Energy Efficiency in Wireless Sensor Networks Using Mobile Base Station
Dorottya Vass, Zoltán Vincze, Rolland Vida, Attila Vidács · Kluwer Academic Publishers eBooks · 2006
A sensor network consists of a large number of small, low-cost devices with sensing, processing and transmitting capabilities. The sensor nodes have limited battery power; therefore energy efficiency is a critical design issue. In this paper we propose to move the sink node, called Base Station (BS) so as to decrease the energy consumption of the whole network. We present two possible strategies to move the BS: the first one minimizes the average consumed energy, while the other one minimizes the maximum transmission energy for every active sensor. To evaluate the performance of the two strategies, we compare these with the case, when the BS is deployed in a fixed position. Simulation results show that the proposed processes can reduce energy consumption, thereby significantly extending the lifetime of the entire sensor network.