Beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services, University of Science and Technology Beijing(USTB), No.30 Xueyuan Road, Haidian District, Beijing, China 100083;
NEC Laboratories China(NLC), 11th Floor Building A, Innovation Plaza TusPark, Beijing 100084, China;
Beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services, University of Science and Technology Beijing(USTB), No.30 Xueyuan Road, Haidian District, Beijing, China 100083;
Beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services, University of Science and Technology Beijing(USTB), No.30 Xueyuan Road, Haidian District, Beijing, China 100083;
Beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services, University of Science and Technology Beijing(USTB), No.30 Xueyuan Road, Haidian District, Beijing, China 100083;
Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China, 100190;
Beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services, University of Science and Technology Beijing(USTB), No.30 Xueyuan Road, Haidian District, Beijing, China 100083;