Productive Enhancement In Routing Protocol Based On Network Congestion Dominance Occurs in MANET

Abstract

MANET is determined as a network that has many free autonomous nodes that can move locations and configure itself to various networks and operate without any centralized administration. Some MANETs are restricted to a local area of wireless devices (such as a group of laptop computers), while others may be connected to the Internet. For example, A VANET (Vehicular Ad Hoc Network), is a type of MANET that allows vehicles to communicate with roadside equipment. Because of the dynamic nature of MANETs, they are typically not very secure, so it is important to be cautious what data is sent over a MANET. There are various applications of MANET, In Commercial Sector: e.g. in fire, flood, or earth-quake. Local Level: e.g. conference or classroom. In MANET, congestion can take place between two intermediate nodes, occurs when bandwidth is insufficient and network data traffic exceeds capacity. This paper mainly studies and compares the performance of MANET routing protocols namely PSR, DSR, DSDV and AODV under various traffic loads with various maximum TCP congestion window size to improve congestion control in the routing. The metrics used to compare routing protocol performance are packet delivery ratio, average routing load, the average end-to-end time required with delay and average network throughput and mainly to overcome congestion situation and avoid packet loss in wireless networks.