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A sequential problem in decentralized detection with communication
By: Nayyar, A.; Teneketzis, D.;
2009 / IEEE / 978-1-4244-4919-4
Description
This item was taken from the IEEE Conference ' A sequential problem in decentralized detection with communication ' We consider a sequential problem in decentralized detection. Two observers can make repeated noisy observations of a binary hypothesis on the state of the environment. At any time, observer 1 can stop and send a final message to observer 2 or it may continue to take more measurements. Every time observer 1 postpones its final message to observer 2, it incurs a penalty. We consider observer 2's operation under two different scenarios. In the first scenario, observer 2 waits to receive the final message from observer 1 and then starts taking measurements of its own. It is then faced with a stopping problem on whether to stop and declare a decision on the hypothesis or to continue taking measurements. In the second scenario, observer 2 starts taking measurements from the beginning. It is then faced with a different stopping problem. At any time, observer 2 can decide whether to stop and declare a decision on the hypothesis or to continue to take more measurements and wait for observer 1 to send its final message. We obtain parametric characterization of optimal policies for the two observers under both scenarios. We then extend these characterizations to a problem with multiple peripheral sensors that each send a single final message to a coordinating sensor who makes the final decision on the hypothesis.
Related Topics
Distributed Sensors
Multiple Peripheral Sensors
Sequential Problem
Decentralized Detection
Sensor Phenomena And Characterization
Time Measurement
Surveillance
Working Environment Noise
Large-scale Systems
Sensor Systems And Applications
Memory
Data Processing
Random Variables
Data Communication
Signal Detection
Engineering
Sensor Fusion