Energy-Balanced Clustering Algorithm for Software-Defined Wireless Sensor Networks

The energy supply of sensor nodes is limited, and the sensor nodes near the sink node usually die out earlier than other nodes which causes the imbalance of energy consumption in wireless sensor network (WSN). In order to extend the network lifetime and balance the energy consumption, we present a new clustering algorithm called Energy-balanced Clustering Algorithm (EBCA) based on software-defined wireless sensor network (SDWSN). In our algorithm, the controller redefines the communication radius of each sensor node based on distance from sink node and the number of neighbor nodes, and gives a new clustering method based on the residual energy of itself and its neighbor node. The simulation results show that our algorithm has better performance on balancing energy consumption and extending network lifetime compared with the typical data transmission algorithm.