Brown, Stephen and Sreenan, Cormac J. (2009) Software Update Recovery for Wireless Sensor Networks. Proceedings of International Conference on Sensor Networks Applications, Experimentation and Logistics (SENSAPPEAL) ICST (2009) .

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Abstract

Updating software over the network is important for Wireless Sensor Networks in support of scale, remote deployment, feature upgrades, and fixes. The risk of a fault in the updated code causing system failure is a serious problem. In this paper, we identify a single, critical, symptom loss-of-control, that complements exception-based schemes, and supports failsafe recovery from faults in software updates. We present a new software update recovery mechanism that uses loss-ofcontrol to provide high-reliability, low energy, software updates, including a comparison of optimised-flooding against spanning-tree for determining loss-of-control in a multi-path environment. The solution presented supports a trial phase (with lower latency), and an operational phase (with lower energy). The energy/latency tradeoff of this is shown, and the high-reliability of this update recovery is demonstrated by analysis and simulation. The results presented control the risk in existing WSN software update mechanisms.

Item Type:	Article
Keywords:	Software Update Recovery; Wireless Sensor Networks;
Academic Unit:	Faculty of Science and Engineering > Computer Science
Item ID:	3032
Depositing User:	Stephen Brown
Date Deposited:	27 Jan 2012 10:28
Journal or Publication Title:	Proceedings of International Conference on Sensor Networks Applications, Experimentation and Logistics (SENSAPPEAL) ICST (2009)
Publisher:	SENSAPPEAL
Refereed:	Yes
URI:
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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