Performance Analysis of Simple TCP and F-TCP for Smooth Connectivity in Wireless Communication

Abstract

In wireless communication many packets may be lost during handoff. In conventional wired networks Transmission Control Protocol (TCP) is used. But in case of wireless communication TCP needs to be modifies according to the environment because if a packet drops during communication it reduces the congestion window sizes excessively due to congestion. To overcome this problem many extension in TCP has been proposed. The purpose of this research is to analyze the performance of TCP and Freeze -TCP in the wireless environment. The simulation was done using Network Simulator-2 (NS-2) for both the TCP and Freeze-TCP for managing the mobility and handoffs and the result was compared according to the performance. The simulation is categorized in to two scenarios Varying Window Size, Varying Segment Size on the basis of window and segment sizes. Each scenario consist of three window sizes and three segment sizes. For each and every scenario the performance of TCP and Freeze-TCP are analyzed and compared. The result shows that for managing the handoffs in mobile wireless communication the F-TCP performs better than that of simple TCP.