Divide and conquer is almost optimal for the bounded-hop MST problem on random euclidean instances
SIROCCO'05 Proceedings of the 12th international conference on Structural Information and Communication Complexity
Decentralized detection in sensor networks
IEEE Transactions on Signal Processing
How Dense Should a Sensor Network Be for Detection With Correlated Observations?
IEEE Transactions on Information Theory
Data Fusion Trees for Detection: Does Architecture Matter?
IEEE Transactions on Information Theory
On the Subexponential Decay of Detection Error Probabilities in Long Tandems
IEEE Transactions on Information Theory
Asymptotic results for decentralized detection in power constrained wireless sensor networks
IEEE Journal on Selected Areas in Communications
Randomized information dissemination in dynamic environments
IEEE/ACM Transactions on Networking (TON)
Hi-index | 35.68 |
We study the detection performance of large scale sensor networks, configured as trees with bounded height, in which information is progressively compressed as it moves towards the root of the tree. We show that, under a Bayesian formulation, the error probability decays exponentially fast, and we provide bounds for the error exponent. We then focus on the case where the tree has certain symmetry properties. We derive the form of the optimal exponent within a restricted class of easily implementable strategies, as well as optimal strategies within that class. We also find conditions under which (suitably defined) majority rules are optimal. Finally, we provide evidence that in designing a network it is preferable to keep the branching factor small for nodes other than the neighbors of the leaves.