中文摘要：

陈智：To wh. om correspondenceshould be addressed. E-mail： chenzhi@uestc.edu.cn； Chert Zhi, bom in 1974. He received his Ph. D degrees in University of Electronic Science and Technology of China in 2006. He also received his B.S. and M.S. degrees from University of Electronic Science and Tech- nology of China in 1997 and 2000 respectively. His research interests include wireless communication, mobile communication and anti-interference technologies in communication.