通信学报 ›› 2007, Vol. 28 ›› Issue (4): 24-31.doi: 1000-436X(2007)04-0024-08

• 学术论文 • 上一篇    下一篇

双选择性信道条件下MIMO-OFDM系统中的ICI抑制及频域Turbo均衡

杨炜伟1,蔡跃明1,2   

  1. 1 解放军理工大学 通信工程学院,江苏 南京 210007
    2 东南大学 移动通信国家重点实验室,江苏 南京 210096
  • 出版日期:2007-04-25 发布日期:2017-06-26
  • 基金资助:
    东南大学移动通信国家重点实验室开放研究基金资助项目;江苏省自然科学基金资助项目

ICI suppression and frequency-domain Turbo equalization for MIMO-OFDM systems over doubly-selective channels

Wei-wei YANG1,Yue-ming CAI1,2   

  1. 1 Institute of Communications Engineering of PLAUST, Nanjing 210007, China
    2 Nation Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
  • Online:2007-04-25 Published:2017-06-26
  • Supported by:
    Nation Mobile Communications Research Laboratory Fund Project;The Natural Science Foundation of Jiangsu Province

摘要:

分析了双选择性信道条件下MIMO-OFDM系统的ICI产生原理,提出了一种以最大化缩短信干噪比(MSSINR, maximum shortening the signal to inter-carrier interference plus noise ratio)为目标的频域ICI抑制算法及其简化算法;在此基础上将Turbo均衡技术应用到MIMO-OFDM系统中,提出了一种基于MSSINR频域ICI抑制的频域Turbo均衡(FTE ,frequency-domain Turbo equalization)算法,并进行了数值仿真和比较分析。

关键词: 正交频分复用, 多输入多输出, 载间干扰抑制, 频域Turbo均衡

Abstract:

Based on the analysis of the ICI generation mechanism for MIMO-OFDM systems over doubly-selective chan-nels, a novel frequency-domain ICI suppression scheme and its reduced complexity scheme were proposed, aiming to maximum shortening the signal to inter-carrier interference plus noise ratio (MSSINR). Additionally, the Turbo equaliza-tion to MIMO-OFDM systems was applied over doubly-selective channels, and a new frequency-domain Turbo equaliza-tion (FTE) scheme was proposed based on frequency-domain ICI suppression. Numerical results were also presented to compare the performance among different schemes.

Key words: OFDM, MIMO, inter-carrier interference suppression, frequency-domain Turbo equalization

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