Energy Balance Hierarchical Data Aggregation Mechanism for Wireless Sensor Network

To balance energy consumption for nodes in wireless sensor network (WSN) is an important considering factor. A simple model is set up to analytically evaluate the energy consumption in WSN by using aggregation mechanism. It is show that energy consumption of an aggregation node increases so rapidly in the neighborhood of the sink node. A modified hierarchical data aggregation strategy is proposed in order to achieve balanced energy depletion by reducing the cluster head selection probability near the sink. Simulation results show that, this method can reduce the energy consumption efficiently and prolong the lifetime of the whole networks.