NDLI: Multiple Access-Inspired Cooperative Spectrum Sensing for Cognitive Radio

Content Provider	IEEE Xplore Digital Library
Author	Lee, Chia-han Wolf, Wayne
Copyright Year	2007
Description	Author affiliation: Georgia Institute of Technology, Atlanta, GA (Wolf, Wayne) \|\| Princeton University, Princeton, NJ (Lee, Chia-han)
Abstract	The first challenge of cognitive radio is spectrum sensing. Cooperative spectrum sensing (CSS) has the advantage of better accuracy over non-cooperative schemes. One of the critical problems in CSS is the delay between sensing and decision. Wideband spectrum sensing forms another challenge due to its complexity and large dynamic range requirements. To solve these problems, we propose new co-operative spectrum sensing techniques inspired by multiple access methods: Time-division (TD), frequency-division (FD), staggered frequency-division (SFD), frequency-hopping (FH), irregular subband (IS), and staggered irregular subband (SIS) cooperative spectrum sensing. Co-operative users are first divided into groups. In TD-CSS, those groups in turn detect the presence of primary users to reduce delay. To tackle the difficulties of wideband spectrum sensing, FD-CSS assigns different groups to different spectrum bands. SFD-CSS can solve time delay and wideband spectrum sensing issues at the same time by making each group sequentially detect different frequency in different order. FH-CSS performs better than FD-CSS if the channel information is unknown. Finally, asymmetric band access concepts can be applied to CSS to allow different groups focus on frequency bands with irregular subband bandwidth using IS-CSS or SIS-CSS.
Starting Page	1
Ending Page	6
File Size	238909
Page Count	6
File Format	PDF
ISBN	9781424415120
DOI	10.1109/MILCOM.2007.4454740
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cognitive radio Cascading style sheets Bandwidth Interference Ultra wideband technology Propagation delay Time division multiple access Frequency division multiaccess Dynamic range Delay effects
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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