| 基于实时传输协议的丢包实时修复 |
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| 引用本文： | 张钶,谢忠诚,鞠九滨.基于实时传输协议的丢包实时修复[J].软件学报,2001,12(7):1042-1049. |
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| 作者姓名： | 张钶 谢忠诚 鞠九滨 |
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| 作者单位： | 吉林大学计算机科学系, |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目(1999018319) |
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| 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.
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| 关 键 词： | RTP(real-time transport protocol) 丢包 修复 FEC(forward error correction) |
| 文章编号： | 1000-9825200112(07)1042-08 |
| 收稿时间： | 1999/12/23 0:00:00 |
| 修稿时间： | 1999年12月23 |
Real-Time Repairing Lost Packets Based on Real-Time Transport Protocol |
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| ZHANG Ke,XIE Zhong cheng and JU Jiu bin.Real-Time Repairing Lost Packets Based on Real-Time Transport Protocol[J].Journal of Software,2001,12(7):1042-1049. |
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| Authors: | ZHANG Ke XIE Zhong cheng and JU Jiu bin |
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| 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. |
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| Keywords: | RTP (real time transport protocol) packet loss lost repairing FEC (forward error correction) |
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