Papers Published

1. Zou, Y; Chakrabarty, K, Fault-tolerant self-organization in sensor networks, Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 3560 (January, 2005), pp. 191-205 [doi] .
   (last updated on 2022/12/30)

   Abstract:
   Sensor nodes in a distributed sensor network can fail due to a variety of reasons, e.g., harsh weather conditions, sabotage, battery failure, and component wear-out. Since many wireless sensor networks are intended to operate in an unattended manner after deployment, failing nodes cannot be replaced or repaired during field operation. Therefore, by designing the network to be fault-tolerant, we can ensure that a wireless sensor network can perform its surveillance and tracking tasks even when some nodes in the network fail. In this paper, we describe a fault-tolerant self-organization scheme that designates a set of backup nodes to replace failed nodes and maintain a backbone for coverage and communication. This scheme has been implemented on top of an energy-efficient self-organization technique for sensor networks. The proposed fault-tolerance-node selection procedure can tolerate a large number of node failures, without losing either sensing coverage or communication connectivity. © Springer-Verlag Berlin Heidelberg 2005.