NDLI: FFT and filter bank based spectrum sensing and spectrum utilization for cogntive radios

Content Provider	IEEE Xplore Digital Library
Author	Dikmese, S. Srinivasan, S. Renfors, M.
Copyright Year	2012
Description	Author affiliation: Department of Communications Engineering, Tampere University of Technology, Tampere, Finland (Dikmese, S.; Srinivasan, S.; Renfors, M.)
Abstract	Wireless Local Area Networks (WLAN) such as the OFDM based 802.11g system is designed to operate in 2.4 GHz ISM band. IEEE 802.11 devices are used at the same frequency band with various other applications, which causes interference between different users and leads to significant performance degradation. Hence, Cognitive Radio (CR) technology has been considered for coordinating the spectrum usage in a better way in this band. Spectrum sensing is one of the most important functions in a CR. In this study, filter bank based wideband spectrum sensing techniques are applied for detecting WLAN signals and spectral holes. Also filter bank based multicarrier techniques, together with a water-filling based subcarrier loading algorithm, are considered for effective exploitation of the detected holes. Clear benefit is demonstrated for using spectrally well-contained subband processing instead of basic FFT approaches.
Starting Page	1
Ending Page	5
File Size	1049259
Page Count	5
File Format	PDF
ISBN	9781467302746
e-ISBN	9781467302760
DOI	10.1109/ISCCSP.2012.6217788
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-02
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Wireless LAN Loading algorithms OFDM Filter banks spectrum Utilization CR filter bank Loading FFT spectrum sensing Sensors Signal to noise ratio
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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