METHOD AND SYSTEM FOR ESTIMATING AVERAGE BANDWIDTH IN A COMMUNICATION NETWORK BASED ON TRANSMISSION CONTROL PROTOCOL

摘要

A method and system for estimating an average bandwidth in a wired/wireless communication network with a time-varying rate are provided. In a TCP network, differences between inter-arrival times and sequence numbers of current and previous Acks are calculated. The estimated bandwidth of the previous Ack and a sample bandwidth of the current Ack are calculated. The inter-arrival time of the current Ack is compared with the inter-arrival time of the previous Ack. A first weight to be multiplied by the estimated bandwidth of the previous Ack and a second weight to be multiplied by the sample bandwidth of the current Ack, according to the comparison, are determined. The bandwidth of the current Ack is estimated by weighting the estimated bandwidth of the previous Ack with the first weight, and weighting the sample bandwidth of the current Ack with the second weight.