Research on Unequal Error Protection with Punctured Convolutional Codes in Image Transmission System over Mobile Channels

YUAN Dong-feng; LI Zuo-wei; SUI Ai-fen; NING Ji-ming

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Research on Unequal Error Protection with Punctured Convolutional Codes in Image Transmission System over Mobile Channels

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- Research on Unequal Error Protection with Punctured Convolutional Codes in Image Transmission System over Mobile Channels
- Acta Electronica Sinica Vol. 29, Issue 7, Pages: 996-999(2001)
- 作者机构：
  
  1. 山东大学信息科学与工程学院,山东,济南,250100
  2. 山东大学国际交流学院,山东,济南,250100
  3. 山东大学信息科学与工程学院山东济南,250100
  4. 山东大学国际交流学院山东济南,250100
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.5
- Published：2001
- 稿件说明：
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YUAN Dong-feng, LI Zuo-wei, SUI Ai-fen, et al. Research on Unequal Error Protection with Punctured Convolutional Codes in Image Transmission System over Mobile Channels[J]. Acta Electronica Sinica, 2001, 29(7): 996-999.
DOI：

YUAN Dong-feng, LI Zuo-wei, SUI Ai-fen, et al. Research on Unequal Error Protection with Punctured Convolutional Codes in Image Transmission System over Mobile Channels[J]. Acta Electronica Sinica, 2001, 29(7): 996-999. DOI：

摘要

本文以移动信道的四状态Markov模型为基础

将Punctured卷积码(Punctured Convolutional Codes;PCC)用于快衰落移动信道下的图像传输系统中

提出了通过对码率、母码约束长度和交织度这三种不同自由度的调整

实现图像传输的不等错误保护(Unequal Error Protection;UEP)方案.计算机模拟结果表明

所提出的方案具有明显的不等错误保护能力

可以满足在具有不等错误保护要求的移动环境下对传输图像质量的要求.

Abstract

In this paper

the 4-state Markov model is made as the long-bursting error possibility model of mobile channels

and punctured convolutional codes (PCC) are applied to image transmission system over mobile fast-fading channels.We propose a new scheme of unequal error protection (UEP) in image transmission by means of adjusting different code rates

constraint lengths of mother codes and interleaving degrees.Simulation results show the superiority of UEP directy.

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