Energy Efficiency Scheme for Wireless Sensor Network with Rendezvous Nodes and Mobile Sink

Abstract

Prolonging a network lifetime in Wireless Sensor Network (WSN) is always a tedious task. All sensor nodes (SN) are covered in isolated area to monitor environmental parameters and Mobile Nodes are used to collect data from isolated areas and transmit data to destination location. Some issues are raised in WSN, while monitoring environmental parameters continuously sensor nodes are exhausted and running out of energy. For example, Cluster Head (CH) transmits data to Mobile Sink (MS) with available residual energy. This residual energy is not sufficient to transmit data to MS and CH is overloaded with other nodes information in cluster. For addressing this issue many methodologies are proposed and addressed in their extent However, all these methodologies are experienced ill effect. In this we proposed a scheme to address this issue with Rendezvous Nodes (RN) with efficient clustering algorithm to transmit data to MS. MS are mounted upon vehicles with fixed trajectory path and SN are sent to active or passive modes based on residual energy in each sensor node in the cluster. Only active nodes are operated, and remaining nodes are in passive state to save their residual energy. In this approach we can prolong network life and reduce risk of energy exhausted SN in WSN. Simulation predicts effective result compared to other approaches.