Dynamic-power AODV routing protocol based on node density

Mobile Ad Hoc Networks (MANET) allows versatile communication between hosts that are moving around. However, these networks have no fixed infrastructure thus making the routing of packets a continuous challenge. Consequently, when the number of nodes within an area increases the scope for interference between nodes also increases significantly. Additionally, MANETs have low stability in areas with fast moving nodes which leads to their reduced longevity. In this paper, we propose a method to improve the Dynamic Power-Ad hoc On-Demand Distance Vector (DP-AODV) to dynamically adjust transmission power. Our method uses the dependence of transmission range on density to achieve this improvement. We demonstrate that as density increases, DP-AODV shows less increase in delay than AODV and results in better performance for highly populated networks e.g. 200 nodes. Simulation results show that DP-AODV increase network throughput, and it reduces node interference in dense region.