WeizhiZhong, received her M.Sc degree in communication engineering from Jilin University in 2006 and Ph.D. degree in communication engineering from Harbin Institute of Technology in 2010, respectively. She is currently a lecturer in College of Astronautics, Nanjing University of Aeronautics and Astronautics, China. Her research interests focus on broadband communications, MIMO technology and satellite communications. Kunqi Chen, received his B.E. degree in communication engineering from Nanjing University of Aeronautics and Astronautics in 2014. He is currently a graduate student in College of Astronautics, Nanjing University of Aeronautics and Astronautics, China. His research interests focus on cognitive radio, cooperative communication, spectrum resource allocation and advanced mobile communication technology for 3G and LTE. Xin Liu, the corresponding author, email: liuxinstar1984@dlut.edu.cn, received his M.Sc degree and Ph.D. degree in communication engineering from Harbin Institute of Technology in 2008 and 2012 respectively. He is currently an associate professor in School of Information and Communication Engineering, Dalian University of Technology, China. His research interests focus on communication signal processing, cognitive radio, spectrum resource allocation and broadband satellite communication.