Abstract
Wireless Sensor Networks consist of small wireless nodes which are capable of sensing, computation, and wireless communication capabilities. The main constraint associated with wireless sensor network design is that sensor nodes operate with limited energy budget. The efficient utilization of energy source in a sensor node is very important criteria to elongate the life-time of WSN. Wireless sensor networks have explored to many protocols specifically designed for sensor networks where energy consideration is very crucial. There are several energy efficient reactive routing protocols among this, AODV is a protocol. This thesis is intended to introduce energy-efficient routing protocol, known as MAODV, which is extended version of AODV to enhance energy-efficiency, lifetime in WSN. We have simulated AODV and MAODV in Network simulator-2 (NS2) and analyzed performance in terms of residual energy, throughput and network life time.