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An Adaptive Storage System for Enhancing Data Reliability in Solar-powered Sensor Networks  

Noh, Dong-Kun (일리노이대학교 컴퓨터과학과)
Publication Information
Journal of KIISE:Computer Systems and Theory / v.36, no.5, 2009 , pp. 360-370 More about this Journal
Abstract
Using solar power in wireless sensor networks requires a different approach to energy optimization from networks with battery-based nodes. Solar energy is an inexhaustible supply which can potentially allow a system to run forever, but there are several issues to be considered such as the uncertainty of energy supply and the constraint of rechargeable battery capacity. In this paper, we present SolarSS: a reliable storage system for solar-powered sensor networks, which provides a set of functions, in separate layers, such as sensory data collection, replication to prevent failure-induced data loss, and storage balancing to prevent depletion-induced data loss. SolarSS adapts the level of layers activated dynamically depending on solar energy availability, and provides an efficient resource allocation and data distribution scheme to minimize data loss.
Keywords
solar power; sensor network; storage system; data reliability;
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