Decentralized detection in wireless sensor networks with channel fading statistics
EURASIP Journal on Wireless Communications and Networking
Discrete stochastic approximation algorithms for design of optimal sensor fusion rules
International Journal of Sensor Networks
Decentralised binary detection with non-constant SNR profile at the sensors
International Journal of Sensor Networks
Channel aware target localization with quantized data in wireless sensor networks
IEEE Transactions on Signal Processing
Tracking in wireless sensor networks using particle filtering: physical layer considerations
IEEE Transactions on Signal Processing
Detection outage and detection diversity in a homogeneous distributed sensor network
IEEE Transactions on Signal Processing
IEEE Transactions on Information Theory
Detection using intermittent observations for passive wireless sensors
ACC'09 Proceedings of the 2009 conference on American Control Conference
Effect of quantization and channel errors on collaborative spectrum sensing
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Power control strategy for distributed multiple-hypothesis detection
IEEE Transactions on Signal Processing
Optimal linear fusion for distributed detection via semidefinite programming
IEEE Transactions on Signal Processing
The decision fusion in the wireless network with possible transmission errors
Information Sciences: an International Journal
Hi-index | 754.91 |
Distributed detection has been intensively studied in the past. In this correspondence, we consider the design of local decision rules in the presence of nonideal transmission channels between the sensors and the fusion center. Under the conditional independence assumption among multiple sensor observations, we show that the optimal local decisions that minimize the error probability at the fusion center amount to a likelihood-ratio test (LRT) given a particular constraint on the fusion rule. This constraint turns out to be quite general and is easily satisfied for most sensible fusion rules. A design example using a parallel sensor fusion structure with binary-symmetric channels (BSCs) between local sensors and the fusion center is given to illustrate the usefulness of the result in obtaining optimal thresholds for local sensor observations. The study that incorporates the transmission channel in the sensor system design may have potential applications in the emerging field of wireless sensor networks.