Abstract
Wireless sensor network (WSN) is a collection of sensor nodes deployed in the sensing space that coordinate wirelessly to communicate information to base station. In network layer, to ease communication overhead and to determine route from sensor node to base station, sensors can be organized into collection or groups known as clusters. Each cluster is headed by a cluster head. The cluster head is responsible for entire communication that takes place between the cluster and the base station. In a cluster, energy consumption of a cluster head is relatively greater than that of cluster members as they receive data from members as well as sense data, process the data and communicate the result of processing to the base station. This implies for uniform depletion of nodes energy level, design of an efficient cluster head rotation schema is necessary. This works aims at devising an energy efficient cluster head selection and rotation mechanism with an objective to avoid repeated clustering during each round and emphasize on transferring role of being cluster head to the next nearest node from the initial cluster head based on Received Signal Strength Indicator reading.
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