Comparative Study on the Performance of TFRC and SCTP Over AODV in MANET

Abstract

This study aims for comparative study on the performance of two transport protocols in MANET environment, i.e. TFRC and SCTP. As one of the features in TFRC, fairness attracts real time applications, whereas multihoming and multi-streaming features in SCTP attract multimedia applications to use it as their transport protocol instead of TCP and UDP. However, the challenge faced by TFRC which uses additive increase is to adjust the sending rate during periods with no congestion which may lead to the short term congestion that can degrade the quality of voice applications. On the other hand, SCTP faces challenges in the best-effort network. The simulation study is conducted in two scenarios; the first one is without the presence of background traffic which is single traffic, while the second one is with the presence of background traffic, which is non-single traffic. In the simulation using ns-2 simulator, the mobility of the nodes is set random and the traffic type is CBR. In both scenarios, SCTP has better performance in terms of throughput, whereas TFRC has less delay than SCTP. AODV was chosen as a routing protocol for TFRC and SCTP with throughput and delay as the performance metrics.