四川大学学报：工程科学版2011，Vol.43Issue(4)：154-159,6.
下行4×2LTE系统中混合MIMO传输模式的均衡器设计及其系统性能仿真
Equalizers Design and Performance Simulation for Hybrid MIMO Transmission Schemes in Downlink 4×2 LTE Systems
摘要
Abstract
In order to supply the downlink receiver design of practical LTE system with effective prior information,downlink 4×2 high order MIMO antennas configuration was considered.Firstly,the received signal model of downlink hybrid MIMO transmission schemes was presented in LTE systems,and then Minimum Mean Square Error（MMSE） equalizer and Maximal Ratio Combination（MRC） equalizer were designed to suppress the hybrid interferences,respectively.Furthermore,for improving system simulation efficiency,a modified formula of Signal to Interference plus Noise Ratio（SINR） based on modifying factor was deduced from the random perturbation assumption of channel response matrix.Finally,the hybrid MIMO transmission schemes were considered in downlink LTE system simulations,and throughput curves of target user with different scheme were drawn.The results showed that MMSE equalizer performs better than MRC equalizer,and has important reference value for analyzing actual LTE system performance.关键词
通信传输技术/LTE/MIMOKey words
communication transmission technique/LTE/MIMO分类
信息技术与安全科学引用本文复制引用
王会琦,吕王勇,史思红,马洪..下行4×2LTE系统中混合MIMO传输模式的均衡器设计及其系统性能仿真[J].四川大学学报：工程科学版,2011,43(4):154-159,6.基金项目
国家自然科学基金资助项目 （）
国家自然科学基金重点项目 （）
四川大学青年科学基金资助项目 （）
