Distributed Detection with Common Observations

Hao Chen, Tsang-Yi Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Distributed detection with dependent observations is always a challenging problem. In this paper, we consider a special dependent case where sensors share some common information. Specifically, we investigate a tandem network with sensor 1 sending a one-bit decision to sensor 2 where the final decision is made. Along with their common observation X 2 , sensors 1 and 2 possess their conditionally independent measurements X 1 and X 3 , respectively. After obtaining the relationship between the optimal sensor 1 rule and sensor 2 fusion rule, we derive the necessary condition for the optimal sensor decision rules for both sensors. We compare the optimal rules with two suboptimal rules for distributed detection of a constant DC signal in Gaussian noise with various of signal-to-noise ratios.

Original languageAmerican English
Title of host publicationIEEE International Conference on Acoustics, Speech and Signal Processing
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5313-5317
Number of pages5
ISBN (Electronic)978-1-4799-0356-6
DOIs
StatePublished - 2013

Publication series

NameIEEE International Conference on Acoustics, Speech and Signal Processing
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISSN (Print)1520-6149
ISSN (Electronic)2379-190X

Keywords

  • Common Information
  • Conditionally Dependent Observations
  • Distributed Detection
  • Tandem Network

EGS Disciplines

  • Electrical and Computer Engineering

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