Adaptive algorithm based on RTT for improving wireless TCP performance
Jun Liu · Jisuanji gongcheng yu sheji · 2012
The performance of TCP is hardly degraded due to very well known problems characteristic of wireless transmissions,so TCP Reno algorithm is researched and an improved algorithm based on adaptive RTT is proposed.The key idea of this improved algorithm adjusts CWND and SSTHRESH for packets losses according to RTT.Consequently,the improved algorithm can differentiate the wireless packet losses from the congestion packet losses effectively.Algorithm analysis shows the feasibility of the new algorithm,its throughput,band with utilization ratio,and fairness is evaluated by NS simulation.Compared with TCP Reno,the simulation results show the improved algorithm achieves significant improvements in throughput and maintains the fair and friendly behavior with respect to other TCP flows.