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迫零中继系统中的空间信道配对与映射

DOI: 10.13190/jbupt.201005.84.longh, PP. 84-88

Keywords: 中继系统,迫零,信道配对与映射,置换矩阵,酉阵

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Abstract:

为了解决迫零(ZF)中继协议转发噪声过大的问题,提出在ZF中继协议中加入空间信道配对与映射.在中继节点的反向滤波器之后、前向滤波器之前增加空间信道配对(映射)矩阵.置换矩阵作为空间信道配对矩阵,应用于多个单天线目标节点时.酉阵作为空间信道映射矩阵,应用于单个多天线目标节点时.理论分析和仿真结果证明,空间信道配对与映射降低了转发信号中的噪声功率,提高了每个数据流的接收信噪比(SNR).

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