Fast-FHMA/MFSK系统中基于分集接收MMSE的多用户检测算法  

Multiuser Detection Algorithm Based on Diversity Combining and MMSE for Fast-MFSK/FHMA Communication System

作　　者：刘传清[1] 胡修林[1] 张蕴玉[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074

出　　处：《应用科学学报》2007年第2期129-133,共5页Journal of Applied Sciences

摘　　要：利用快跳频信号帧间信号一致性以及分布式网络的特点,提出了基于分集合并接收的最小均方误差准则的快跳频多址多用户检测算法.算法适合同步和异步系统,具有较强的抗虚警和抗漏检能力.仿真结果表明该算法能明显提高分布式对等网络终端消除同信道干扰的能力,且相对已有中心功率控制的同步和异步多用户检测算法,该算法可以进一步改善系统的BER性能.A multiuser detection （MUD） algorithm based on diversity combining and MMSE for fast-frequency hopping multilevel-frequency-shift-Keying multiple-access communication system is proposed. It exploits the coordinate of signal energy of desired user in the frame and the distribution networks characteristic. The algorithm suits synchronous and asynchronous frequency hopping multiple access communication system, and is capable of resisting false alarm and deletion. Simulation results show that the proposed detector can improve performance of distribution peer-to-peer communication network and cancel co-channel interference. It can also improve BER performance of existent synchronous and asynchronous frequency hopping multiuser detector.

关 键 词：频跳多址通信 多用户检测 分集合并 最小均方误差 

分 类 号：TN929.5[电子电信—通信与信息系统]