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Adaptive Storage Policy Switching for Wireless Sensor Networks

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Abstract

In wireless sensor networks, storage policies can be categorized into external storage, local storage and data centric storage. Each storage police has its suitable network environments. If a correct storage policy is chosen for a given network condition, unnecessary control messages can be significantly reduced. Then the network lifetime can be increased. In this paper, adaptive data storage (ADS) policy which can dynamically choose suitable storage policy for wireless sensor network according to the frequencies of user queries and events happening is proposed. Through collection and computation of user query and event rates, the proposed algorithm switches between local storage and data centric storage policies adaptively. Simulations are given to justify that the proposed adaptive storage policy indeed reduces the traffic in network and increases network lifetime.

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  1. Department of Computer and Information Science, Aletheia University, Taipei, Taiwan, ROC

    Gwo-Jong Yu

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  1. Gwo-Jong Yu
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Correspondence to Gwo-Jong Yu.

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Yu, GJ. Adaptive Storage Policy Switching for Wireless Sensor Networks. Wireless Pers Commun 48, 327–346 (2009). https://doi.org/10.1007/s11277-008-9525-y

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  • DOI: https://doi.org/10.1007/s11277-008-9525-y

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