TitleImproving Area Coverage of Wireless Sensor Networks Via Controllable Mobile Nodes: a Greedy Approach
Publication TypeJournal Article
Year of Publication2015
AuthorsVecchio, M, López-Valcarce, R
JournalJournal of Network and Computer Applications
Date Published02/2015
Keywordscompass, wsn
Abstract Reliable wide-area monitoring with Wireless Sensor Networks (WSNs) remains a problem ofinterest: simply deploying more nodes to cover wider areas is generally not a viable solution, due todeployment and maintenance costs and the increase in radio interference. One possible solutiongaining popularity is based on the use of a reduced number of mobile nodes with controllabletrajectories in the monitored field. In this framework, we present a distributed technique for iterativelycomputing the trajectories of the mobile nodes in a greedy fashion. The static sensor nodes activelyassist the mobile nodes in this task by means of a bidding protocol, thus participating towards the goalof maximizing the area coverage of the monitored field. The performance of the proposed technique isevaluated on various simulation scenarios with different number of mobile and static nodes in terms ofachieved coverage and mean time to achieve X% coverage. Comparison with previous state-of-the-arttechniques reveals the effectiveness and stability of the proposed method.