北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2005, Vol. 28 ›› Issue (6): 52-56.doi: 10.13190/jbupt.200506.52.zhangqr

• 论文 • 上一篇    下一篇

减格算法在LASMAX系统中的性能分析

张庆荣1,2 ,王刚1,孙宇昊1,李道本1   

  1. 1北京邮电大学 信息工程学院, 北京 100876; 2江南大学 通信与控制工程学院, 无锡 214122
  • 出版日期:2005-12-28 发布日期:2005-12-28

Performance Analysis of Lattice Reduction Algorithm in LASMAX Systems

ZHANG Qingrong1,WANG Gang2,SUN Yuhao2,LI Daoben2   

  1. 1School of Communication and Control Engineering, Southern Yangtze University, Wuxi 214122, China; 2School of Information Engineering, Beijing University of Posts and Telecommunicaitons, Beijing 100876, China
  • Online:2005-12-28 Published:2005-12-28

摘要:

将减格(LR)算法与常规迫零(ZF)算法结合,应用到具有丰富多径的码分多址(CDMA)移动通信环境中. 分析和仿真了LR辅助的ZF(LR -ZF)算法在1个具体系统LASMAX中的性能,结果显示这个新算法在运算复杂度开销增加不大的情况下,仍然能够很大程度地改善系统性能,特别是在高信噪比的情况下. 因此,LR算法在移动多径环境中仍然可以用来提高系统的性能.

关键词: 大区域同步, 微波接入, 码分多址, 多入多出, 迫零, 减格 -迫零

Abstract:

The lattice reduction (LR) aided schemes were adopted in the zero forcing (ZF) algorithm (LR ZF) in rich multipath mobile communication environments of code division multi-access (CDMA) systems. The performance of LRZF was simulated and analyzed in LASMAX systems. The results verify that the systems' performance is improved highly, particularly in high SNR, at the expense of a little complexity increase. So LR algorithm can be adopted in mobile communication systems with multipath channel.

Key words: large area synchronous, microwave access, code division multiaccess; multi input multioutput; zero forcing; lattice reduction aided zero forcing

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