Measurement Algorithm for Available Bandwidth with Real-Time Rate
The packet transmission rate(PTR)algorithm is an active probing algorithm,which sends several probing packets to detect background traffic.The PTR algorithm compares the time interval at the source with that of destination,and uses the time interval to estimate the available bandwidth.But the PTR algorithm cannot consider the instability of the background traffic and the losses of the probing packets have been lost by the transmission process.In this paper,we improve the PTR algorithm.We first adjust the transmission rate and fix the time interval for probing packets,and second we match probing packet number and record time interval of probing packets with source and destination to resolve the problem of packets lost.Finally,we do experiments to compare our algorithm with PTR algorithm,the result shows our algorithm is more accurate then PTR algorithm.
Available bandwidth background traffic probing packet
Yi Yin Weidong Wu
Wuhan University of Science and Technology,Wuhan,P.R.China
国际会议
武汉
英文
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）