一种准正交空时分组码的并行译码算法

Coal Technology(2010)

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Abstract
针对传统准正交空时分组码译码复杂度高并且不能获得满分集增益的缺点,提出一种新的具有4发1收天线的准正交空时分组码的编译码算法。所提方法在发射端采用二维星座旋转后发射准正交空时分组码,在接收端利用等价信道矩阵的准正交性,采用加权矩阵将信道矩阵对角化,进而实现了发射符号的虚、实部同时独立译码。与传统译码算法和QR分解译码-法相比,新译码算法不仅简化了译码过程而且提高了译码速度,降低了系统误比特率。
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Key words
maximum likelihood,parallel decoding,MIMO,space time code
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