Fuzzy adaptive LS channel estimation for GO-MC-CDMA

WANG Yan1; LIU Hong-li1; ZHAN Jie1

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Fuzzy adaptive LS channel estimation for GO-MC-CDMA

更新时间：2024-10-14

- Fuzzy adaptive LS channel estimation for GO-MC-CDMA
- Vol. 32, Issue 6, Pages: 165-171(2011)
- 作者机构：
  
  1. 湖南大学电气与信息工程学院
  2. 南华大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.533
- Published：2011
- 稿件说明：
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WANG Yan1, LIU Hong-li1, ZHAN Jie1. Fuzzy adaptive LS channel estimation for GO-MC-CDMA[J]. 2011, 32(6): 165-171.
DOI：

WANG Yan1, LIU Hong-li1, ZHAN Jie1. Fuzzy adaptive LS channel estimation for GO-MC-CDMA[J]. 2011, 32(6): 165-171. DOI：

摘要

通过选取部分LS估计初值进行FFT插值来重构信道频域响应

进而补偿模型失配偏差;同时考虑噪声对LS估计算法的影响

分析所选取的LS估计初值数目与均方误差之间的关系。在此基础上研究自动选取最佳估计初值数目的方法

并用模糊算法予以实现。仿真表明

模糊自适应LS信道估计器减小了噪声影响

性能优于传统LS信道估计器。

Abstract

The channel frequency response was constructed by choosing a certain number of the first estimate value which was handled by FFT interpolation.Therefore

the model mismatch error could be compensated effectively.In addition

the relationship between the mean-squared error（MSE） and the number of chosen first estimate value was analyzed by consid-ering the influence of the noise on LS Estimation method.Thus

the optimal criterion for obtaining the optimum number of first estimate value was explored with a fuzzy algorithm.The simulations demonstrate that the fuzzy adaptive LS channel es-timation performs is much better than the traditional LS Channel Estimation and that it is more robust with noise.

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