ENHANCEMENT OF TRANSMISSION CONTROL PROTOCOL (TCP) OVER AN AD-HOC NETWORK

Abstract

TCP/IP is the standard networking protocol on the internet and is also the most widely used. Due to these reason, its use over mobile Ad-Hoc networks is a certainty. Transport connections set up in wireless ad-hoc network are suffered by problems such as high bit error rates, frequent route changes, and partition. Ad-Hoc networks are peer to peer, autonomous network comprised of wireless mobile device. Ad-Hoc networks are prone to link failures due to node mobility. If we run transmission control protocol (TCP) over such connections, the throughput of the connection is observed to be extremely poor since TCP is unable to distinguish between losses due to route failures and losses due to congestion. As a result, throughput degrades significantly when nodes are move and routes disconnected. Since all nodes are movable in a wireless ad-hoc network, route re-construction procedures are frequently invoked during data transmission due to node movements. Moreover, route failure is unavo...