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AHSWN
2007

On the Lifetime of Large Wireless Sensor Networks with Multiple Battery Levels

10 years 3 months ago
On the Lifetime of Large Wireless Sensor Networks with Multiple Battery Levels
Large wireless sensor networks promise to revolutionize the way we sense and control the physical world. In large networks the nodes within the range of the base station forward data on behalf of the entire network. Under reasonable assumptions, as this burden significantly shortens the lifespan of these nodes, the network may become disconnected (and, hence, unusable) while considerable battery resources remain unused at the peripheral nodes. To alleviate this undesired effect, we investigate the effect of multiple battery levels to maximize the useful lifetime of the network. We demonstrate a powerful, yet attractively simple scheme to redistribute the total energy budget in multiple (but few) battery levels. We show by theoretical analysis, as well as simulation, that this substantially improves the network lifetime.
Mihail L. Sichitiu, Rudra Dutta
Added 08 Dec 2010
Updated 08 Dec 2010
Type Journal
Year 2007
Where AHSWN
Authors Mihail L. Sichitiu, Rudra Dutta
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