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为了消除共道干扰,在接收端利用多天线提供空间复用是一种有效手段.传统的接收算法必须预先获得准确的信道状态信息(CSI),在很多实际情况下很难满足.为此提出一种基于独立分量分析(ICA)的干扰消除新算法,该算法不需要估计CSI,仅利用接收信号和通信协议固有的已知信息即可提取出期望信号.实验结果表明,所提算法的期望信号信干噪比(SINR)性能与最优线性接收算法非常接近,差距小于0.1dB.
In order to eliminate co-channel interference, it is an effective method to provide spatial multiplexing at the receiving end by using multiple antennas. The traditional receiving algorithm must obtain accurate channel state information (CSI) in advance and is difficult to meet in many practical situations. A new ICA-based interference cancellation algorithm, which does not need CSI estimation, extracts the desired signal only by using the received signal and the known information inherent in the communication protocol.The experimental results show that the proposed algorithm The signal SINR performance is very close to the optimal linear receive algorithm with a difference of less than 0.1 dB.