| 摘要: |
| 在诸如IP电话和远程会议系统等实时应用中,使用实时传输协议RTP(real-timetransportprotocol)在因特网上传输的数据包不可避免地会丢失,极大地影响了传输服务质量.在RTP上增加丢包修复功能可以解决这个问题.介绍了在RTP上采用FEC(forwarderrorcorrection)修复丢包的方法,基于这个方法设计并实现了一个支持丢包修复功能的RTP库,说明了丢包修复功能的测试方法和结果. |
| 关键词: RTP(real-time transport protocol) 丢包 修复 FEC(forward error correction) |
| DOI： |
| 分类号: |
| 基金项目:高等学校博士学科点专项科研基金资助项目(1999018319) |
|
| Real-Time Repairing Lost Packets Based on Real-Time Transport Protocol |
|
ZHANG Ke,XIE Zhong cheng,JU Jiu bin
|
| Abstract: |
| In real-time applications, such as IP phones and remote conference systems utilizing RTP (real\|time transport protocol) for transmitting continuous media data over Internet, packet loss that impairs quality of transmitting severely is inevitable. It is a better way to solve this problem by adding a function of lost repairing to RTP. In this paper, a method of lost repairing with FEC (forward error correction) based on RTP and an RTP library, which was designed and implemented based on this method are introduced. Then a testing method of lost repairing function and the results are illustrated. |
| Key words: RTP （real time transport protocol） packet loss lost repairing FEC （forward error correction） |
