An Novel Energy-Efficient Redundant Routing Tree Algorithm for Wireless Sensor Networks

Nodes in wireless sensor networks(WSNs) are tiny and energy-limited,so in order to enhance the entire network lifetime, this paper puts forward a novel energy efficient redundant routing tree(EE-RRT) algorithm for wireless sensir networks. EE-RRT has three obvious features: Firstly, it improves virtual grid ideas to divide each cluster into MtimesN square area and select a working node in each grid to reduce redundant information and economize energy. Secondly, EE-RRT improves energy utility by changing the activity of wireless communication module of sensor nodes, energy model and state transition of sensor nodcs.hist.it builds a redundant routing tree as the transmission agents to realize the information exchange between the clusters and base-station so that the energy consumption of normal nodes and clusters´ heads can be decreased and reduces the dynamic clustering time to save energy. Simulation results show that, compared with LEACH and RNTA,EE-RRT significantly reduce in energy consumption and prolong the network lifetime.