LU Xinlu, received her Bachelor degree in information security from Tongji University in 2013. Currently she is a graduate student in Tongji University. Her current research interests include MIMO, channel estimation and user selection. WU Jun, received his B.S. degree in Information Engineering and M.S. degree in Communication and Electronic System fi-om XIDIAN University in 1993 and 1996. He received his Ph.D. degrees in Signal and Information Procesing from Beijing University of Posts and Telecommunications in 1999. Wu joined in Tongji University as an professor in 2010. His research interests include Wireless Communication, Information Theory and Signal Processing.WU Jun, corresponding author, Tel: 18621956292, E-mail: wujun@tongji.edu.cn HUANG XinLin, is currently an Associate Professor with the Department of Information and Communication Engineering in Tongji University. He obtained his M.E. and Ph.D. degrees from Harbin Institute of Technology in 2008 and 2011. His research focuses on cognitive radio networks, machine learning, OFDM technology, and joint source-channel coding.