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2009
Springer

DHV: A Code Consistency Maintenance Protocol for Multi-hop Wireless Sensor Networks

9 years 6 months ago
DHV: A Code Consistency Maintenance Protocol for Multi-hop Wireless Sensor Networks
Ensuring that every sensor node has the same code version is challenging in dynamic, unreliable multi-hop sensor networks. When nodes have different code versions, the network may not behave as intended, wasting time and energy. We propose and evaluate DHV, an efficient code consistency maintenance protocol to ensure that every node in a network will eventually have the same code. DHV is based on the simple observation that if two code versions are different, their corresponding version numbers often differ in only a few least significant bits of their binary representation. DHV allows nodes to carefully select and transmit only necessary bit level information to detect a newer code version in the network. DHV can detect and identify version differences in O(1) messages and latency compared to the logarithmic scale of current protocols. Simulations and experiments on a real MicaZ testbed show that DHV reduces the number of messages by 50%, converges in half the time, and reduces ...
Thanh Dang, Nirupama Bulusu, Wu-chi Feng, Seungweo
Added 19 May 2010
Updated 19 May 2010
Type Conference
Year 2009
Where EWSN
Authors Thanh Dang, Nirupama Bulusu, Wu-chi Feng, Seungweon Park
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