Power Aware Ad Hoc On-demand Distance Vector (PAAODV) Routing for MANETS

Abstract

Efficient implementation of Mobile Ad Hoc Networks (MANETs) needs a set of application specific Quality of Service (QoS) parameters such as bandwidth, delay and power etc. be guaranteed on a regular basis for the entire life time of operation of the ad hoc network. To achieve this, required measures should be taken at the level of the corresponding ad hoc routing protocol. Most of the routing protocols, especially on-demand routing protocols like Dynamic Source Routing (DSR), Ad hoc Ondemand Distance Vector (AODV), mostly concentrate on determining a route with minimum number of hops, where the issues like delay and power management remain unresolved. In this paper, we suggest Power Aware AODV (PAAODV) protocol for ad hoc networks, which is an enhancement of existing AODV ad hoc routing protocol. The principal goal behind devising PAAODV is to optimally reduce power consumption to a possible minimum level in an ad hoc network with the connectivity of the network not being disrupted. As a consequence of it, the overall power consumed in transmission of overhead packets is significantly reduced. On the other hand, more power can be utilized for transmission of the data packets. In this research work, existing on-demand routing protocol, namely AODV, is enhanced to PAAODV and its performance is verified through simulations using network simulator NS-2. Simulation results justify that power consumed in transmission of data packets using PAAODV is reduced by 25% as compared to that in AODV, and the performance of the ad hoc network is improved as a whole.