An Energy-Balanced Multicast Routing Algorithm in Wireless Sensor Networks

An energy-balanced multicast routing algorithm EBMR in wireless sensor networks (WSNs) is proposed. The objective of EMBR algorithm is to improve the energy efficiency and extend the network lifetime in multicast. To achieve this goal, the energy consumption model in WSNs is analyzed and an energy-constrained metric for multicast forwarder selecting is studied. Then the framework of EBMR algorithm is discussed. Simulation results show that EBMR algorithm is able to reduce energy consumption of the whole network evenly. Compared with shortest path tree (SPT) multicast routing algorithm, EMBR algorithm will extend the network lifetime.