MIMO空时处理关键技术  

Key Technologies of Spatial-Temporal Signal Processing for MIMO Systems

作　　者：蒋新聪[1] 申敏[1] 陈丹[1] 刘琳[1] 

机构地区：[1]重庆邮电大学移动通信重点实验室,重庆400065

出　　处：《山西电子技术》2007年第6期59-60,共2页Shanxi Electronic Technology

基　　金：2004年国家高技术研发发展计划(863)课题(2004AA12350);2004年国家"863"引导项目(2004AA001390)

摘　　要：MIMO无线传输技术是通信领域的一项重要技术突破,它能在不增加带宽与功率的情况下成倍地提高无线通信系统的容量和频谱效率,是新一代无线通信系统中的关键技术之一。本文探讨了MIMO系统中常用的几种空时处理的关键技术,主要包括MIMO信道建模、波束赋形、空时编码、空间复用等,及其这些技术所面临的问题以及进一步的发展方向。Multiple-input multiple-output radio transmission technology, which has the potential to multiply system capacity and improve spectral efficiency without requiting extra bandwidth and power, is an important technical breakthrough and promises to be one of the key technologies for future wireless communication systems. This paper presents several key spatial-temporal signal processing technologies in MIMO systems, mainly including MIMO channel modeling, beamforming, space-time coding and space multiplexing. It also discusses some problems of these technologies and future evolution.

关 键 词：MIMO信道建模 波束赋形 空时编码 空间复用 

分 类 号：TN929[电子电信—通信与信息系统]