多用户下行多天线系统传输技术的研究  

Research on Downlink Transmission Technique for Multiuser Multiple Antenna System

作　　者：高伟[1] 张佳利[2] 郑海波[1] 

机构地区：[1]海军航空工程学院青岛分院,山东青岛266041 [2]海军飞行学院,辽宁葫芦岛125001

出　　处：《现代电子技术》2008年第19期13-15,18,共4页Modern Electronics Technique

摘　　要：多用户下行多天线系统的传输技术的研究是无线通信领域极为重要和活跃的研究方向。首先介绍了多用户下行MIMO系统的信道容量,然后分别讨论了基站端已知完全信道状态信息和部分信道状态信息情况下的传输技术。总结和分析了当前国内外多用户下行多天线系统传输技术中各种算法的优点和局限性,给出了进一步研究的热点和方向。Downlink transmission technique for multiuser multiple antenna systems is a very important and well -studied in field of wireless communication. Firstly,the channel capacity of downlink multiuser MIMO systems is discussed and then the transmission technique is introduced when the base station knows users＇ full channel state information and partial channel state information. Finally, the merits and limitations of various algorithms in downlink transmission techniquea are summarized and analysed. The further hotspots and aspects are presented.

关 键 词：多用户多天线系统 下行传输技术 信道容量 信道状态信息 

分 类 号：TN929.5[电子电信—通信与信息系统]