NDLI: Can statistical propagation models be saved by real 3D city data?: A regionalized study of radio coverage in New York City

Content Provider	IEEE Xplore Digital Library
Author	Simic, L. Riihijarvi, J. Mahonen, P.
Copyright Year	2015
Description	Author affiliation: Inst. for Networked Syst., RWTH Aachen Univ., Aachen, Germany (Simic, L.; Riihijarvi, J.; Mahonen, P.)
Abstract	Accurate radio propagation models are critical for interference and spectrum management, especially in scenarios involving dynamic spectrum access and/or inter-system coexistence in dense heterogeneous networks, due to the effect of aggregate error margins in the interference estimate. Despite their established limited accuracy, statistical path loss models often continue to be used to predict radio coverage for emerging wireless networks. In reality, urban radio coverage is highly influenced by the complex idiosyncratic structure of a given city propagation environment. In this paper, we present a joint study of the radio coverage - via detailed propagation simulations in WinProp - and statistics of the urban layout from 3D city data for seven regions of New York City (NYC). Our results reveal a very large variability in the received signal strength (RSS) among the regions (difference of up to 13.5 dB in the median RSS), demonstrating the inadequacy of simple urban propagation models for setting interference limits with bounded safety margins. A few works in the early literature had proposed to improve the accuracy of statistical propagation models by incorporating correction terms that are site-specific, as derived from 3D building data. However, the validity of such an approach is supported solely by a few localized measurement campaigns. The results of our detailed regionalized study of radio coverage over 250 km2 of NYC suggest that urban coverage prediction errors depend on the city layout in a much more nuanced manner. We show that the distribution of building heights shows no apparent correlation with RSS, and that although building density is coarsely correlated with RSS for different areas of Manhattan, this does not hold for the Bronx. We thus argue that much more sophisticated correction factors would need to be developed to substantially improve the accuracy of statistical propagation models; alternatively, if this is not feasible, site-specific coverage estimate calibration is unavoidable.
Starting Page	285
Ending Page	288
File Size	1374121
Page Count	4
File Format	PDF
ISBN	9781479974528
DOI	10.1109/DySPAN.2015.7343920
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-29
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Three-dimensional displays Buildings Layout Dynamic spectrum access Interference Cities and towns Data models
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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