您的位置:首页  > 论文页面

多用户MIMO-OFDM系统中最小化误码率的子载波和功率分配研究

发表时间:2016-02-28  浏览量:2006  下载量:713
全部作者: 毛静,陈晨,白琳,项海格
作者单位: 北京大学信息科学技术学院;北京航空航天大学电子信息工程学院
摘 要: 资源分配是提高大规模输入输出-正交频分复用(multiple input multiple output orthogonal frequency division multiplexing,MIMO-OFDM)系统性能的重要研究课题之一。在总功率的约束条件下,以最小化误码率(bit error rate,BER)为优化目标,研究了多用户MIMO-OFDM系统中的子载波和功率分配问题。对迫零(zero forcing,ZF)和串行干扰消除(successive interference cancellation,SIC)检测器,提出了统一的最优算法和低复杂度的次优分配算法。仿真结果显示,相比于传统次优分配算法,本研究所提次优算法可以取得更好的BER性能。
关 键 词: 无线通信技术;通信与信息系统;多用户MIMO-OFDM系统;非理想检测器;资源分配;误码率
Title: Minimum BER subcarrier and power allocation for multiuser MIMO-OFDM systems
Author: MAO Jing, CHEN Chen, BAI Lin, XIANG Haige
Organization: School of Electronics Engineering and Computer Science, Peking University; School of Electronic and Information Engineering, Beihang University
Abstract: Resource allocation for multiuser multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) systems is an important issue to improve overall system performance. This paper investigates the subcarrier and power allocation to minimize the average bit error rate (BER) subject to a total power constraint. A unified optimal algorithm and suboptimal algorithm with low complexity are proposed for the zero forcing (ZF) and successive interference cancellation (SIC) detector. Simulation results show that the proposed suboptimal algorithm can achieve a better BER performance than the conventional algorithms that are known in the literature.
Key words: wireless communication technology; communication and information system; multiuser MIMO-OFDM system; non-ideal detector; resource allocation; bit error rate
发表期数: 2016年2月第4期
引用格式: 毛静,陈晨,白琳,等. 多用户MIMO-OFDM系统中最小化误码率的子载波和功率分配研究[J]. 中国科技论文在线精品论文,2016,9(4):318-325.
 
3 评论数 0
暂无评论
友情链接