Distributed Spectrum Sensing for Cognitive Radio Networks by Exploiting Sparsity

A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral density (PSD) map in space and frequency. Joint estimation of the model parameters enables identification of the (un)used frequency bands at arbit...

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Bibliographic Details
Published in:	IEEE transactions on signal processing Vol. 58; no. 3; pp. 1847 - 1862
Main Authors:	Bazerque, J.A., Giannakis, G.B.
Format:	Journal Article
Language:	English
Published:	New York, NY IEEE 01-03-2010 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Adaptive systems Algorithms Applied sciences Chromium Cognitive radio Cognitive radios Collaboration compressive sampling Computer simulation cooperative systems Density Detection Detection, estimation, filtering, equalization, prediction distributed estimation Exact sciences and technology Frequency estimation Government Information, signal and communications theory Interference Mathematical models Miscellaneous Narrowband Networks parallel network processing Radio Radio networks Radiofrequency identification Sampling methods Sampling, quantization sensing Signal and communications theory Signal processing Signal representation. Spectral analysis Signal, noise sparse models Sparsity spectral analysis Studies Telecommunications and information theory Wireless sensor networks Parameter estimation parallel network processing Wireless telecommunication Iterative method spectral analysis Implementation Cognitive radios Model matching Frequency band Least squares method Frequency spectrum System identification cooperative systems Sampling Localization distributed estimation sensing compressive sampling Power spectral density On-line systems Regression analysis Narrow band Frequency reuse Joint detection Spatial frequency Simulation Signal processing Signal analysis sparse models Radio communication Software radio
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