自适应加权最小二乘CDMA多用户检测

VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026) Pub Date : 2000-05-15 DOI:10.1109/VETECS.2000.851424

D. Borah, P. Rapajic

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引用次数: 2

摘要

自适应最优CDMA多用户检测可以通过使用一组MMSE滤波器和一个Viterbi检测器来实现。研究了该接收机结构的若干特性。实验结果表明，该接收机能有效抑制窄带干扰。研究了MMSE滤波器长度对MSE的影响，结果表明MMSE滤波器长度只需要几个符号长。研究了接收机的复杂性/性能权衡能力。可以观察到，该接收器在一端成为具有最低复杂性的线性MMSE接收器，在另一端成为具有最高复杂性的最大似然(ML)接收器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Adaptive weighted least squares CDMA multiuser detection

Adaptive optimal CDMA multiuser detection can be performed by using a bank of MMSE filters followed by a Viterbi detector. Several characteristics of this receiver structure are investigated. It is shown that this receiver can successfully suppress narrow band interference (NBI). The effect of the MMSE filter length on MSE is investigated and it is shown that the MMSE filter length needs to be only a few symbols long. The complexity/performance tradeoff capability of the receiver is studied. It is observed that this receiver, at one end, becomes the linear MMSE receiver with lowest complexity and, at the other end, it becomes the maximum likelihood (ML) receiver with highest complexity.

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VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026)

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