Zheng Jianplng was born in 1981. He received the B.S. and M.S. degrees in communication and information system from Xidian University, in 2003 and 2006, respectively. He is currently working towards the Ph.D. degree at Xidian University. His research interests are wireless communications and error control codes. E-maih jpzheng@xidian.edu.cn Bai Baoming was born in 1966. He is a professor at Xidian University and he currently is interested in error control codes, wireless communications and quantum communications. Wang Xinmei was born in 1937. He is a professor at Xidian University. His research interests include information theory and error control codes.