Lognormal-Rayleigh信道中多跳MIMO-OFDM系统无线资源分配算法研究  

Study on a resource allocation scheme in multi-hop MIMO-OFDM systems over lognormal-rayleigh compound channels

作　　者：刘俊[1] 

机构地区：[1]复旦大学信息科学与工程学院,上海200433

出　　处：《上海师范大学学报（自然科学版）》2015年第5期537-541,共5页Journal of Shanghai Normal University(Natural Sciences)

基　　金：03国家科技重大专项项目(2012ZX03001013-004)

摘　　要：面向新一代无线通信网络,研究基于MIMO-OFDM技术的多跳中继网络的容量及端到端吞吐量优化方案.在Lognormal-Rayleigh阴影复合衰落信道环境中,使用注水算法分配功率,分析对系统容量和多跳中继系统端到端吞吐量的影响.仿真结果表明:使用注水算法对多跳MIMO-OFDM系统中各跳子载波对应的子信道进行功率分配,可以显著提高系统吞吐量.For new generation wireless communication networks, this paper studies the optimization of the capacity and end-to-end throughput of the MIMO-OFDM based multi-hop relay systems. A water-filling power allocation method is proposed to improve the channel capacity and the throughput of the MIMO-OFDM system based multi-hop relay system in the Lognormal-Rayleigh shado- wing compound channels. Simulations on the capacity and throughput show that the water-filling algorithm can improve the system throughput effectively in the MIMO-OFDM multi-hop relay system.

关 键 词：多跳MIMO-OFDM中继系统 拉格朗日乘子法 注水算法 端到端吞吐量 

分 类 号：TN929.5[电子电信—通信与信息系统]