Comparative Analysis of TCP Variants using NS-3.25 and Netanim on Ubuntu Version 16.04 Platform

Abstract

This paper comparatively analyzes maximum throughput for the TCP variants: New Reno, Westwood, HighSpeed & Hybla. All simulations have been performed in NS-3 (version 3.25) simulation tool and packet flow is observed in NetAnim tool on Linux platform. Throughput for each variant is calculated with reference to various varying network parameters which are: router link simulation time, router link bandwidth, number of traffic sources. Analysis was performed using dumbbell topology to find out the comparative maximum throughput of TCP variants. The analysis gives result as TCP Variant "NewReno" is good when low bandwidth is used, while TCP Variant "Hybla" is good in terms of using large bandwidths in comparison to Westwood and HighSpeed. Average throughput is also calculated to find out the best TCP variant.