| 一种改进的多速率组播拥塞控制协议DAMCC |
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| 引用本文： | 薛建生,冯东晖,孙旭红,宋宝燕.一种改进的多速率组播拥塞控制协议DAMCC[J].计算机应用,2009,29(10). |
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| 作者姓名： | 薛建生 冯东晖 孙旭红 宋宝燕 |
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| 作者单位： | 1. 辽宁大学,信息学院,沈阳,110036
2. 日本鸟取大学,智能情报工学科,日本,鸟取,680-8552 |
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| 基金项目： | 国家自然科学基金资助项目，辽宁省高等学校科研资助项目 |
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| 摘 要： | 提出了一种新的动态分配带宽的多速率组播拥塞控制策略(DAMCC).针对当前使用的多速率组播拥塞控制策略RLC调整速率粒度粗糙、接收端带宽的利用不充分的问题,DAMCC设计了动态分段计算增强层的速率算法.执行DAMCC的接收端,根据反馈的响应信息计算网络往返延迟(RTT),进而计算自身的TCP友好速率,以相应的速率接收组播数据,达到与TCP流公平竞争网络资源的目的.仿真实验表明,该拥塞控制策略比分层组播控制常用的典型策略(RLC)更有效地利用网络带宽,解决网络带宽的异构性问题,并能通过接收端计算TCP友好速率,使接收端达到与TCP流公平竞争网络资源的目的.
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| 关 键 词： | 多速率组播 拥塞控制 速率分层 带宽利用 TCP友好流 |
DAMCC: Improved multi-rate multicast congestion control protocol |
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| XUE Jian-sheng,FENG Dong-hui,SUN Xu-hong,SONG Bao-yan.DAMCC: Improved multi-rate multicast congestion control protocol[J].journal of Computer Applications,2009,29(10). |
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| Authors: | XUE Jian-sheng FENG Dong-hui SUN Xu-hong SONG Bao-yan |
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| Affiliation: | XUE Jian-sheng1,FENG Dong-hui1,SUN Xu-hong2,SONG Bao-yan1(1.College of Information,Liaoning University,Shenyang Liaoning 110036,China,2.Department of Computer Science,Japanese Tottori University,Tottori 680-8552,Japan) |
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| Abstract: | A new Dynamic Allocation bandwidth strategy for Multicast Congestion Control(DAMCC) was put forward.Concerning the current problems of adjusting the rate of granularity roughly and inadequate application about the Receiver-driven Layered Congestion control(RLC),this strategy designed an algorithm,which can calculate the rate of the enhancement layer dynamically and separately.The receiver of the strategy of DAMCC can calculate the value of the Round-Trip Time(RTT) according to the feedback response informat... |
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| Keywords: | multi-rate multicast congestion control stratified rate bandwidth usage TCP friendly flow |
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