Graceful degradation over packet erasure channels through forward error correction

被引：36

作者：

Mohr, AE ^{[1
]}

Riskin, EA ^{[1
]}

Ladner, RE ^{[1
]}

机构：

[1] Univ Washington, Seattle, WA 98195 USA

来源：

DCC '99 - DATA COMPRESSION CONFERENCE, PROCEEDINGS | 1999年

关键词：

D O I：

10.1109/DCC.1999.755658

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We present an algorithm that assigns unequal amounts of forward error correction to progressive data so as to provide graceful degradation as packet losses increase. We use the SPIHT coder to compress images in this work, but our algorithm can protect any progressive compression scheme. The algorithm can also use almost any function as a model of packet loss conditions. We find that for an exponential packet loss model with a mean of 20% and a total rate of 0.2 bpp, good image quality can be obtained, even when 40% of transmitted packets are lost.

引用

页码：92 / 101

页数：4

共 20 条

[1] Priority encoding transmission [J].