NDLI: Exploiting Historical Spectrum Occupancy Information for Adaptive Spectrum Sensing

Content Provider	IEEE Xplore Digital Library
Author	Wellens, M. de Baynast, A. Mahonen, P.
Copyright Year	2008
Description	Author affiliation: RWTH Aachen Univ., Aachen (Wellens, M.; de Baynast, A.; Mahonen, P.)
Abstract	At present wireless devices are able to select their working frequency only to a limited extend although several measurements have shown that the current spectrum regulations are inefficient. Dynamic spectrum access is seen as a promising approach that might solve this inefficiency. Spectrum sensing is one of the main tasks involved. We compare in this paper four methods to efficiently sense the current spectrum based on the spectrum occupancy information statistics. The parameters of all methods are extracted from spectrum occupancy data gathered during an extensive measurement campaign. We show that the usage of historical information considerably improves the spectrum sensing process. We also show that the modelling of the periodic behaviour of the licensed signals leads to negligible performance enhancements because only very few periods shorter than several minutes can be found within 20 MHz-6 GHz.
Starting Page	717
Ending Page	722
File Size	160076
Page Count	6
File Format	PDF
ISBN	9781424419975
ISSN	15253511
DOI	10.1109/WCNC.2008.132
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Current measurement Performance gain Frequency measurement Wireless sensor networks Cognitive radio Communications Society Wireless networks Delay Gain measurement
Content Type	Text
Resource Type	Article

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