LTE-Advanced系统中的MIMO技术性能评估  

Performance evaluation of MIMO technology for LTE-Advanced system

作　　者：张祖凡[1] 张红兵[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《重庆邮电大学学报（自然科学版）》2010年第2期140-145,共6页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家科技重大专项(2009ZX03003-006-01;2009ZX03001-004-02);重庆市教委科学技术研究项目(KJ080516);重庆邮电大学科研基金(A2008-07&A2008-51)~~

摘　　要：为了对先进的长期演进技术(long term evolution-advanced,LTE-Advanced)系统中的多输入多输出(multipleinput and multiple output,MIMO)技术的性能进行评估,简单回顾了LTE-Advanced系统中的2种MIMO技术,即空间复用和空间分集,并介绍了一种适合LTE-Advanced系统评估的信道模型-IMT-Advanced(international mobile tele-communications-advanced)信道模型。基于该信道模型,通过系统仿真对以上2种关键MIMO技术进行了性能评估。仿真结果表明,不同的MIMO技术、调制方式、码本、复用率及接收方案都对性能有极大的影响。In order to evaluate the performance of multiple input and multiple output （MIMO） technology for long term evolution-advanced （LTE-Advanced） system, this paper makes a brief review of the two MIMO technologies, namely diversity and multiplexing, and introduces a reasonable channel model for LTE-Advaneed system, namely the ITU-R IMT-Advanced channel model. Based on this channel model, the performance of these two MIMO technologies for LTE-Advanced system was evaluated by simulation. Simulation results show that the different MIMO techniques, modulation, codebook, multiplexing and receive-scheme have a great impact on performance.

关 键 词：先进的长期演进技术(LTE—Advanced) 多输入多输出(MIMO) 信道模型 性能评估 

分 类 号：TN929.5[电子电信—通信与信息系统]