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多协作中继多接收天线下的解码中继传输的功率分配

DOI: 10.13190/jbupt.200806.104.194, PP. 104-108

Keywords: 协作通信,虚拟多输入多输出系统,中断概率,功率分配

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Abstract:

提出协作通信中多协作中继和多接收天线的分析模型.采用一种理论近似的方法来分析源节点和中继节点之间的功率分配,并将对数运算转换成线性运算,从而简化了问题的复杂度.通过理论分析与仿真可知,当系统模型确定以后,功率分配系数存在最优值,由此得出最优功率分配系数和协作增益与信噪比的关系.理论分析和仿真验证表明,所提的近似算法可以有效地运用于基于多协作中继传输的协作通信.

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