## 5 Simulation
### DASH Dataset Analysis  
The seven DASH datasets used in this paper are summarized in Tables 2 and 3. Table 2 summarizes the media 'Big Buck Bunny', 'Of Forest and Men', and 'The Swiss Account' provided by ITEC [25] and is encoded in AVC/H.264 codec. 'Big Buck Bunny' and 'The Swiss Account' are FHD, and 'Of Forest and Men' is SD (1024 \(\times\) 576). Although it is a 1-s playback segment file, the number of segment files and total playback time do not match exactly. The reason is that the playback time of the last segment file may be shorter than 1 s (e.g., 'Big Buck Bunny' and 'Of Forest and Men'), and the playback time of each segment file or the last segment file may be longer than 1 s (e.g., 'The Swiss Account' has 3451 segment files, but the total playback time is 3453.98 s). In Table 2, B/W denotes the bandwidth described in the media presentation description (MPD). The average file size represents the average size of the media segment files analyzed in this paper and is slightly different from MPD's B/W. The standard deviation refers to the degree of fluctuation of the media. Comparing the standard deviation of the three media files, 'Big Buck Bunny' has relatively more fluctuation. Table 3 lists the 4K DASH dataset, which is encoded with the HEVC [26] codec. 'Dashevc-live-4K V11' is a dataset provided by the 4 Ever project [27]. The remaining three media types are dramas. 'DASH fast' and 'DASH slow' are the same drama, and in the simulation result of the graph, 'DASH fast' requires a higher bit rate than 'DASH slow'. The DASH dataset in Table 3, excluding 'Dashevc-live-4K V11', is part of the media segment files. The Table 3 analysis results reveal that the B/W of MPD and the average file size are about 7 Mbps for the large and 170 Kbps for the smallest. Considering the average file size, the standard deviation of each media in Table 3 is considerably smaller than for each media in Table 2. Comparing the mean and standard deviation, 'Big Buck Bunny' and 'Of Forest and Men' is about 1/2.4, and 'The Swiss \begin{table}
\begin{tabular}{c c c c} \hline \hline  & \multicolumn{3}{c}{**ITEC-Dynamic Adaptive Streaming over HTTP**} \\ \hline
**Name** & **Big Buck Bunny** & **Of Forest and Men** & **The Swiss Account** \\ \hline Resolution & 1920 \(\times\) 1080 (1080 p) & 1024 \(\times\) 576 (SD) & 1920 \(\times\) 1080 (1080 p) \\ Playback time of segment file(s) & 1 & 1 & 1 \\ Number of segment files (total s) & 597 (596.46) & 454 (453.20) & 3451 (3453.9) \\ B/W(MPD)(Kbit/s) & 4728 & 3894 & 4714 \\ Average file size (Kbit) & 4724 & 3888 & 4718 \\ Maximum file size (Kbit) & 9087 & 5549 & 8018 \\ Standard deviation (Kbit) & 1970 & 1610 & 1030 \\ Skewness & 0.23 & \(-\)1.04 & \(-\)1.2 \\ Kurtosis & 2.14 & 2.6 & 6.3 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Dynamic adaptive streaming over hypertext transfer protocol (DASH) dataset (AVC/H.264). \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & \multicolumn{3}{c}{**4 Ever Project**} & \multicolumn{3}{c}{**Drama**} \\ \hline
**Name** & **Dashevc-Live-4K V11** & **liveMainAV** & **DASH Fast** & **DASH Slow** \\ \hline Resolution & 3840 \(\times\) 2106 (4K) & 3840 \(\times\) 2106 (4K) & 3840 \(\times\) 2106 (4K) & 3840 \(\times\) 2106 (4K) \\ Playback time of segment file(s) & 2 & 2 & 1 & 1 \\ Number of segment files (total s) & 72 (151.85) & 120 (240) & 60 (60) & 60 (60) \\ fps & 60 & 90,000/1501 = 59.95 & 90,000/1502 = 59.92 & 90,000/1501 = 59.96 \\ B/W(MPD)(Kbit/s) & 18,363 & 17,744 & 20,019 & 20,019 \\ Average file size (Kbit) & 18,916 & 24,415 & 20,019 & 16,587 \\ Maximum file size (Kbit) & 21,688 & 32,439 & 24,010 & 21,586 \\ Standard deviation (Kbit) & 2439 & 2195 & 1662 & 2115 \\ Skewness & \(-\)1.8 & 0.56 & 0.11 & 0.44 \\ Kurtosis & 6.9 & 4.93 & 2.99 & 2.78 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: DASH dataset (high efficiency video coding-HEVC). Account' is about 1/4.5. However, 'liveMainAV' is about 1/11. In addition, 'DASH fast' is 1/12, and 'DASH slow' is only 1/7.