不完全信道估计下瑞利和瑞利衰落的SIMO分集接收

2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI) Pub Date : 2016-09-01 DOI:10.1109/ICACCI.2016.7732030

Y. Vasavada, A. Beex, Jeffrey H. Reed

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引用次数: 1

摘要

结合不完全信道估计(OC-ICE)，提出了几个新的结果。证明了一种阈值效应对衰落信道的影响;结果表明，无论导频信道接收的信噪比如何，OC-ICE的性能都接近于最佳(即，与最大比率组合器(MRC)的性能相似)。超过阈值，性能下降，在某些情况下接近瑞利衰落情况的性能。本文提出了一种新的分析方法来评估正交频域(OC-ICE)在时域衰落下的误码概率。这一分析是基于本文所做的观察，即不完全渠道估计的影响是有效地降低了专家K因子。

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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SIMO diversity reception in Rayleigh and Rician fading with imperfect channel estimation

Several new results are presented for optimum (diversity) combining with imperfect channel estimates (OC-ICE). A thresholding effect is demonstrated for the Rician fading channel; it is shown that the OC-ICE performance is near optimal (i.e., similar to that for the maximum ratio combiner (MRC)) below a (Rician K factor dependent) threshold irrespective of the pilot channel received SNR. Above the threshold, the performance degrades and in certain cases approaches the performance of the Rayleigh fading case. A new analytical evaluation of the bit error probability of the OC-ICE in Rician fading is presented. This analysis is based on an observation made in this paper that an effect of imperfect channel estimates is to effectively lower the Rician K factor.

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2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI)

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