抑制小区间干扰的迟延可容忍预编码方案

A Method for Delay-tolerant Precoding to Overcoming Inter-cell Interference

针对目前采用的信道估计加联合检测算法的不足,研究多基站协作环境中抑制小区间迟延干扰问题。讨论基站协作系统模型,导出小区间迟延干扰的表达式,推导基于SLNR准则的迟延SLNR预编码,构建LTE物理层下行链路仿真平台,仿真结果显示该方案对小区间的迟延干扰有较好的抑制作用,减低了误码率。

Against the problem of channel estimation plus joint detection algorithm,study inter-cell asynchronous interference in Co-BS environment,Discussed the base station cooperative system model and inter-cell interference delay expression,a delay-tolerance SLNR precoding is brought forward to SLNR.The LTE physical layer downlink simulation platform is constructed,Simulation results show that the scheme can preferably mitigate inter-cell asynchronous interference.reduces the bit error rate.