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Performance analysis of coherent DS/CDMA systems with antenna diversity in Rayleigh fading channels

机译:瑞利褪色通道天线多样性相干DS / CDMA系统的性能分析

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In this paper, we investigate the performance of coherent direct-sequence code division multiple access (DS/CDMA) systems with antenna diversity in Rayleigh fading channels. For a DS/CDMA system operated in fading channels, the multiple access interference (MAI) is affected by fading. We determine the distribution of multiple access interference (MAI) in Rayleigh fading channels. Two simple approximation methods for MAI distribution are proposed, and compared with the exact MAI distribution. Using the exact and approximated MAI distributions, we evaluate the bit error probability (BEP) expression for coherent DS/CDMA systems with antenna diversity. Moreover, the BEP accuracy of the standard Gaussian approximation is investigated as the number of users, processing gain, and the number of antennas are varied.
机译:在本文中,我们调查了瑞利衰落通道在天线分集中的相干直序码分多址(DS / CDMA)系统的性能。对于在衰落通道中操作的DS / CDMA系统,多访问干扰(MAI)受衰落的影响。我们确定瑞利衰落通道中多次访问干扰(MAI)的分布。提出了两种简单的MAI分布近似方法,并与精确的MAI分布进行比较。使用精确和近似的MAI分布,我们评估具有天线分集的连贯DS / CDMA系统的误码概率(BEP)表达式。此外,调查了标准高斯近似的BEP精度作为用户的数量,处理增益和天线的数量。

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