Evaluation of protocols and algorithms for improving the performance of TCP over wireless/wired network

Abstract

Transmission Control Protocol (TCP), it is an Internet Protocol which is designed for relatively reliable wire line network; it has another name called Transfer Control Protocol. It is known to perform poorly in the presence of wireless links because of its basic assumption that any loss of a data segment is due to congestion and consequently it invokes congestion control measures. However, in wireless access links a large number of losses are occurred due to wireless link errors or host mobility. For this reasons, many researchers are working to improve TCP performance in such environment. In this paper WTCP's performance is compared with TCP and WAP, Vegas showed a better performance in WTCP over TCP algorithms Vegas and New Reno. This results show that WTCP significantly improves the throughput of TCP connections due to its unique feature of hiding the time spent by the base station. © 2011 Springer-Verlag.