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X信道中新的空时码传输方案

DOI: 10.13190/j.jbupt.2014.01.022, PP. 99-102

Keywords: X信道,空时分组码,预编码,多用户干扰,反馈量,传输效率

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Abstract:

对于每个用户均配置两根天线的X信道,提出了一种新的空时码传输方案.每个用户采用速率为2的空时分组码(R2-STBC),通过合理地设计R2-STBC的发送方式和预编码,使接收端对接收信号进行线性处理后消除了多用户干扰.与相同场景中已有的空时码传输方案相比,所提方案不但节省了反馈量,还提高了传输效率.仿真结果显示,所提方案的可靠性显著优于相同场景中的已有方案.

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