| 基于MMSE的快跳频系统多用户检测算法 |
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| 引用本文： | 刘传清,胡修林,张蕴玉.基于MMSE的快跳频系统多用户检测算法[J].华中科技大学学报(自然科学版),2007,35(7):18-21. |
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| 作者姓名： | 刘传清 胡修林 张蕴玉 |
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| 作者单位： | 华中科技大学,电子与信息工程系,湖北,武汉,430074 |
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| 摘 要： | 针对快跳频多址系统,提出了基于最小均方误差(MMSE)准则的多用户检测算法.首先对接收矩阵的最大行进行判决,计算最大行信号的接收功率平均值和最小均方误差,选择最小MMSE的行作为期望用户的检测输出.仿真结果表明,本算法能提高无中心功率控制网络的容量和比特错误概率(BER)性能,同时,适合异步跳频网络的信号检测.
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| 关 键 词： | 频跳多址通信 最小均方误差 多用户检测 中心控制 MMSE 快跳频系统 多用户检测算法 systems communication frequency hopping fast detection algorithm 信号检测 控制网络 性能 错误概率 容量 接收功率 无中心 仿真结果 输出 期望 最小均方误差 选择 |
| 文章编号： | 1671-4512（2007）07-0018-04 |
| 修稿时间： | 2006-06-30 |
MMSE-based multiuser detection algorithm for fast frequency hopping communication systems |
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| Liu Chuanqing,Hu Xiulin,Zhang Yunyu.MMSE-based multiuser detection algorithm for fast frequency hopping communication systems[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2007,35(7):18-21. |
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| Authors: | Liu Chuanqing Hu Xiulin Zhang Yunyu |
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| Institution: | Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | A multi-user detection(MUD) algorithm for fast frequency hopping multiply access/multilevel frequency shift keying communication systems is proposed,based on minimum mean square error(MMSE).The algorithm first detected the majority of receiving time-frequency matrix,and then calculates the average and minimum mean square error of correspondence majority,and the minimum MMSE majority were selected for desire user.The proposed algorithm is very suit for distribution networks of no power control,it has the capability of resistant false alarm and fading.Simulation results show that proposed algorithm can improve bit error rate(BER) performance in peer to peer networks,meanwhile,it can improve BER performance of asynchronous frequency hopping communications systems. |
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| Keywords: | frequency hopping multiply access communication minimum mean square error(MMSE) multiuser detection power control |
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