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应用科学学报 ›› 2004, Vol. 22 ›› Issue (1): 20-24.

• 论文 • 上一篇    下一篇

VBLAST的一种新的解码算法

兰洋, 陈明, 王海峰, 程时昕   

  1. 东南大学移动通信国家重点实验室 江苏南京 210096
  • 收稿日期:2002-11-05 修回日期:2003-04-03 出版日期:2004-03-31 发布日期:2004-03-31
  • 作者简介:兰洋(1977-),男,四川成都人,博士.
  • 基金资助:
    国家863高技术发展重大项目基金资助项目(2002AA123031);诺基亚资助项目

A New Detection Algorithm of VBLAST

LAN Yang, CHEN ming, WANG Hai-feng, CHENG Shi-xin   

  1. National Mobile Communication Research Lab, Southeast University, Nanjing 210096, China
  • Received:2002-11-05 Revised:2003-04-03 Online:2004-03-31 Published:2004-03-31

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106

被引次数

2

摘要： 提出了一种VBLAST的解码算法:组平行干扰抵消GPIC,利用组干扰抑制GIS把系统分解为多个子系统,简化了接收机的复杂度,同时利用多用户检测中的平行干扰抵消PIC (parallelinterferencecancellation),通过增加组间和组内干扰抵消的迭代次数来提高系统的性能.仿真结果表明该算法获得了较好的性能.

关键词: 组平行干扰抵消, 多输入多输出, 垂直的贝尔实验室空时分层结构

Abstract: In this paper, a new detection algorithm for VBLAST——GPIC(group parallel interference cancellation)——is proposed. The detection algorithm of VBLAST, called OSIC (ordered successive interference cancellation), uses linear combination nulling and successive symbol cancellation based on inversing and ordering. The computation complexity is high. GPIC proposed in this paper uses GIS (group interference suppression) to divide a system into several small systems to simplify the receiver and uses PIC to improve performance. The simulation results show that the scheme has a good performance.

Key words: VBLAST, MIMO, group parallel interference cancellation

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