Paper Title
Study Of Tcp Variants Over Wireless Network

Abstract
The performance of wireless ad-hoc networks is affected extensively by TCP; the magnitudes of lost packets are usually high under TCP due to congestion. In a mobile ad hoc network, temporary link failures and route changes occur frequently, with the assumption that all packet losses are due to congestion, TCP performs poorly in such an environment. TCP was designed specifically for wired, reliable network thus, any packet loss is attributed to congestion in the network. Transport Control Protocol (TCP), a basic communication language, consists of a set of rules that control communication. There are many improved versions of TCP, which were designed time to time as per necessities. This paper reveals the study of different TCP variants specifically Tahoe, Reno, New Reno, Selective Acknowledgment (SACK) and TCP Vegas. TCP New Reno algorithm and TCP Vegas are explained with new structure mechanism and new congestion avoidance and modified slow start mechanisms. This paper also presents a comparative analysis of TCP variants on the basis of algorithm. Keywords- Congestion Avoidance, Tahoe, Reno, New Reno Fast Recovery, Fast Retransmission and Slow Start, Mobile Ad-hoc Network