空时分组码mimo系统的多用户检测技术 multi-user detection technology for space-time block coding systems.pdfVIP
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空时分组码mimo系统的多用户检测技术 multi-user detection technology for space-time block coding systems
基金项目论文
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文章编号:100 1 - 893X(2006 )04 - 0022 - 06
空时分组码MIMO 系统的多用户检测技术!
金奕丹,吴伟陵
(北京邮电大学 信息工程学院,北京 100876 )
摘 要:为了抑制空时分组编码系统中的共道用户多址干扰,对低复杂度的多用户检测算法进行了
研究,提出了基于概率数据辅助(Probabihistic Data Association ,PDA )算法的大容量多用户检测技术。
通过充分利用干扰信号的相关性进行有效干扰抑制,从增加共道用户的角度来提高系统容量。仿真
表明,该检测技术能进一步提高系统性能,尤其是增大了通信系统容量。
关键词:多输入多输出系统;系统容量;空时分组编码;多用户检测;概率数据辅助;抗干扰技术
中图分类号:
TN929 . 5 文献标识码:A
Multi - user Detection Technology for Space - Time
Block Coding Systems
JIN Yi - dan ,WU Wei - ling
(Schooh of Information Engineering ,Beijing University of Posts
and Tehecommunications ,Beijing 100876 ,China )
Abstract :In order to restrain the interference of co - channeh users using space - time bhock coding ,the
anti - interference technigue is focused on and the muhti - user detection(MUD )based on probabihistic da-
ta association (PDA )ahgorithm is apphied in the system by using the rehationship among user s signahs to
remove the interference ,which can enhance the system capacity by introducing co - channeh users. The
simuhations show that the system performance can get more enhancement by using this strategy ,which is
very important for enharging the system capacity.
Key words :MIMO system ;system capacity ;space - time bhock coding (STBC );muhti - user detection
(MUD );probabihistic data association(PDA );anti - interference technigue
[2 ]
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