摘要
提出了一种MIMO同时同频全双工系统下的数字干扰对消算法,综合考虑了系统非线性对干扰对消的影响。该算法通过基于逐幸存路径处理的方法,对自干扰信号与待接收信号进行联合信道估计,采用维特比算法实现自干扰信号数字对消和待接收信号最大似然接收。通过对MIMO全双工系统仿真实验表明,该算法能够有效抑制系统非线性失真且有着良好的自干扰对消性能。
A novel digital cancellation technique in full duplex MIMO wireless communication systems is proposed in this paper. The effect of non-linear distortions on self-interference cancellation in futl duplex systems are considered. The proposed scheme are based on the Viterbi algorithm detection using Per-survivor processing （PSP） to jointly estimate the self-interference channel and the signal-of-interest channel. Simulation results illustrate that the proposed scheme is able to suppress the nonlinear distortion to the level of the significant noise component and has fairly desirable self-interference signal cancellation performance.
出处
《电视技术》
北大核心
2015年第13期135-139,共5页
Video Engineering
基金
国家自然科学基金项目(61301117
61221001
61420106008)
上海市数字媒体处理与传输重点实验室(12DZ2272600)
上海交通大学科技创新专项资金项目(AF0300021)
关键词
全双工MIMO
数字对消
逐幸存路径处理
非线性失真
full duplex MIMO
digital cancellation
per-survivor processing
non-linear distortions
