Exploiting data fusion to improve the coverage of wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
Fusion-based volcanic earthquake detection and timing in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
Randomized information dissemination in dynamic environments
IEEE/ACM Transactions on Networking (TON)
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We consider the problem of decentralized detection in failure-prone tree networks with bounded height. Specifically, we study and contrast the impact on the detection performance of either node failures (modeled by a Galton-Watson branching process) or unreliable communications (modeled by binary symmetric channels). In both cases, we focus on ldquodenserdquo networks, in which we let the degree of every node (other than the leaves) become large, and we characterize the asymptotically optimal detection performance. We develop simple strategies that nearly achieve the optimal performance, and compare the performance of the two types of networks.