%0 Journal Article
%T Joint Bit and Power Allocation Algorithms for MIMO-OFDM Systems<br>MIMO-OFDM系统中的比特和功率联合分配算法
%A Xu Wei
%A Zhao Chun-ming
%A Gong Xiao-qun
%A Zhang Li
%A <br>许威
%A 赵春明
%A 巩晓群
%A 张立
%J 电子与信息学报
%D 2007
%I 
%X In this paper,adaptive modulation and power allocation techniques are investigated for MIMO-OFDM systems.A computationally efficient optimal joint bit and power allocation algorithm is proposed.For implementation simplicity,a simplified sub-optimal algorithm exploiting equal power allocation is presented. Simulation results show that the proposed joint allocation algorithm obtains optimal performance with low computational complexity.Moreover,compared with the optimal algorithm using equal power allocation,the presented sub-optimal algorithm reduces the complexity significantly with slight performance degradation.
%K MIMO-OFDM
%K Adaptive modulation
%K Bit and power allocation
%K Computational complexity<br>MIMO-OFDM
%K 自适应调制
%K 比特和功率分配
%K 算法复杂度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=DE2FB8E1B0A3FE07&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=9CF7A0430CBB2DFD&sid=D4F188B92D16530A&eid=FE1EFC69DB09E3CD&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10