摘要
对两种基于UDP实时流媒体拥塞控制机制——探讨基于丢包率的控制和基于往返时延(Round-trip Time,RTT)的控制,提出一种在接收端通过单向延时预测拥塞的算法。与前两种拥塞驱动机制相比,单向时延自适应拥塞控制算法(AOWDCC)最大限度地缩短了拥塞反馈时间间隔,拥塞判断的实时性大大增强。采用NS模拟器,对基于丢包率的拥塞控制、基于RTT的拥塞控制和AOWDCC算法的性能进行仿真,验证了AOWDCC的优越性。
This paper analyzes and discusses two congestion control mechanism in the continuous media stream communications in which UDP Is used. one is based on loss-rate, the other is based on RTT, and it points out each deficiency. It proposes a congestion control mechanism AOWDcC bascd on one way delay. Test in network simulate proves the superiority of the mechanism.
出处
《计算机工程》
CAS
CSCD
北大核心
2007年第11期110-112,131,共4页
Computer Engineering
关键词
拥塞控制
往返时延
单向时延
实时多媒体通信
AOWDCC
Congestion control
Round-trip time（RTT）
One-way delay
Real-time multimedia communication
Adaptive one-way delay congestion control（AOWDCC）
