Joint source and channel coding using turbo codes over rings

被引:18
作者
Ruscitto, A [1 ]
Biglieri, EM [1 ]
机构
[1] Politecn Torino, Dipartimento Elettr, I-10129 Turin, Italy
关键词
image coding; source and channel coding; turbo codes;
D O I
10.1109/26.705390
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
Turbo codes are a practical solution for achieving large coding gains. In this letter we present a new turbo coding scheme where the component codes are convolutional codes (CC's) over the ring of integers module M, with M being the alphabet size of the source encoder. The a priori knowledge of the source statistics is used during the iterative decoding procedure for improved decoder performance. As an example of application, we examine differential pulse code modulation (DPCM)-encoded image transmission.
引用
收藏
页码:981 / 984
页数:4
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