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中文摘要：
对于3用户的多输入多输出干扰信道,提出了一种基于空时编码的干扰消除方法.每个用户采用速率为2的空时分组码,通过在每个用户的发送信号中引入零矩阵,消除第3个接收端的多用户干扰;通过对空时码字进行预编码和接收端的单向协作链路,消除其余2个接收端的多用户干扰.与相同场景中的已有方案相比,所提方案在保持相同传输效率的同时,减少了反馈量,还实现了全分集.仿真结果显示,收发天线的个数相同时,所提方案的可靠性优于相同场景中的已有方案.
英文摘要：
An interference cancellation method based on space-time code is proposed for 3-user multi-input multi-output interference channel. Each user employs rare-2 space-time block code. The multi-user interference at the third receiver is eliminated through the introduction of zero matrix at each user＇transmit signals. The multi-user interference at the other two receivers is eliminated through pre-coding for codewords and unidirectional cooperative link. Compared with the existing scheme for the same scene,the proposed scheme reduces feedback amount and offers full diversity gain,while keeping the same transmission efficiency. Simulation results demonstrate that the proposed scheme outperforms the existing scheme for the same scene.
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