Expanding Window Fountain Codes for Unequal Error Protection

被引：125

作者：

Sejdinovic, Dino ^{[1
]}

Vukobratovic, Dejan ^{[2
]}

Doufexi, Angela ^{[1
]}

Senk, Vojin ^{[2
]}

Piechocki, Robert J. ^{[1
]}

机构：

[1] Univ Bristol, Ctr Commun Res, Dept Elect & Elect Engn, Bristol, Avon, England

[2] Univ Novi Sad, Dept Commun & Signal Proc, Novi Sad 21000, Serbia

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2009年 / 57卷 / 09期

关键词：

Asymptotic analysis; iterative decoding; maximum-likelihood decoding; rateless codes; unequal error protection;

D O I：

10.1109/TCOMM.2009.09.070616

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：

A novel approach to provide unequal error protection (UEP) using rateless codes over erasure channels, named Expanding Window Fountain (EWF) codes, is developed and discussed. EWF codes use a windowing technique rather than a weighted (non-uniform) selection of input symbols to achieve UEP property. The windowing approach introduces additional parameters in the UEP rateless code design, making it more general and flexible than the weighted approach. Furthermore, the windowing approach provides better performance of UEP scheme, which is confirmed both theoretically and experimentally.

引用

页码：2510 / 2516

页数：7

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