An Adaptive Slow Start Algorithm of TCP Vegas for Large BDP Networks;

The traditional TCP congestion control algorithm has a poor performance in high bandwidth-delay product(HBDP) and wireless link.

In order to solve the problem of sharp decline in performance which exists in Drop Tail gateways and to find a novel algorithm that is easy to implement and can adapt parameters according to the variation of network,an active queue management(AQM) algorithm with explicit congestion notification(ECN) named bandwidth-delay product queue(BDPQ) is proposed.

The results of simulation demonstrate that the eXplicit control protocol remains efficient,fair and stable in the large bandwidth-delay product networks.