Energy efficient round rotation method for a random cluster based WSN

The energy consumed in cluster head (CH) selection phase of a random cluster based wireless sensor network (WSN) has been assumed as an insignificant factor in the previous research works. In this paper, the consumption of energy during the transmission of data from sensor nodes to the sink has been calculated. Through extensive simulations it has been shown that 20% of the network's total consumed energy is exhausted in the random CH selection phase only. This energy consumption can be taken as an overhead energy. To overcome the overhead energy, an energy efficient “Round Rotation” (RR) mechanism has been proposed. By implementing the RR mechanism with random CH selection phase, the over head energy has been reduced to 4% of the total network energy consumed in data transmissions. This has consequently affected the network lifetime which has been augmented by 20%. Keywords-WSN; CH selection phase; overhead energy; efficient energy; Round Rotation method.