A new energy efficient cooperative multicast transmission scheme in clustered WSNs

Wireless sensor networks are formed by connected sensor nodes that each have the ability to collect, process, and store environmental information as well as communicate with other nodes via inter-node wireless communication. These characteristics allow wireless sensor networks to be used in a wide range of applications. Cluster-based protocols attempt to solve this problem by load balancing within the cluster and rotating the job of cluster head every few rounds in wireless sensor networks. In this paper, we derive the formulation of the power consumption for opportunistic network-coded cooperative multicast schemes. Simulation results show that our approach can remarkably improve the performance of outage probability than direct multicast.