Performance Comparison of TCP Variants in Mobile Ad- Hoc Networks

Mobile Ad-Hoc networks (MANETs) are characterized by self organized, adaptive and multihop wireless link; frequently changing network topology due to mobility support. Transmission Control Protocol (TCP) is connection oriented, reliable, congestion control and end to end mechanism. In TCP due to network congestion and link failure packets are losses and TCP tries to control this loss. In this article we present the performance comparison of existing TCP variants: TCP Tahoe, Reno, Lite, and New Reno for mobile ad-hoc networks. The behavior of TCP was different depending on the type of TCP variants because of improper activation or missing of congestion control. This analysis and comparisons are necessary to be aware of which TCP implementation is better for a specific scenario.