Modified Joint Source–Channel Trellises for Transmitting JPEG Images over Wireless Networks

Yin-Chen Lin; Jyun-Jie Wang; Sheng-Chih Yang; Chi-Chun Chen

doi:10.3390/app14062578

Applied Sciences (Mar 2024)

Modified Joint Source–Channel Trellises for Transmitting JPEG Images over Wireless Networks

Yin-Chen Lin,
Jyun-Jie Wang,
Sheng-Chih Yang,
Chi-Chun Chen

Affiliations

Yin-Chen Lin: Graduate Institute, Prospective Technology of Electrical Engineering and Computer Science, National Chin-Yi University of Technology, Taichung 41170, Taiwan
Jyun-Jie Wang: Department of Computer Science and Information Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan
Sheng-Chih Yang: Graduate Institute, Prospective Technology of Electrical Engineering and Computer Science, National Chin-Yi University of Technology, Taichung 41170, Taiwan
Chi-Chun Chen: Graduate Institute, Prospective Technology of Electrical Engineering and Computer Science, National Chin-Yi University of Technology, Taichung 41170, Taiwan

DOI: https://doi.org/10.3390/app14062578
Journal volume & issue: Vol. 14, no. 6
p. 2578

Abstract

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This paper presents a joint source–channel image transmission model based on a modified trellis construction using variable-length and fixed-length codes. The model employs linear block trellis codes and a modified Bahl–Cocke–Jelinek–Raviv algorithm for decoding in the source channel. Additionally, this model utilizes a hierarchical tree and a parity-check matrix to combine the source and channel codes, reducing errors in the decoding process and enabling the decoding of longer sequences without substantial loss of quality.

Published in Applied Sciences

ISSN: 2076-3417 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General); Science: Biology (General); Science: Physics; Science: Chemistry
Website: http://www.mdpi.com/journal/applsci

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