Lightweight Clustering Scheme for Disaster Relief Wireless Sensor Networks

摘要

Most wireless sensor networks are driven with a battery. Lifetime maximization is thus very important when designing such networks. Clustering a network is an effective topology control scheme to enhance energy efficiency and scalability of large-scale wireless sensor networks. However, when using a wireless sensor network after a disaster, if sensor nodes cannot join any clusters, the detection area of the wireless sensor network is narrowed. Maximizing lifetime and minimizing the number of sensor nodes, that cannot join clusters is very important. In this work, we propose a lightweight clustering scheme for wireless sensor networks used in disaster relief. Simulation results show that the proposed clustering scheme is efficient and effective for maximizing the lifetime of a network and the number of communicable sensor nodes compared with other traditional clustering schemes.