Abstract
Available bandwidth is the main parameter to reflect the network status,of which the accurate measurement and estimation is an essential problem in traffic engineering and network monitoring.And there are many difficulties in its actual measurement.For Spruce,it converges slowly and needs high overhead.To solve the problems,Wspruce,an improved method of measuring available bandwidth was proposed.By using Hidden Markov Model(HMM)-series prediction features,more accurate analysis can be made on the available bandwidth.The actual measurements show that the method for estimating the available bandwidth measurement is faster,and of lower overhead.
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