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http://dx.doi.org/10.7840/kics.2014.39B.11.779

CR Technology and Activation Plan for White Space Utilization  

Yoo, Sung-Jin (Electronics and Telecommunications Research Institute)
Kang, Kyu-Min (Electronics and Telecommunications Research Institute)
Jung, Hoiyoon (Electronics and Telecommunications Research Institute)
Park, SeungKeun (Electronics and Telecommunications Research Institute)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.39B, no.11, 2014 , pp. 779-789 More about this Journal
Abstract
Cognitive radio (CR) technology based on geo-location database access approach and/or wideband spectrum sensing approach is absolutely vital in order to recognize available frequency bands in white spaces (WSs), and efficiently utilize shared spectrums. This paper presents a new structure for the TVWS database access protocol implementation based on Internet Engineering Task Force (IETF) Protocol to Access WS database (PAWS). A wideband compressive spectrum sensing (WCSS) scheme using a modulated wideband converter is also proposed for the TVWS utilization. The developed database access protocol technology which is adopted in both the TV band device (TVBD) and the TVWS database operates well in the TV frequency bands. The proposed WCSS shows a stable performance in false alarm probability irrespective of noise variance estimation error as well as provides signal detection probabilities greater than 95%. This paper also investigates Federal Communications Commision (FCC) regulatory requirements of TVWS database as well as European Telecommunications Standards Institute (ETSI) policy related to TVWS database. A standardized protocol to achieve interoperability among multiple TVBDs and TVWS databases, which is currently prepared in the IETF, is discussed.
Keywords
CR; TVWS; geo-location database; wideband compressive spectrum sensing; database regulations;
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Times Cited By KSCI : 5  (Citation Analysis)
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