Abstract
Sensor networks are increasingly being deployed for finer grained monitoring of physical environments subjected to critical conditions such as fire, leaking of toxic gases and explosions. A great challenge to these networks is to provide a continuous delivery of events even in the presence of emergency conditions that can lead to node failures and path disruption to the sink that receives those events. A sensor network to cope with such situations has to be fast and reliable enough to respond to adversities. This paper presents a fault tolerant and low latency algorithm that meets sensors network requirements for critical conditions surveillance applications. The algorithm uses the publish/subscribe mechanism and the concept of driven delivery of events, a technique that selects the fastest path for the notification of events, reducing latency. Fault-tolerance is achieved through fast reconfiguration of the network, which switches from a shortest path mode to a multi-path reliable event notification mode.
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© 2004 Springer-Verlag Berlin Heidelberg
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Boukerche, A., Pazzi, R.W.N., Araujo, R.B. (2004). A Novel Fault Tolerant and Energy-Aware Based Algorithm for Wireless Sensor Networks. In: Nikoletseas, S.E., Rolim, J.D.P. (eds) Algorithmic Aspects of Wireless Sensor Networks. ALGOSENSORS 2004. Lecture Notes in Computer Science, vol 3121. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-27820-7_13
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DOI: https://doi.org/10.1007/978-3-540-27820-7_13
Publisher Name: Springer, Berlin, Heidelberg
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