瑞利衰落信道的变包大小自适应调制SR-ARQ方案

2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754) Pub Date : 2004-09-05 DOI:10.1109/PIMRC.2004.1373904

Wu Junli, Hou Xiaolin, Yin Chang-chuan, Yue Guangxin

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引用次数: 5

摘要

传统的自动重复请求(ARQ)方案在无线衰落信道中性能较差。本文提出了可变分组大小自适应调制(AM) ARQ方案。分析了离散分组大小AM选择性重复(SR) ARQ方案在瑞利衰落信道中的性能，给出了其吞吐量的简单解析表达式。找到使吞吐量最大化的最佳交换阈值。理论分析和数值计算结果表明，在衰落信道中，每个调制模式的分组大小较小，可以获得较好的性能。

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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Variable packet size adaptive modulation SR-ARQ scheme for Rayleigh fading channels

Conventional automatic repeat request (ARQ) schemes perform poorly in wireless fading channels. In this paper, variable packet size adaptive modulation (AM) ARQ scheme is proposed. The performance of discrete packet size AM selective repeat (SR) ARQ schemes for Rayleigh fading channels is analyzed and simple analytical expressions of its throughput are presented. The optimum switching thresholds that maximize the throughput are found. Theoretic analysis and numerical results indicate that a small number of packet sizes per modulation mode can get good performance in fading channels.

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来源期刊

2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754)

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