一种新的IP语音自适应FEC损耗控制算法

Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086) Pub Date : 2000-02-20 DOI:10.1109/PCCC.2000.830332

Chinmay Padhye, Kenneth J. Christensen, Wilfrido Moreno

{"title":"一种新的IP语音自适应FEC损耗控制算法","authors":"Chinmay Padhye, Kenneth J. Christensen, Wilfrido Moreno","doi":"10.1109/PCCC.2000.830332","DOIUrl":null,"url":null,"abstract":"Packet loss causes degradation in the quality of voice over IP (VOIP) applications. Forward error correction (FEC) methods which add redundant information to voice packets can be used to minimize the effects of packet loss. While these methods can reduce the effects of packet loss, they increase the amount of bandwidth used by a voice stream. This paper builds on existing work in adaptive FEC control algorithms to better control the amount of redundancy. The new adaptive FEC \"USF algorithm\" considers the history of packet losses in the network before changing the amount of redundancy and also does not react to burst losses. The performance of the USF algorithm is studied using a simulation model. The USF algorithm is able to maintain a loss rate one-half to one-third the loss rate maintained by the current algorithm for Internet traces and for network loss rates between 7% and 20% for synthetic traces.","PeriodicalId":387201,"journal":{"name":"Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"94","resultStr":"{\"title\":\"A new adaptive FEC loss control algorithm for voice over IP applications\",\"authors\":\"Chinmay Padhye, Kenneth J. Christensen, Wilfrido Moreno\",\"doi\":\"10.1109/PCCC.2000.830332\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Packet loss causes degradation in the quality of voice over IP (VOIP) applications. Forward error correction (FEC) methods which add redundant information to voice packets can be used to minimize the effects of packet loss. While these methods can reduce the effects of packet loss, they increase the amount of bandwidth used by a voice stream. This paper builds on existing work in adaptive FEC control algorithms to better control the amount of redundancy. The new adaptive FEC \\\"USF algorithm\\\" considers the history of packet losses in the network before changing the amount of redundancy and also does not react to burst losses. The performance of the USF algorithm is studied using a simulation model. The USF algorithm is able to maintain a loss rate one-half to one-third the loss rate maintained by the current algorithm for Internet traces and for network loss rates between 7% and 20% for synthetic traces.\",\"PeriodicalId\":387201,\"journal\":{\"name\":\"Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086)\",\"volume\":\"18 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-02-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"94\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PCCC.2000.830332\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PCCC.2000.830332","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 94

摘要

丢包会导致VOIP (voice over IP)应用的质量下降。前向纠错(Forward error correction, FEC)是一种向语音报文中添加冗余信息的方法，可以将丢包的影响降到最低。虽然这些方法可以减少丢包的影响，但它们增加了语音流使用的带宽量。本文建立在已有的自适应FEC控制算法的基础上，以更好地控制冗余量。新的自适应FEC“USF算法”在改变冗余量之前考虑了网络中数据包丢失的历史，并且对突发丢失也没有反应。利用仿真模型研究了USF算法的性能。对于Internet走线，USF算法能够将损失率维持在当前算法的一半到三分之一，对于合成走线，网络损失率在7%到20%之间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

A new adaptive FEC loss control algorithm for voice over IP applications

Packet loss causes degradation in the quality of voice over IP (VOIP) applications. Forward error correction (FEC) methods which add redundant information to voice packets can be used to minimize the effects of packet loss. While these methods can reduce the effects of packet loss, they increase the amount of bandwidth used by a voice stream. This paper builds on existing work in adaptive FEC control algorithms to better control the amount of redundancy. The new adaptive FEC "USF algorithm" considers the history of packet losses in the network before changing the amount of redundancy and also does not react to burst losses. The performance of the USF algorithm is studied using a simulation model. The USF algorithm is able to maintain a loss rate one-half to one-third the loss rate maintained by the current algorithm for Internet traces and for network loss rates between 7% and 20% for synthetic traces.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086)

自引率

0.00%

发文量