EXTENDED LIFETIME ROUTING IN WIRELESS SENSOR NETWORK

A Wireless Sensor Network (WSN) consists of some wireless nodes which are known with these characteristics: small size and constrained energy source. Considering the energy constraints of nodes in Wireless Sensor Networks (WSNs), routing by efficient energy is significant, so considerable effort has been taken to design efficient routing protocol in order to prolong the lifetime of WSNs. Clustering is an effective procedure for prolonging the lifetime of the network and timing of nudes activities. One of the parameters determining the speed of operation, emergency response and disaster management, in utilize of Mobile sensor network, extending the lifetime of sensor network and consequently available resource is one of the primary concerns and has an important role in crisis management. In order to conserve energy and prolong network's lifetime this study uses the energy aware algorithm to introduce and implement the proposed algorithm. To achieve this aim, with managing the time of nodes activity and managing the neighbor nodes in the communication path between source and sink, a new clustering method is introduced. The simulation results shows the improvement of network lifetime. Finally, the presented modified flow augmentation algorithm(FAM) and clustering algorithm are simulated by Glomosim software and then the results are evaluated.