TCP Congestion Control Mechanism Based on Network Bandwidth Forecasting
A new method is proposed,which keeps the statistic value (avowed) of the averages of former TCP window size in sending end, uses the value to describe the change of data transmission rate of the TCP connection in a large time scale,regards the value as a prediction of remaining bandwidth,and dynamically adjusts reduction magnitude of congestion window.This method changes the traditional control strategy,which reduces window size by invariable rule, therefore causes control results unconformable with practical situation.It is proved by simulation that the method could make TCP traffic accommodate more exactly to bandwidth,increase the entire data rate,smooth window fluctuation,and improve the quality of transmitting multimedia data streams.