Segregated receive and relay scheme for communication in wireless sensor networks

A Wireless Sensor Network (WSN) is a set of self-powered sensor nodes. These nodes are deployed in infrastructure less mode to collect the useful information from the environment and transmit it to the sink node. The significance of Wireless Sensor Networks has been evidenced in many applications like military areas, health monitoring and observation of earthquake etc. However, WSN has also some limitations including limited energy supply that leads to shorter life time of the network. Although numerous techniques have been proposed to improve the life time of sensor nodes, yet the large energy requirements for communication activities is still a serious issue. In this work, Segregated Receive and Relay (SRR) based routing scheme has been proposed to increase the lifetime of WSN. To achieve the purpose, relay nodes have been introduced in interior regions of the network area. The results confirm that proposed scheme significantly reduce the energy consumed by interior region nodes, which proves the usefulness of the proposed scheme in prolonging WSN lifetime.