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-  2018 

基于干扰对齐的全双工双向D2D自干扰对消算法 A novel self-interference cancellation algorithm using interference alignment in full-duplex bidirectional D2D system

Keywords: D2D通信,全双工,干扰对齐,自干扰

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Abstract:

针对蜂窝网络下的全双工双向D2D通信系统,在传输域进行自干扰抵消时,现有技术多集中于自干扰最小化问题,残留的自干扰使得全双工系统容量仍然无法达到理论上2倍的半双工系统容量.基于干扰对齐,提出了一种收发波束联合成形自干扰消除方法.算法首先将全双工双向D2D复用蜂窝通信中的自干扰、D2D用户对之间的互干扰,以及蜂窝用户和D2D用户之间的互干扰对齐在接收信号的0空间上;其次,利用收发联合预编码矩阵将对齐的干扰完全消除.仿真结果表明,与传统的半双工D2D通信相比,该算法可以实现2倍的系统容量

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