NDLI: Virtual occupancy in cognitive radio

Content Provider	IEEE Xplore Digital Library
Author	Burke, M. Lally, B.T. Kerans, A.J.
Copyright Year	2011
Description	Author affiliation: Australian Communications and Media Authority, PO Box 78 Belconnen, ACT, Australia 2616 (Burke, M.; Lally, B.T.; Kerans, A.J.)
Abstract	Cognitive radio technologies have the potential to increase the efficiency and effectiveness with which the radiofrequency spectrum is used. However, before cognitive radio devices are brought into widespread use, planning and regulatory arrangements must be considered and developed where appropriate to ensure adequate protection for existing users. This paper addresses the issue of harmful intermodulation interference caused by the mixing of a transmission from a cognitive radio device with that from a licensed transmitter in the land mobile radio service. Due to the generation of intermodulation products, seemingly open channels may be unable to be used by cognitive radio devices. This situation is termed virtual occupancy. In this paper, a model is described to characterise the effect of virtual occupancy on the availability of channels for use by a cognitive radio device in the land mobile service in the radiofrequency band from 450 to 470 MHz. The results show that for areas where the spectrum is highly allocated, virtual occupancy could be a significant barrier to the deployment of cognitive radios in the land mobile radio service.
Starting Page	328
Ending Page	336
File Size	602923
Page Count	9
File Format	PDF
ISBN	9781457701771
e-ISBN	9781457701788
e-ISBN	9781457701764
DOI	10.1109/DYSPAN.2011.5936221
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-03
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	intermodulation interference cognitive radio Radio transmitters virutal occupancy Receivers Interference Mobile communication land mobile Cavity resonators Band pass filters Cognitive radio
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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