Adaptive MLSE Receiver in Fast Fading Channel

SONG Liang; HU Bo; LING Xie-ting

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Adaptive MLSE Receiver in Fast Fading Channel

更新时间：2025-07-16

- Adaptive MLSE Receiver in Fast Fading Channel
- Acta Electronica Sinica Vol. 30, Issue 5, Pages: 723-726(2002)
- 作者机构：
  
  复旦大学电子工程系,上海,200433
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.25
- Published：2002
- 稿件说明：
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SONG Liang, HU Bo, LING Xie-ting. Adaptive MLSE Receiver in Fast Fading Channel[J]. Acta Electronica Sinica, 2002, 30(5): 723-726.
DOI：

SONG Liang, HU Bo, LING Xie-ting. Adaptive MLSE Receiver in Fast Fading Channel[J]. Acta Electronica Sinica, 2002, 30(5): 723-726. DOI：

摘要

在移动通信系统中

由于衰落和多普勒效应

为了实现基于Viterbi算法的极大似然序列估计(MLSE)

需要不断跟踪信道参数变化.本文首先提出了一种新的基于插值的信道估计方法ICP(Interpolating channel processing)

并给出了该方法的两种实现形式

同已有的一些算法的比较结果表明:新方法具有更小的计算复杂度

误码率更低.同时

本文对如何降低Viterbi算法(VA)的计算复杂度也作了探讨.通过采用自适应减小计算复杂度的算法(ATA)

本文提出的ICP算法具有更优的性能.

Abstract

In mobile communication system

a continuous channel estimation and tracing method is needed to implement the Viterbi algorithm of MLSE because of fading and Doppler effect.In this paper

we propose a novel MLSE receiver based on interpolating channel processing (ICP).To reduce the computational complexity of VA

we use an effective method named-adaptive threshold algorithm (ATA).A comparison in performance and computational cost is given with two other reference algorithms:Per-survivor Processing and Minimum Survivor Processing.

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Related Institution

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