Brown, Stephen and Sreenan, Cormac J.
Software Update Recovery
for Wireless Sensor Networks.
Proceedings of International Conference on Sensor Networks Applications, Experimentation and Logistics (SENSAPPEAL) ICST (2009) .
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.
||Software Update Recovery; Wireless Sensor Networks;
||Science & Engineering > Computer Science
||27 Jan 2012 10:28
|Journal or Publication Title:
||Proceedings of International Conference on Sensor Networks Applications, Experimentation and Logistics (SENSAPPEAL) ICST (2009)
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