Energy-Efficient Transmission Technique based on Dijkstra Algorithm for decreasing energy consumption in WSNs

Abstract

In this paper, we propose an energy-efficient multihop transmission technique for Wireless Sensor Networks (WSN) based on Dijkstra algorithm. We consider a WSN composed of N sensor nodes. Firstly, we group the sensor nodes into clusters according to their placement in the monitoring area, then we organize the nodes within each cluster by electing the appropriate node as cluster head and classifying the remaining nodes into active nodes and sleeping nodes. Then, we select the set of reliable relays which cooperate to forward data with the least transmit power. Our proposed relay selection algorithm is based on Dijkstra algorithm. The main contribution of the paper is to define a new transmission strategy that improves the results of our previous work proposed in [?] by better minimizing power consumption. Therefore, the proposed transmission technique can improve significantly the reduction of power consumption compared to the previous transmission technique. Simulations results prove that the new transmission technique based on Dijkstra algorithm increases the energy savings to prolong the network lifetime.