Performance Evaluation of Routing Protocols in MANETs with Variation in Pause Time

With the advancement in technology, there is a need for dynamically changing network applications for efficient, seamless, and last mile connectivity for a cost effective solution. In mobile ad hoc networks (MANETs), the function and location of the randomly connected mobile nodes keep on changing based on the user necessity. The seamless and longer duration network connectivity depends upon mainly on density of nodes, their mobility, speed, pause time, and transmission power. In this research work, three routing protocols (RP), i.e., (i) Ad hoc on demand distance vector (AODV) (ii) dynamic source routing (DSR) (iii) optimized link state routing (OLSR) have been evaluated on a designedMANETnetwork scenario for 80, 100 and 120 nodes at different pause time. Throughput, average jitter, and average MAC delay have been taken as the performance metrics with random waypoint mobility model (RWMM) and constant bit rate (CBR) as the traffic application. With increase in pause time, the OLSR RP shows superior performance in terms of both throughput and average jitter. The average MAC delay of OLSR does not get affected much even with the increase in node density, and thus outperforms the other two RP.