supported by National Nature Science Foundation of China (Grant Nos. 61102068, 60972023,61073168);National Basic Research Program of China (Grant No. 2010 CB328000);Open Research Fund of the State Key Laboratory of Integrated Services Networks, Xidian University (Grant No. ISN12-11);China Postdoctoral Science Foundation funded Project (Grant No. 20110490389);Research Fund for the Doctoral Program of Higher Education (Grant No. 20113218120017);Open Research Fund of National Mobile Communications Research Laboratory, Southeast University (Grant No. 2010D01);Research Fund of National Mobile Communications Research Laboratory, Southeast University (Grant No. 2011A06);Open Research Fund of State Key Laboratory of Advanced Optical Communication Systems and Networks China (Grant No. 2008SH06);NUAA Research Funding (Grant Nos. NS2010091, NS2011013);National Science and Technology Important Special Project (Grant Nos. 2010ZX03003-002, 2010ZX03003-004)
Power allocation plays a crucial role in wireless communications. To facilitate the efficient alloca- tion of limited transmit power, in this paper, a bit error rate (BER) constraint based power allocation scheme is...