中文摘要：

Shuang Chert received the BEng degree from Tsinghua University, China, in 2013. Currently, he is pursuing the PhD degree at the DTV Technology R＆D Center, Tsinghua University. His research interests lie in the field of non-orthogonal multiple access. E-mail： chenshuang 13 @ mails.tsinghua.edu.cn; Kewu Peng received the BEng degree in electronics engineering from Hefei University of Technology in 1993, the MEng degree in electronics engineering from Tsinghua University in 1996, and the PhD degree in electrical engineering from the University of Minnesota, Minneapolis, in 2003. He was a researcher and a lecturerwith the Department of Electronic Engineering, Tsinghua University, from Aug 1996 to Aug 1999. Since Jan 2005, he joins the Digital Television Research Center at Tsinghua University as a research staff, assistant researcher （＇06）, and associate professor （＇09）. His research interests include mobile/wireless communications, digital terrestrial/television broadcasting, and image/video transmission. Dr. Peng has published more than 70 journal and conference papers and holds more than 50 China patents.pengkewu@tsinghua.edu.cn; Huangping Jin received the BEng degree in electronic engineering from the Harbin Institute of Technology, China, in 2011. He is currently pursuing the PhD degree from DTV Technology R＆D Center, Tsinghua University, China. His main research interests focus on the physical layer broadband wireless communicationand broadcasting, especially the network information theory, channel coding, and coded modulation as well as multi-service transmission. jhp11 @mails.tsinghua.edu.cn; Jian Song received the BEng and PhD degrees in electrical engineering both from Tsinghua University, China in 1990 and 1995, respectively, and worked for the same university upon his graduation. He has worked at The Chinese University of Hong Kong and University of Waterloo, Canada in 1996 and 1997, respectively. Hehas been with Hughes Network Systems in US,~ for 7 years before joining the faculty tea