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多协作中继系统的最优功率分配

DOI: 10.13190/jbupt.200903.10.152, PP. 10-13

Keywords: 协作通信,虚拟MIMO,中断概率,最优功率分配,平均功率分配

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Abstract:

提出了协作通信中多协作中继和多接收天线的功率分配的分析模型,采用了矩阵的奇异值分解的方法来分析系统的信道矩阵,得到了一种在功率一定的条件下使信道容量达到最大的最优功率分配方案(OPA),并得出了最优功率分配系数的封闭表达式,并与平均功率分配(EPA)做了比较,得出在相同条件下OPA(optimalpowerallocation)比EPA(equalpowerallocation)的性能好。

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