IEEE/ACM TRANSACTIONS ON NETWORKING 15 Zhenlin An received the BS degree from the Wei Lou Dr.Wei Lou is currently an associate pro- School of Information Communicating Engineering fessor in the Department of Computing.The Hong at Dalian University of Technology,China,in 2017. Kong Polytechnic University,Hong Kong.China.He He is now a PhD Student of Department of Comput- received the B.Eng.degree in Electrical Engineer- ing at The Hong Kong Polytechnic University.His ing from Tsinghua University,China in 1995,the research interest includes the Wireless and Backscat- M.Eng.degree in Telecommunications from Beijing ter Communication and Mobile Computing.He is a University of Posts and Telecommunications,China student Member of IEEE and ACM. in 1998,and the Ph.D.degree in Computer Engineer- ing from Florida Atlantic University,USA in 2004. Dr.Lou's current research interests are in the areas of wireless networking.mobile ad hoc and sensor networks,peer-to-peer networks,and mobile cloud computing.He has worked intensively on designing,analyzing and evaluating practical algorithms with the theoretical basis,as well as building prototype systems.His research work Qiongzheng Lin received the BS degree and Ph.D is supported by several Hong Kong GRF grants and Hong Kong Polytechnic degree from the School of Software at Tsinghua University ICRG grants. University,China.He is currently working as a Post Doctor Fellow with the Department of Com- puting.The Hong Kong Polytechnic University.His research interests include radio frequency identifica- tion (RFID)and sensor network,mobile sensing and pervasive computing.He is a member of IEEE and ACM. Lei Xie received his B.S.and Ph.D.degrees from Lei Yang received the B.S.and Ph.D degree from Nanjing University,China in 2004 and 2010,re- the School of Software and the Department of spectively,all in computer science.He is currently an Computer Science and Technology at Xi'an Jiaotong associate professor in the Department of Computer University.He is currently working as an Assistant Science and Technology at Nanjing University.He Professor with the Department of Computing,The has published over 70 papers in ACM/IEEE Trans- Hong Kong Polytechnic University.Previously,he actions on Networking.IEEE Transactions on Mo- was a postdoc fellow at the School of Software of bile Computing,IEEE Transactions on Parallel and Tsinghua University.His research interests include Distributed Systems,ACM Transactions on Sensor Internet of Things,RFID and backscatters,Wireless Networks,ACM MobiCom,ACM UbiComp,ACM and Mobile computing. MobiHoc,IEEE INFOCOM,IEEE ICNP.IEEE ICDCS.etc.IEEE/ACM TRANSACTIONS ON NETWORKING 15 Zhenlin An received the BS degree from the School of Information Communicating Engineering at Dalian University of Technology, China, in 2017. He is now a PhD Student of Department of Comput￾ing at The Hong Kong Polytechnic University. His research interest includes the Wireless and Backscat￾ter Communication and Mobile Computing. He is a student Member of IEEE and ACM. Qiongzheng Lin received the BS degree and Ph.D degree from the School of Software at Tsinghua University, China. He is currently working as a Post Doctor Fellow with the Department of Com￾puting, The Hong Kong Polytechnic University. His research interests include radio frequency identifica￾tion (RFID) and sensor network, mobile sensing and pervasive computing. He is a member of IEEE and ACM. Lei Yang received the B.S. and Ph.D degree from the School of Software and the Department of Computer Science and Technology at Xi’an Jiaotong University. He is currently working as an Assistant Professor with the Department of Computing, The Hong Kong Polytechnic University. Previously, he was a postdoc fellow at the School of Software of Tsinghua University. His research interests include Internet of Things, RFID and backscatters, Wireless and Mobile computing. Wei Lou Dr. Wei Lou is currently an associate pro￾fessor in the Department of Computing, The Hong Kong Polytechnic University, Hong Kong, China. He received the B.Eng. degree in Electrical Engineer￾ing from Tsinghua University, China in 1995, the M.Eng. degree in Telecommunications from Beijing University of Posts and Telecommunications, China in 1998, and the Ph.D. degree in Computer Engineer￾ing from Florida Atlantic University, USA in 2004. Dr. Lou’s current research interests are in the areas of wireless networking, mobile ad hoc and sensor networks, peer-to-peer networks, and mobile cloud computing. He has worked intensively on designing, analyzing and evaluating practical algorithms with the theoretical basis, as well as building prototype systems. His research work is supported by several Hong Kong GRF grants and Hong Kong Polytechnic University ICRG grants. Lei Xie received his B.S. and Ph.D. degrees from Nanjing University, China in 2004 and 2010, re￾spectively, all in computer science.He is currently an associate professor in the Department of Computer Science and Technology at Nanjing University. He has published over 70 papers in ACM/IEEE Trans￾actions on Networking, IEEE Transactions on Mo￾bile Computing, IEEE Transactions on Parallel and Distributed Systems, ACM Transactions on Sensor Networks, ACM MobiCom, ACM UbiComp, ACM MobiHoc, IEEE INFOCOM, IEEE ICNP, IEEE ICDCS, etc