Censoring sensors: a low-communication-rate scheme for distributed detection
| Autor: | C. Rago, Peter Willett, Yaakov Bar-Shalom |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
business.industry
Aerospace Engineering Machine learning computer.software_genre Sensor fusion Data acquisition Sensor array Conditional independence If and only if Censoring (clinical trials) Detection theory Artificial intelligence Electrical and Electronic Engineering business Algorithm computer Fusion center Mathematics |
| Zdroj: | IEEE Transactions on Aerospace and Electronic Systems. 32:554-568 |
| ISSN: | 0018-9251 |
| DOI: | 10.1109/7.489500 |
| Popis: | We consider a new scheme for distributed detection based on a "censoring" or "send/no-send" idea. The sensors are assumed to "censor" their observations so that each sensor sends to the fusion center only "informative" observations, and leaves those deemed "uninformative" untransmitted. The main result of this work is that with conditionally independent sensor data and under a communication rate constraint, in order to minimize the probability of error, transmission should occur if and only if the local likelihood ratio value observed by the sensor does not fall in a certain single interval. Similar results are derived from Neymarr-Pearson and distance-measure viewpoints. We also discuss simplifications for the most interesting case that the fusion center threshold is high and the communication constraint is severe. We compare censoring with the more common binary-transmission framework and observe its considerable decrease in communication needs. Finally, we explore the use of feedback to achieve optimal performance with very little communication. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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