NDLI: Measurement-Augmented Spectrum Databases for White Space Spectrum

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Measurement-Augmented Spectrum Databases for White Space Spectrum

Content Provider	ACM Digital Library
Author	Chakraborty, Ayon Das, Samir R.
Abstract	Spectrum databases used to estimate TV white space availability often provide inaccurate and largely conservative estimates as they are primarily based on empirical propagation models. This leads to 'loss' of white space spectrum that is critical in urban areas with large spectrum demand. While alternatives are possible in terms of incorporating direct spectrum measurements, the measurement locations must be judiciously chosen so that measurement effort is not prohibitive. Fundamentally, this boils down to addressing the estimation accuracy vs measurement effort question. We present a rigorous data driven analysis to address this using measurement data collected in parts of New York City metro area. We show that it is possible to develop models that estimate whether the current database estimates are reliable in a given location. Following this, we provide a recipe for developing a `measurement-augmented' spectrum database that takes the help of measurements where needed and falls back on the current propagation model-based database technique in the rest of the areas. The final takeaway is that it is possible to improve database accuracy significantly with only modest amount of measurements.
Starting Page	67
Ending Page	74
Page Count	8
File Format	PDF
ISBN	9781450332798
DOI	10.1145/2674005.2675001
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-12-02
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Tv whitespace Propagation model Spectrum databases
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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