天线选择代码matlab-mimo-optimal-precoder-selection:最佳预编码器选择

上传者: 38703968 | 上传时间: 2023-04-11 22:05:02 | 文件大小: 68KB | 文件类型: ZIP
天线选择代码matlab MIMO最佳预编码器选择 这是用于仿真的MATLAB代码。 具有最大似然检测的空间复用多输入多输出系统的最佳预编码器选择:利用球面解码的概念 摘要:本文提出了一种在接收器处具有最大似然检测的空间多路复用(SM)多输入多输出(MIMO)系统中用于优化预编码器选择的高效计算实现技术。 先前为次优的预编码器选择开发的技术基于预编码器自由距离的下限以减少处理时间。 然而,当空间流的数量接近接收天线的数量时,这些技术的使用导致错误性能的显着下降。 同时,为了达到最佳性能,可以采用传统的最佳预编码器选择技术。 但是,由于穷举搜索,处理时间较长。 因此,在本文中,我们提出了一种预编码器选择技术,该技术可保持最佳性能,而不会像传统的最佳预编码器选择那样花费大量的处理时间。 可以通过以下方式减少处理时间:(1)利用正交幅度调制(QAM)星座图的对称结构,从而减少了搜索空间; (2)采用球形解码(SD)的概念; (3)取消SD的最后阶段; (4)以选择性的方式执行类似SD的处理。 通过仿真确定了所提技术实现的最佳性能和处理时间的减少。 执照 该软件根据以下引用获得许可。 延世大学

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