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电子学报  2014 

两跳中继系统在混合Gamma衰落信道下的性能分析

DOI: 10.3969/j.issn.0372-2112.2014.10.012, PP. 1944-1950

Keywords: 两跳中继,联合多径阴影衰落,混合Gamma,广义K分布,性能分析

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Abstract:

基于混合Gamma信道模型研究了两跳中继系统在联合多径阴影衰落环境下的性能.推导了两跳中继系统端到端信噪比的累积分布函数和矩生函数的精确闭式解,并基于这些闭式解分析了两跳中继系统的误码率、中断率和分集增益等性能.与广义K衰落模型下的性能进行了比较,运用混合Gamma衰落模型可获得简单精确的结果.最后数值和仿真分析验证了理论研究的正确性.

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