Rod topology Based Performance Analysis of TCP Variants With Routing Protocol

ABSTRACT TCP is being used as a highly reliable end-to-end protocol for transporting applications. TCP was originally designed for wired links where the error rate is really low and actually assumed that packet losses are due to congestion in the network. But TCP performance in wireless networks suffers from significant throughput degradation and delays. TCP uses congestion control and avoidance algorithms which degrades end-to-end performance in wireless systems. In this paper we have analyzed the performance of TCP variants(tahoe, reno,newreno,vegas,westwood,westwoodnr,sack,fack)and routing protocol (aodv,dsdv,dsr,aomdv ) in NS2. The performance of TCP variant for different QOS metrics is studied for rod topology.