NDLI: SVD based sensing of a wireless microphone signal in cognitive radio networks

Content Provider	IEEE Xplore Digital Library
Author	Shaoyi Xu Yanlei Shang Haiming Wang
Copyright Year	2008
Description	Author affiliation: Nokia (China) Investment CO. Ltd., Beijing, China (Haiming Wang) \|\| Sch. of Telecommun. Eng., BUPT, Beijing, China (Shaoyi Xu; Yanlei Shang)
Abstract	In a wireless regional area networks (WRAN) network, the presence of a wireless microphone (WM) signal must be detected as a primary user. However, very narrow bandwidth and low power makes it difficult to sense a WM signal. In this paper, a singular value decomposition (SVD)-based approach is presented to sense and estimate a WM signal. After performing SVD on the received data matrix, the presence of a WM signal can be detected and then the center frequency of a WM signal can be estimated. By doing so, a guard bandwidth is retained such that the other spectrum in this sensing band is still available for the secondary users and the spectrum efficiency can be improved. Simulation results prove the better detection performance by comparing the proposed method and the traditional energy detection. Simulations also show a high frequency estimation precision by using the proposed SVD-based algorithm as well.
Starting Page	222
Ending Page	226
File Size	137592
Page Count	5
File Format	PDF
ISBN	9781424424238
DOI	10.1109/ICCS.2008.4737176
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Microphones Cognitive radio Chromium Signal detection Bandwidth Frequency estimation Singular value decomposition TV Matrix decomposition singular value decomposition (SVD) Cognitive Radio (CR) primary user (PU) secondary user (SU)
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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