NDLI: Active interference cancellation technique for MB-OFDM cognitive radio

Content Provider	IEEE Xplore Digital Library
Author	Yamaguchi, H.
Copyright Year	2004
Description	Author affiliation: Texas Instruments, Tsukuba Technology Center, 17 Miyukigaoka Tsukuba Ibaraki, 305-0841, Japan (Yamaguchi, H.)
Abstract	Ultra Wideband transmit power (in-band) is regulated to be -41.25 dBm/MHz (in the United States), but in the future, it may be flexibly relaxed subject to the cognitive-radio spectrum policy. However, in close proximity of a protected radio service, transmission at the relaxed power might inflict an excessive degradation on the service quality. Applying the general analog or digital notch filter in the UWB transmitter (baseband) is the simplest but not a favorable approach due to the increased cost and the power consumption of the device. In OFDM, turning off the interfering tones has been studied as the alternative solution, but the inter-carrier interference may limit the notch depth to 5-10 dB. This paper discusses a new approach that enables the accurate notch bandwidth and depth control for the general OFDM transmitter. The technique demonstrates the fundamental advantage of the OFDM-based UWB solution[l] for the future cognitive ratio.
Starting Page	1105
Ending Page	1108
File Size	420116
Page Count	4
File Format	PDF
ISBN	1580539920
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-12
Publisher Place	The Netherlands
Access Restriction	Subscribed
Rights Holder	European Microwave Assoc.
Subject Keyword	Interference cancellation Cognitive radio OFDM Bandwidth Filters Radio transmitters Ultra wideband technology Baseband Turning Throughput
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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