A Joint Source Channel Coding based on Wavelet Transform and Vector Quantization

被引：0
|
作者：
Wang, Shan [1 ]
Yang, Qing [2 ]
机构：
[1] ECJTU, Sch Informat, Dept Engn, Nanchang 330013, Peoples R China
[2] NIT, Dept Elect & Elect Engn, Nanchang 330099, Jiangxi, Peoples R China
来源：
PROCEEDINGS OF THE 14TH YOUTH CONFERENCE ON COMMUNICATION | 2009年
关键词：
joint source channel coding; DWT; vector quantization; modulation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this article we propose a new joint encoding, this encoding is aimed, in the still image transmission to improve its environment in very bad situation (BER> 10-3) received results of visual images, and make full use of the communication system resources to achieve the best effect of end-to-end communications. This new joint code is based on wavelet transform, we've used vector quantizations from codebooks built with self-organizing maps (SOM algorithm), these codebooks can be superimposed on constellations of quadrature amplitude modulation (QAM).
引用
收藏
页码：764 / +
页数：2
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