Non-uniform node deployment in wireless sensor networks
YI Ye-qing · Computer Engineering and Applications Journal · 2008
In wireless sensor networks sensor nodes transmit their collect data to designated cluster heads,cluster heads aggregate the data packets and send them via multi-hop communication to the base station.Nodes closer to the base station tend to die earlier because more data packets are needed to transmit,which is so-called energy holes problem.To address the problem,we propose a non-uniform deployment algorithm through investigating energy consumption in wireless sensor network.The algorithm presents a density function to deploy sensor nodes and enables that area closer to the base station has more nodes.Simulation results show that our proposed algorithm is effective for prolonging the network lifetime.