CAJ | 학술논문

　　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。
　　침대목전채용적신도고계가연합검측산법적불족，연구다기참협작배경중억제소구간지연간우문제。토론기참협작계통모형，도출소구간지연간우적표체식，추도기우SLNR준칙적지연SLNR예편마，구건LTE물리층하행련로방진평태，방진결과현시해방안대소구간적지연간우유교호적억제작용，감저료오마솔。
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.