基于共轭梯度算法的部分自适应STBC CDMA接收机设计

The 2004 IEEE Asia-Pacific Conference on Circuits and Systems, 2004. Proceedings. Pub Date : 2004-12-06 DOI:10.1109/APCCAS.2004.1412778

Gau-Joe Lin, T. Lin, Ta-Sung Lee

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引用次数: 0

摘要

针对多径衰落信道下的STBC CDMA系统，提出了一种具有MAI抑制的部分自适应(PA)接收机。基于广义旁瓣对消技术(GSC)，通过共轭梯度(CG)算法引入部分自适应，开发了一种低复杂度的接收机旁瓣对消实现。仿真结果表明，利用少量导频符号，该接收机可以达到与传统全自适应MMSE接收机相当的性能

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Design of partially adaptive STBC CDMA receiver using conjugate gradient algorithm

A novel partially adaptive (PA) receiver with MAI suppression is proposed for an STBC CDMA system under the multipath fading channels. A low-complexity PA realization of the receiver is developed based on the generalized sidelobe canceller (GSC) technique which partial adaptivity is incorporated via the conjugate gradient (CG) algorithm for reduced complexity implementation. The proposed PA receiver is evaluated through simulations, and the results show that it can achieve nearly the same performance of the conventional fully adaptive MMSE receiver by using a small number of pilot symbols

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来源期刊

The 2004 IEEE Asia-Pacific Conference on Circuits and Systems, 2004. Proceedings.

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