Semi-Blind Iterative Receiver for MIMO-OFDM System

WANG Dong-ming; HOU Xiao-yun; YOU Xiao-hu

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Semi-Blind Iterative Receiver for MIMO-OFDM System

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- Semi-Blind Iterative Receiver for MIMO-OFDM System
- Acta Electronica Sinica Vol. 35, Issue 6A, Pages: 88-92(2007)
- 作者机构：
  
  1. 东南大学移动通信国家重点实验室,江苏,南京,210096
  2. 南京邮电大学信号处理与传输研究院,江苏,南京,210003
  3. 东南大学移动通信国家重点实验室,江苏,南京,210096
  4. 南京邮电大学信号处理与传输研究院,江苏,南京,210003
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.5
- Published：2007
- 稿件说明：
移动端阅览
WANG Dong-ming, HOU Xiao-yun, YOU Xiao-hu. Semi-Blind Iterative Receiver for MIMO-OFDM System[J]. Acta Electronica Sinica, 2007, 35(6A): 88-92.
DOI：

WANG Dong-ming, HOU Xiao-yun, YOU Xiao-hu. Semi-Blind Iterative Receiver for MIMO-OFDM System[J]. Acta Electronica Sinica, 2007, 35(6A): 88-92. DOI：

摘要

针对存在多载波窄带干扰的多输入多输出正交频分复用系统

本文提出了基于马尔可夫链蒙特卡罗方法的迭代接收机.该方法不仅可以精确地估计出信道脉冲响应

还可以估计出噪声方差以及脉冲噪声发生的位置

这样接收机能够对窄带干扰区别对待

从而有效提高系统性能.该方法的另一个优点是

易于和软输入软输出译码结合

从而完成Turbo接收.仿真结果表明

在慢衰落信道下

与理想信道状态信息下的接收算法仅有3dB差别.

Abstract

A joint channel estimation and data detection scheme which is based on Markov chain Monte Carlo(MCMC) is proposed for multiple-input multiple output orthogonal frequency division multiplexing(MIMO-OFDM) systems with multi-tone narrow-band interference(MTNBI).The channel impulse response

the noise variance and the indicator of the impulse noise can be estimated accurately

and then the receiver lmows whether th signal is interfered by the narrow band interference.One of the most attractive advantages of MCMC method is that it can cooperate with soft-input soft-ouput decoding

and山us it can be used in Tlubo detection and complete the turbo detection.Simulation results show that compared with the receiver with ideal channel state infotmation

the proposed receiver only has 3dB performance loss under the slow fading channel.

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School of Communication and Information Engineering， Chongqing University of Posts and Telecommunications

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