NDLI: A channel availability classification for Cognitive Radio Networks using a monitoring network

Content Provider	IEEE Xplore Digital Library
Author	Canberk, B. Oktug, S.
Copyright Year	2012
Description	Author affiliation: Computer Engineering Department, Istanbul Technical University, Ayazaga 34469, Istanbul-Turkey (Canberk, B.; Oktug, S.)
Abstract	In Cognitive Radio (CR) networks, the accurate information gathering for the channel availability brings some major challenges. It is seen that the availability should be classified effectively and opportunistically considering the channel utilization levels of the licensed users. Moreover, local spectrum monitoring mechanisms should also be used for accurate determination of the channel availability. Considering these challenges, in this paper, an estimation and correlation based scheme is proposed to build the availability map of the licensed channels according to the utilization requirements of the CR users. The proposed scheme is aided by a monitoring network for more accurate and robust detection of the available spectrum. The monitoring network is only responsible of sensing the channels and estimating the availability using auto-regression analysis. The monitoring nodes disseminate the estimations to the centralized entity, who builds the availability map for the channels to be used by the CR users. This classification map is prepared by considering the characteristics of PU channels and it is based on the cross-correlation analysis of the estimations by the monitoring nodes. The evaluations show that the proposed estimation and correlation based scheme improves the estimation accuracy of the licensed channels as well as the overall utilization performance compared to the fully-cooperative traditional scheme.
Starting Page	000690
Ending Page	000695
File Size	886259
Page Count	6
File Format	PDF
ISBN	9781467327121
ISSN	15301346
e-ISBN	9781467327138
e-ISBN	9781467327114
DOI	10.1109/ISCC.2012.6249378
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-01
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monitoring Channel estimation Correlation Estimation Sensors Availability Quality of service Utilization Cognitive Radio Networks Spectrum Availability Spectrum Mapping QoS Spectrum Estimation Autoregression
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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