Sparsity-aware cooperative cognitive radio sensing using channel gain maps

Seung Jun Kim; Emiliano Dall'anese; Georgios B Giannakis

doi:10.1109/ACSSC.2009.5469880

Sparsity-aware cooperative cognitive radio sensing using channel gain maps

Seung Jun Kim, Emiliano Dall'anese, Georgios B Giannakis

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Scopus citations

Abstract

The cooperative cognitive radio (CR) sensing problem is considered, where a number of CRs collaboratively detect the presence of an unknown number of primary users (PUs) in the geographical area where the CR network is operating. A novel concept of channel gain maps is introduced to model and dynamically track the spatio-temporal evolution of the propagation environment. The channel gain map estimates are then exploited to perform dynamic cooperative sensing of timevarying PU activities based on a sparse regression formulation. A distributed algorithm is proposed to reduce the messagepassing overhead of the centralized counterpart for solving the ℓ1- penalized weighted least-squares problem.

Original language	English (US)
Title of host publication	Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers
Pages	518-522
Number of pages	5
DOIs	https://doi.org/10.1109/ACSSC.2009.5469880
State	Published - Dec 1 2009
Event	43rd Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States Duration: Nov 1 2009 → Nov 4 2009

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Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)	1058-6393

Other

Other	43rd Asilomar Conference on Signals, Systems and Computers
Country/Territory	United States
City	Pacific Grove, CA
Period	11/1/09 → 11/4/09

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Sparsity-aware cooperative cognitive radio sensing using channel gain maps. / Kim, Seung Jun; Dall'anese, Emiliano; Giannakis, Georgios B.
Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers. 2009. p. 518-522 5469880 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kim, SJ, Dall'anese, E & Giannakis, GB 2009, Sparsity-aware cooperative cognitive radio sensing using channel gain maps. in Conference Record - 43rd Asilomar Conference on Signals, Systems and Computers., 5469880, Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 518-522, 43rd Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 11/1/09. https://doi.org/10.1109/ACSSC.2009.5469880

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Sparsity-aware cooperative cognitive radio sensing using channel gain maps

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