Distributed Detection of Generalized Gaussian Sparse Signals with One-Bit Measurements (Poster)

Xueqian Wang, Gang Li, Chen Quan, Pramod K. Varshney

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, distributed detection of sparse stochastic signals with one-bit measurements is studied. We assume that both the noise and the dominant elements in sparse signals follow the generalized Gaussian (GG) distribution. Due to constrained bandwidth/energy in sensor networks, the local sensors send binary measurements instead of analog data to the fusion center. First, we propose the locally most powerful test (LMPT) detector based on one-bit measurements for distributed detection of sparse signals. Then, we analytically derive near-optimal one-bit quantizers at the local sensor nodes using the log-concave approximation of the efficacy. Simulation results corroborate our theoretical analysis and show that, the proposed one-bit LMPT detector with analytically obtained one-bit quantizers provides detection performance which is comparable to that with numerically obtained optimal quantizers in the GG case.

Original languageEnglish (US)
Title of host publicationFUSION 2019 - 22nd International Conference on Information Fusion
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780996452786
StatePublished - Jul 2019
Event22nd International Conference on Information Fusion, FUSION 2019 - Ottawa, Canada
Duration: Jul 2 2019Jul 5 2019

Publication series

NameFUSION 2019 - 22nd International Conference on Information Fusion

Conference

Conference22nd International Conference on Information Fusion, FUSION 2019
CountryCanada
CityOttawa
Period7/2/197/5/19

Keywords

  • Distributed detection
  • Generalized Gaussian distribution
  • Locally most powerful tests
  • One-bit Quantizers
  • Sensor networks
  • Sparse signals

ASJC Scopus subject areas

  • Information Systems
  • Instrumentation

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  • Cite this

    Wang, X., Li, G., Quan, C., & Varshney, P. K. (2019). Distributed Detection of Generalized Gaussian Sparse Signals with One-Bit Measurements (Poster). In FUSION 2019 - 22nd International Conference on Information Fusion [9011411] (FUSION 2019 - 22nd International Conference on Information Fusion). Institute of Electrical and Electronics Engineers Inc..