NDLI: Spectrum sensing for cognitive radio networks: The need for cross-layer design approach for multimedia applications

Content Provider	IEEE Xplore Digital Library
Author	Msumba, J.A. Xu, H.J.
Copyright Year	2011
Description	Author affiliation: School of Electrical, Electronic and Computer Engineering, University of KwaZulu-Natal, Durban, South Africa (Msumba, J.A.; Xu, H.J.)
Abstract	Inefficient use of radio spectrum necessitates the use of cognitive radio technology to exploit the underutilized radio spectrum opportunistically. Spectrum sensing enables cognitive radio user to continuously sense the channel before accessing in order to avoid interference to licensed user and other radio systems. Most of existing research in cognitive radio had been mainly dedicated to the physical layer aspect of the cognitive radio design. Recently, some research efforts were carried out to investigate the impact of physical layer information on upper layer performance. We review the conventional energy detection spectrum sensing, and a cooperative relay diversity-based spectrum sensing using amplify and forward protocol. We also discuss cooperative spectrum sensing where multiuser are involved in spectrum sensing. Finally we briefly present a cross layer design approach proposal for multimedia transmission over cognitive radio networks framework as our work in progress.
Starting Page	1
Ending Page	6
File Size	808237
Page Count	6
File Format	PDF
ISBN	9781612849928
ISSN	21530033
e-ISBN	9781612849935
DOI	10.1109/AFRCON.2011.6072038
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-13
Publisher Place	Zambia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cognitive radio Detectors Protocols Signal to noise ratio Relays AWGN Cross-Layer Design Cognitive Radio Spectrum Sensing Energy Detector
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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