一种盲自适应多用户检测器在UWB系统中的应用
首发时间:2006-03-13
摘要:本文介绍了一种基于直接序列扩频码分多址(DS-CDMA)超宽带系统(UWB)的盲自适应多用户检测器。本文详细介绍了这种多用户检测器的原理,通过仿真可以看出,它比传统RAKE接收机有更好的误码率性能。文中的多用户检测算法仅需要期望用户的信号序列和各个用户AWGN信道变量两个系统参数,这种算法是一种盲自适应的算法。
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One Adaptive Blind Multi-user Detectors In UWB Communication
Abstract:This paper introduces an adaptive blind multi-user detection in ultra-wideband (UWB) system based on direct sequence spread spectrum system using code division multiple access. This paper describes the principle of this detection in detail. It shows that the adaptive blind MUD receiver is able to gain better performance about BER than RAKE receivers through simulation by MATLAB. The detection arithmetic in this paper needs only two systemic parameters, which are signature sequence of desired user and variance of AWGN respectively. The detection can be implemented by adaptive and blind.
Keywords: Ultra-Wideband, Multi-user detection, RAKE receiver, DS-CDMA
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