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Eigenvalue-Based Spectrum Sensing of Orthogonal Space-Time Block Coded Signals
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-7599-4367
2012 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 60, no 12, 6724-6728 p.Article in journal (Refereed) Published
Abstract [en]

We consider spectrum sensing of signals encoded with an orthogonal space-time block code (OSTBC). We propose a CFAR detector based on knowledge of the eigenvalue multiplicities of the covariance matrix which are inherent owing to the OSTBC and derive theoretical performance bounds. In addition, we show that the proposed detector is robust to a carrier frequency offset, and propose a detector that deals with timing synchronization using the detector for the synchronized case as a building block. The proposed detectors are shown numerically to perform well.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2012. Vol. 60, no 12, 6724-6728 p.
Keyword [en]
Cognitive radio; signal detection
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-87206DOI: 10.1109/TSP.2012.2218813ISI: 000311805000052OAI: oai:DiVA.org:liu-87206DiVA: diva2:587455
Available from: 2013-01-14 Created: 2013-01-14 Last updated: 2017-12-06

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Axell, ErikLarsson, Erik G.

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