END-TO-END SINGLE AND MULTIPLE FLOWS FAIRNESS IN MOBILE AD-HOC NETWORKS

Abstract

Wireless networks have become increasingly popular in recent years. They can provide mobile users with ubiquitous communication capability and information access regardless of locations. In this paper, we evaluate the heterogeneous environments of wireless mo- bile ad-hoc networks (MANETs) by simulations considering simulation runtime, memory usage, (average) throughput, percentage of received constant bit rate packets and conges- tion window. For simulations, we used ns-2 and ns-3 network simulators considering Ad hoc On-demand Distance Vector (AODV) and Optimized Link State Routing (OLSR) routing protocols. We evaluate the MANET performance considering random waypoint mobility models for different number of nodes, different area sizes and different maximum speed of mobility, by sending single and multiple flows in the network. The evaluation results show that OLSR had more disconnections than AODV and for large-size area, there is no fairness between flows. We found that TCP flow can have better connectivity than UDP flow in case of single flow data. While for dual flow, TCP performance is better in the beginning phases of transmission, because of the slow start mechanism.