基于约束归一化自适应算法的多天线CDMA移动接收

ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202) Pub Date : 1998-08-09 DOI:10.1109/ITS.1998.713146

S. Werner, J. A. Apolinário, T. Laakso

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引用次数: 5

摘要

分析了一种多天线码分多址(CDMA)移动接收机的自适应算法。研究了二规格化数据重用LMS (BNDR-LMS)和规格化LMS (NLMS)的约束版本。将其性能与经典的Frost算法进行了比较。采用时变步进序列进一步提高接收机的性能。结果表明，与传统的Frost算法相比，采用归一化算法可以显著提高收敛速度。在更新中使用最优步长序列提供了快速收敛和接近最优的稳态性能。

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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Multiple-antenna CDMA mobile reception using constrained normalized adaptive algorithms

We analyze adaptive algorithms for a multiple-antenna code division multiple access (CDMA) mobile receiver. We study the constrained versions of the binormalized data-reusing LMS (BNDR-LMS) and the normalized LMS (NLMS). Their performance is compared with that of the classical Frost algorithm. Time-varying step-sequences are used to further enhance the performance of the receiver. The results show that considerable improvement in the convergence speed can be achieved with the use of the normalized algorithms compared with the conventional Frost algorithm. Using an optimal step-sequence in the update provides a fast convergence and a near-optimum steady-state performance.

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来源期刊

ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202)

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