Energy Efficiency and target coverage strategies in WSN

Abstract

Clustering  is  one  of  the most  efficient  techniques  for  saving  energy  of  wireless sensor   networks   (WSNs).   However,   in   a   hierarchical cluster  based  WSN,  cluster  heads  (CHs)  consume  more energy due to extra overload for receiving and aggregating the data from their member sensor nodes and transmitting the  aggregated  data  to  the  base  station.  Proper  selection  of  CHs  plays  major  role  to  conserve  the energy  of  sensor  nodes  to increase the  lifetime  of WSNs. Coverage and connectivity must also be addressed to fulfil reliability and real- time  requirements. In this paper, we propose an energy efficient cluster head selection algorithm and also analyze characteristics of energy-efficient coverage strategies. In the proposed approach, we consider various parameters such as sink distance and intra-cluster distance of sensor nodes for energy-efficiency. The results are compared with some existing algorithms to demonstrate the superiority of the proposed algorithm.