Improving wireless sensor network lifetime through power aware clustering technique

Wireless sensor networks have increased its application in industrial field as well as in scientific research very rapidly. Sensor nodes normally sense the physical events from the environment such as temperature, sound, pressure, vibration etc. In this paper we have implemented a cluster based routing protocol for reducing the consumption of energy by each sensor node. Here we have used a set of cluster head nodes within a cluster called “cluster head set”, instead of only one cluster head like other routing algorithms. Our proposed method states that within the set one node act as cluster head once at a time in rotation basis and aggregate the data from other nodes and send it to the base station. In comparison with LEACH or other cluster based routing protocols where only one Cluster head is used within a cluster it is shown that our proposed algorithm is more energy efficient.