New Way of Improving TCP Performance Based on RTT over Heterogeneous Networks

Because of the development of wireless mobile networks,the topology is complicated and inconstant,the traditional ways of measuring the network parameters are not appropriate any more.This paper uses a new way to measure RTT and has a high accuracy,it not only reflects network changes timely but also filters the noise.It can determine if the network is congested based on the real time analysis of RTT changes after packet loss expires,thus to determine the reason of dropping packets is network congestion or the random error on the wireless networks,then take different measures separately.It uses NS2 to simulate the new way and verify it.