Performance Analysis of Energy Aware AODV Routing Protocol for IEEE 802. 15. 4 Enabled WSN

Abstract

In the present scenario, wireless network is being widely used in the area where infrastructure based telecommunication system are unavailable. The mobile adhoc network is the infrastructure-less mobile network which has no fixed infrastructure and the nodes can be connected dynamically in an arbitrary manner. The sensor networks are incarnated from ad-hoc networks in which nodes have sensing capability. There are several communication protocols available for wireless sensor networks such as Ad hoc On demand Distance Vector (AODV), Dynamic Source Routing (DSR), Dynamic Destination Sequenced Distance Vector (DSDV). AODV is an on demand dynamic routing protocol that uses sequence number to determine the timeliness of each packet and to prevent loops. The main advantage of this protocol is to establish routes on demand and destination sequence numbers are available for finding the latest route to the destination. However, nodes in sensor networks are usually powered by batteries, which provide a limited amount of energy since sensor nodes have limited battery power. Hence it is required to develop energy efficient routing protocols to optimize the performance of the network. In this paper, Energy Aware AODV (EAODV) routing protocol for IEEE 802.15.4 enabled WSN is developed to improve the performance of the network. The energy aware AODV protocol for IEEE 802.15.4 enabled WSN is done by incorporating the residual energy in the RREQ message of the existing AODV protocol. Further, the performance metrics such as delivery ratio and delay are determined and analyzed for various simulation times and coverage area.