Implementation of energy-efficient cooperative communication for multi-hop WSN

Wireless sensor network is a diverse network. One of the important limitation of the wireless sensor network is limited life-time, wireless nodes typically operates with small batteries for which replacement, when possible, is very difficult and expensive. Therefore nodes must operate without battery replacement for long time. Consequently, minimizing the energy consumption is a very important design consideration and energy-efficient transmission schemes must be used for the data transfer in wireless sensor networks. This paper, proposes the energy efficient transmission scheme to minimize the per node energy consumption. In the proposed scheme after the cluster formation in the network potential cluster head will select the cooperative node to transfer data from one cluster to other. The results shows that by transmitting and/or receiving information jointly, tremendous energy saving is possible for larger transmission distances, even after considering the local energy cost necessary for joint information transmission and reception.