计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (7): 89-92.DOI: 10.3778/j.issn.1002-8331.2009.07.028

• 研发、设计、测试 • 上一篇    下一篇

MIMO-CDMA子选择系统设计及性能分析

陈绪君,刘守印,胡君红   

  1. 华中师范大学 电子与信息工程系,武汉 430079
  • 收稿日期:2008-01-24 修回日期:2008-05-15 出版日期:2009-03-01 发布日期:2009-03-01
  • 通讯作者: 陈绪君

Design and performance of MIMO-CDMA antenna selection sub-system

CHEN Xu-jun,LIU Shou-yin,HU Jun-hong   

  1. Department of Electronic Information Engineering,Central China Normal University,Wuhan 430079,China
  • Received:2008-01-24 Revised:2008-05-15 Online:2009-03-01 Published:2009-03-01
  • Contact: CHEN Xu-jun

摘要: 多用户MIMO-CDMA是MIMO技术领域研究的最新成果,MIMO-CDMA系统可以显著地提高系统的容量和BER性能。但系统复杂度高,而天线选择技术可以大大降低MIMO-CDMA系统实现复杂度。设计了一种基于帧结构的MIMO-CDMA接收端子选择系统仿真平台,分析和比较了在MBER、MMI和MNP等不同选择准则条件下的系统性能,并对仿真结果进行了评价。

关键词: 码分多址MIMO, 天线选择, 最小二乘估计

Abstract: Multi-user MIMO-CDMA is new technology in MIMO research areas.Capacity and BER performance can be remarkably enhanced in MIMO-CDMA system.Because of high complexity for DSP realization of MIMO system,antenna selection is low-complexity alternative for real MIMO-CDMA system.Multi-user MIMO-CDMA antenna selection Sub-system is introduced in the paper.A simulate Model based on frame structure of multi-user MIMO-CDMA antenna selection sub-system for DSP is designed.Performance in different selection rules,such as MBER,MMI and MNP,is analyzed and compared.Evaluation of simulation result is given.

Key words: MIMO-CDMA, antenna selection, Least Squares(LS) estimation