Performance of Multiple TCP Connections over Different Routing Protocols in Mobile Ad-hoc Networks

AbstructAn ad hoc network is a collection of wireless mobile nodes dynamicmy forming a temporary network without the use of any existing network infrastructure or centralized administration. Various ad-hoc routing protocols have been proposed in literature such as Destination Sequenced Distance Vector (DsDv), ad-hoc On-demand mbow Vector (AODV) and Dynamic source Routing 0 s ~ ) . TCPlLP is the most widely used transport protocol for data of a fixed infrastructure. There is a direct communication among neighbouring devices but communication between non-neighbouring device. requires a routing algorithm. A lot of work bas been done on routing protocols since they are critical to the functioning of ad-hoc networks. Various Routing Protocols have been proposed in literature such as Destination Sequenced Distance Vector @SDV), Adservices such as file transfer (ftp), email and www browsing. Due to these reasons, its use over mobile ad-hoc networks is a certainty. TCP primarily designed for wireline networks, faces performance degradation when applied to the ad-hoc sceyrio. Earlier work focussed on comparing the performance of different routing protocols with a single TCP connection. In this paper, we study the performance of mutiple TCP connections over various ad-hoc routing protocols. The performance metrics of interest are the TCP throughput and the coefficient of fairness.