEE 802.11 ϚϧνϗοϓωοτϫʔΫʹ͓͚Δ‫ׯ‬বΛߟྀͨ͠σʔλ఻ૹ࣌ͷফඅిྗྔղੳ,” ిࢠ৘ใ௨৴ֶձٕज़

ֶձٕज़‫ڀݚ‬ใࠂ (IN2012-81), vol. 112, no. 230,
pp. 39–44, ౦‫ژ‬େֶ, ౦‫ژ‬, Oct. 2012.

‫ڀݚ‬ใࠂ (NS2012-168), vol. 112, no. 464, pp. 19–

40. ࠓத‫ܠن‬, தଜ৴೭, தฏՂ༟, ࣛౢਖ਼޾, Ѩଟ৴‫ޗ‬,49. ࡾࠜྔี, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “‫ׯ‬বਪΛ༻͍ͨධՁ,” ը૾ిࢠֶձୈ 264 ճ‫ڀݚ‬ձߨԋ

24, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar. 2013.

― 78 ―

ఆํ͕ࣜ IEEE 802.16j ϦϨʔωοτϫʔΫͷੑ

6.5.2

ೳʹ༩͑ΔӨ‫ڹ‬,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ

58. Tomoya Kitayama, “Time slot assignment algorithm
in IEEE 802.16j relay networks considering traf-(NS2012-224), vol. 112, no. 464, pp. 343–348, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar. 2013.

¿c demand and link transmission quality,” Master’s
Thesis, Graduate School of Information Science andTechnology, Osaka University, Feb. 2013.

50. দాҰਔ, ௕୩઒߶, ଜాਖ਼޾, “τϥϯδοτίε
τ࡟‫ݮ‬ͷͨΊͷ ISP ؒ‫ڠ‬ௐʹ‫ ͮ͘ج‬CCN Ωϟογϡ‫ڞ‬༗ख๏,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ(NS2012-236), vol. 112, no. 464, pp. 415–420, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar. 2013.

म࢜࿦จ

59. Wataru Toorisaka, “Power consumption analysis ofdata transmission over IEEE 802.11 multi-hop networks,” Master’s Thesis, Graduate School of Information Science and Technology, Osaka University,

51. Ԭ࡚୓࿠, ௕୩઒߶, ଜాਖ਼޾, “ੜ෺ωοτϫʔΫͷॖୀಛੑʹ‫ڧؤͮ͘ج‬ੑΛ༗͢Δ৘ใωοτ

Feb. 2013.

ϫʔΫγεςϜͷ৑௕Խख๏,” ిࢠ৘ใ௨৴ֶ

60. Ryosuke Mine, “Effect of radio interference esti-ձٕज़‫ڀݚ‬ใࠂ (NS2012-267), vol. 112, no. 464,

mation methods for time slot assignment on performance of IEEE 802.11j relay networks,” Master’s
Thesis, Graduate School of Information Science andpp. 595–600, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar.
2013.
52. খ઒༞‫ل‬༤, ௕୩઒߶, ଜాਖ਼޾, “Ϛϧνςφϯ
τ‫ܕ‬σʔληϯλʹ͓͚Δੑೳͱ଱ো֐ੑΛߟྀͨ͠Ծ૝ԽωοτϫʔΫ഑ஔํࣜ,” ిࢠ৘ใ௨৴
ֶձٕज़‫ڀݚ‬ใࠂ (IN2012-186), vol. 112, no. 465,

Technology, Osaka University, Feb. 2013.
6.5.3

61. Ԭ࡚୓࿠, “ੜ෺ωοτϫʔΫͷॖୀಛੑʹ‫ͮ͘ج‬‫ڧؤ‬ੑΛ༗͢Δ৘ใωοτϫʔΫγεςϜ৑௕Խpp. 191–196, ࢒೾ິϩΠϠϧϗςϧ, ԭೄ, Mar.

ख๏,” େࡕେֶ‫ֶ޻ૅج‬෦৘ใՊֶՊಛผ‫ڀݚ‬ใ

2013.
53. Xun Shao, ௕୩઒߶, ୩‫ޱ‬ٛ໌, த໺തོ, “ISP࿈‫ͮ͘جʹܞ‬υϝΠϯؒΦʔόϨΠωοτϫʔࠂ, Feb. 2013.

62. খࢁߕࣹ, “IEEE 802.16j ϦϨʔωοτϫʔΫʹ͓͚ΔϢʔβ୺຤ऩ༰ͷͨΊͷλΠϜεϩοτׂΓΫ,” ిࢠ৘ใ௨৴ֶձٕज़‫ڀݚ‬ใࠂ (ICM2012-౰ͯख๏ͷධՁ,” େࡕେֶ‫ֶ޻ૅج‬෦৘ใՊֶՊ

61), vol. 112, no. 492, pp. 13–18, ԰‫ٱ‬ౡ‫ڥ؀‬จԽଜηϯλʔ, ࣛࣇౡ, Mar. 2013.

54. ௕୩઒߶, “ϢʔβʹΑΔτϥώοΫ‫ܦ‬࿏੍‫͕ޚ‬
ISP ʹ༩͑ΔΠϯύΫτ,” 2013 ೥৘ใ௨৴ϚωδϝϯτϫʔΫγϣοϓ, ԰‫ٱ‬ౡ‫ڥ؀‬จԽଜηϯλʔ, ࣛࣇౡ, Mar. 2013. (ট଴ߨԋ)

6.5

ಛผ‫ڀݚ‬ใࠂ, Feb. 2013.

63. ా্୓໻, “ಈը૾தͷาߦऀ਺ਪఆʹ͓͚Δઆ໌ม਺ͷॏճ‫ؼ‬෼ੳΛ༻͍ͨධՁ,” େࡕେֶ‫޻ૅج‬ֶ෦৘ใՊֶՊಛผ‫ڀݚ‬ใࠂ, Feb. 2013.

64. ‫ڮ‬ຊ࿨޾, “ಈը૾தͷಛ௃఺਺ʹ‫ͮ͘ج‬าߦऀ਺‫ܭ‬ଌख๏ʹΦΫϧʔδϣϯ͕༩͑ΔӨ‫ڹ‬ͷධՁ,”େࡕେֶ‫ֶ޻ૅج‬෦৘ใՊֶՊಛผ‫ڀݚ‬ใࠂ, Feb.

ത࢜࿦จɾम࢜࿦จɾಛผ‫ڀݚ‬ใࠂ

6.5.1

2013.

ത࢜࿦จ

55. Masafumi Hashimoto, “Transport-layer solutions
for achieving fairness and energy ef¿ciency in wireless LANs,” Ph.D. Thesis, Graduate School of Information Science and Technology, Osaka University,
Jan. 2013.
56. Kazuhito Matsuda,ಛผ‫ڀݚ‬ใࠂ“Reducing ISPs’ cost by

application-level path selection and in-network
caching,” Ph.D. Thesis, Graduate School of Information Science and Technology, Osaka University,
Jan. 2013.
57. Xun Shao, “Studies on the interation between overlay routing and inter-domain routing structure,”
Ph.D. Thesis, Graduate School of Information Science and Technology, Osaka University, Jan. 2013.

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