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随机衰落信道下多跳无线传输的性能分析

Analysis on the Performance of Multi-Hop Wireless Transmissions over Random Fading Channels
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摘要 基于均衡的概念提出了2种非再生多跳系统放大因子的选取方法,在随机衰落(每跳为独立不同分布衰落,如瑞利、Nakagami或莱斯等)下研究和分析了两跳无线传输系统的性能,并给出了有关数学闭式解.理论和仿真分析表明,两跳传输的分集性能受制于较弱跳信道的特性,分集增益不随衰落因子m(或K)的增长而变化(为较弱跳的分集),该结论也可适用于多跳(跳数>2)传输的情况.再生中继系统在低信噪比时略优于非再生中继,在高信噪比时两者趋于相似.
机构地区 北京大学
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2005年第z1期5-9,共5页 Journal of Beijing University of Posts and Telecommunications
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参考文献9

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