Spatial-spectral joint detection for wideband spectrum sensing in cognitive radio networks

Zhi Quan, Shuguang Cui, Ali H. Sayed, H. Vincent Poor

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

32 Scopus citations

Abstract

Spectrum sensing is an essential functionality that enables cognitive radios to detect spectral holes and opportunistically use under-utilized frequency bands without causing harmful interference to primary networks. Since individual cognitive radios might not be able to reliably detect weak primary signals due to channel fading/shadowing, this paper proposes a cooperative wideband spectrum sensing scheme, referred to as spatial-spectral joint detection, which is based on a linear combination of the local statistics from spatially distributed multiple cognitive radios. The cooperative sensing problem is formulated into an optimization problem, for which suboptimal but efficient solutions can be obtained through mathematical transformation under practical conditions.

Original languageEnglish (US)
Title of host publication2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Pages2793-2796
Number of pages4
DOIs
StatePublished - Sep 16 2008
Event2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States
Duration: Mar 31 2008Apr 4 2008

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Other

Other2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
CountryUnited States
CityLas Vegas, NV
Period3/31/084/4/08

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

Keywords

  • And cognitive radio
  • Distributed detection
  • Nonlinear optimization
  • Spectrum sensing

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    Quan, Z., Cui, S., Sayed, A. H., & Poor, H. V. (2008). Spatial-spectral joint detection for wideband spectrum sensing in cognitive radio networks. In 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP (pp. 2793-2796). [4518229] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). https://doi.org/10.1109/ICASSP.2008.4518229