Adaptive sink mobility in event-driven multi-hop wireless sensor networks

Zoltán Vincze, Dorottya Vass, Rolland Vida, Attila Vidács, András Telcs
2006 Proceedings of the first international conference on Integrated internet ad hoc and sensor networks - InterSense '06  
Optimizing energy consumption in wireless sensor networks is of paramount importance. There is a recent trend to deal with this problem by introducing mobile elements (sensors or sink nodes) in the network. The majority of these approaches assume time-driven scenarios and/or singlehop communication between participating nodes. However, there are several real-life applications for which an event-based and multi-hop operation is more appropriate. In this paper we propose to adaptively move the
more » ... k node inside the covered region, according to the evolution of current events, so as to minimize the energy consumption incurred by the multihop transmission of the event-related data. Both analytical and simulation results are given for two optimization strategies: minimizing the overall energy consumption, and minimizing the maximum load on a specific sensor respectively. We show that by adaptively moving the sink, significant power saving can be achieved, prolonging the lifetime of the network.
doi:10.1145/1142680.1142697 dblp:conf/intersense/VinczeVVVT06 fatcat:ralrojresjc73at7qwyquxrwxq