Next century challenges: scalable coordination in sensor networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
SensorSim: a simulation framework for sensor networks
Proceedings of the 3rd ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems
Distributed Detection and Data Fusion
Distributed Detection and Data Fusion
Detection, Estimation, and Modulation Theory: Radar-Sonar Signal Processing and Gaussian Signals in Noise
Wireless Sensor Networks: An Information Processing Approach
Wireless Sensor Networks: An Information Processing Approach
Distributed detection and fusion in a large wireless sensor network of random size
EURASIP Journal on Wireless Communications and Networking
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
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This paper addresses multisensor collaboration for the detection of weak and noisy signals using a network of wireless sensors. We propose a scheme that is designed to detect spatially correlated signals, which is common in many sensor network applications. The proposed scheme allows sensor nodes to automatically form collaborative teams to combine multisensor information for efficient detection of target signals. It applies a clustering measure for multisensor decision fusion that improves the detection performance over traditional schemes that use a counting rule. Associated communication protocols to perform multisensor collaboration, data aggregation and fusion are presented. These protocols are designed to optimise the communication cost in the network while maintaining low probabilities of error for collaborative detection. Performance evaluations of the proposed schemes, obtained using extensive computer simulations, are presented.