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Inicio  /  Applied Sciences  /  Vol: 14 Par: 6 (2024)  /  Artículo
ARTÍCULO
TITULO

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

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

Resumen

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.

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