His current research interests include mobile and pervasive computing, wireless sensor networks, and distributed network systems. His publications appear in journals such as JSAC, TMC, TPDS, and TKDE) and conferences such as INFOCOM, PerCom, and UbiComp. He serves as TPC members for many conferences including INFOCOM, PerCom, etc. He is also the TPC chair for MobiQuitous 2011, and an Associate Editor for Elsevier Journal of Pervasive and Mobile Computing (PMC). He is a member of the IEEE and the ACM.