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A Dynamic Size Distributed Program Image Cache for Wireless Sensor Networks

Joshua Ellul (Ed.)

Conference or Workshop Paper
May, 2009

Reprogramming node software over-the-air is an essential requirement in many wireless sensor network applications due to the inaccessibility of the deployed sensor nodes. Transmitting whole software images consumes a high amount of energy in proportion to updates, especially when they are small in size. Incremental updates have addressed this; however introduce the potential of a sensor node becoming out of sync when it misses an update. In this paper we present a dynamic size distributed program image cache that provides increased efficiency in reprogramming out of sync nodes and multi-purpose wireless sensor networks.

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