Overview of Spectrum Sensing for Cognitive Radio
2010 (English)In: Proceedings of the International Workshop on Cognitive Information Processing (CIP), 2010, 322-327 p.Conference paper (Refereed)
We present a survey of state-of-the-art algorithms for spectrum sensing in cognitive radio. The algorithms discussed range from energy detection to sophisticated feature detectors. The feature detectors that we present all have in common that they exploit some known structure of the transmitted signal. In particular we treat detectors that exploit cyclostationarity properties of the signal, and detectors that exploit a known eigenvalue structure of the signal covariance matrix. We also consider cooperative detection. Specifically we present data fusion rules for soft and hard combining, and discuss the energy efficiency of several different sensing, sleeping and censoring schemes in detail.
Place, publisher, year, edition, pages
2010. 322-327 p.
spectrum sensing, cognitive radio, signal detection
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-54529DOI: 10.1109/CIP.2010.5604136OAI: oai:DiVA.org:liu-54529DiVA: diva2:304989
Accepted for publication
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Erik Axell, Geert Leus and Erik G. Larsson, Overview of Spectrum Sensing for Cognitive Radio, 2010, The 2nd International Workshop on Cognitive Information Processing