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Secondary Access to the Radar Spectrum Bands: Regulatory and Business Implications
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.ORCID iD: 0000-0001-7642-3067
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.ORCID iD: 0000-0003-4986-6123
2013 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The large expected increase in the capacity requirements raises not only technical issues but also regulatory and business challenges. One of the key methods to increase the capacity of mobile networks in a cost efficient way is to find additional frequency spectrum. However, it is a difficult task since most of the spectrum is already allocated in long-term basis. Therefore, innovation in the technical and regulatory domain is needed to make additional spectrum available for mobile communications that not only improve spectrum utilization but also to make long-term investments feasible. Secondary spectrum access was proposed as a technical solution to improve spectrum utilization. However, uncertainties on the regulatory regime have been the main “show-stopper” for long-term investments.  This paper has devised techno-regulatory conditions for making large-scale secondary access to the "radar bands" an attractive business scenario from the MNO's perspective. Our numerical results showed that applying regulation on the deployment of secondary users can significantly improve sharing opportunities, especially in lower frequency bands (S-band) where the impact of interference aggregation is higher. We also identified Licensed Shared Access (LSA) as suitable authorization model for secondary access to the "radar bands" since it provides the level of reliability on the protection against harmful interference and it could also motivate long-term investments. Finally, establishing the right spectrum access cost or license fee for secondary access to the "radar bands" is crucial for achieving competitive edge over alternatives indoor solutions.

Place, publisher, year, edition, pages
2013.
Keyword [en]
radar bands, secondary spectrum access, secondary access availability, spectrum opportunities.
National Category
Telecommunications
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-132302OAI: oai:DiVA.org:kth-132302DiVA: diva2:659486
Conference
24th European Regional Conference of the International Telecommunications Society, Florence, Italy, 20 - 23 October 2013
Projects
Mobile and wireless communications Enablers for Twenty-twenty (2020) Information Society (METIS)
Funder
EU, FP7, Seventh Framework ProgrammeWireless@kth
Note

QC 20131108

Available from: 2013-10-25 Created: 2013-10-25 Last updated: 2014-05-19Bibliographically approved
In thesis
1. On the Deployment of Large-Scale High-Capacity Wireless Systems with Secondary Spectrum Access
Open this publication in new window or tab >>On the Deployment of Large-Scale High-Capacity Wireless Systems with Secondary Spectrum Access
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The avalanche in mobile data consumption represents a big challenge for mobile networks operators and national regulators. This thesis focuses on finding additional spectrum to meet this demand in a cost-efficient way by considering shared spectrum access. Our studies aim at identifying key factors in achieving large-scale business success,quantifying the spectrum availability and identifying suitable regulatory/sharing polices for large-scale secondary access in the aeronautical and radar bands. This thesis proposes a research methodology, that considers business, technical and regulatory aspects involved in assessing commercial viability of large-scale deployment of wireless networks, employing vertical spectrum sharing in the aeronautical and radar bands. We pinpoint the following criteria which are critical in ensuring business success:spectrum availability, radio technology availability, low-cost end-userdevices, system scalability and quality of service. Our investigation centers on the technical aspects of these criteria, and thus deals mainly with the assessment of spectrum availability. The availability of spectrum opportunities is found to be ample for adjacent channel usage despite the strict requirements of the radar receiver. However, it is alsovery location-dependent and mostly non-contiguous.Finally, with regard to the regulatory aspects, our results show thatapplying regulatory policies, especially to the deployment of secondary users, can boost availability in cities or urban areas where the capacity demand is high. In addition, Licensed Shared Access (LSA) is identified as a suitable regulatory framework to meet tough protection criteria ofthe radar receivers and to apply the selected regulatory policies to improve exploitation of sharing opportunities. Based on our results and analysis, we conclude that there is a significant amount of spectrum opportunities for large-scale secondary access in the aeronautical and radar bands from the technical point of view. However, the commercial viability of secondary spectrum access is still undetermined giventhe remaining uncertainties regarding its total cost and the exact time needed for relevant technology to become available. Moreover, thereis no single answer to the commercial viability since it will most likelydepend on the country or region in question, which affects the spectrum availability, which in turn is a key criterion for business success. Futurework should therefore strive to clarify these uncertainties and to identify new responsibilities for all the entities involved in the LSA framework. Moreover, a quantitative evaluation would be needed to obtain more explicit conclusions on the business viability.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2014. viii, 58 p.
Series
TRITA-ICT-COS, ISSN 1653-6347 ; 14:04
National Category
Telecommunications Communication Systems
Research subject
SRA - ICT
Identifiers
urn:nbn:se:kth:diva-144861 (URN)
Public defence
2014-05-26, Sal D, Forum Building, Isafjordsgatan 39, Kista, 14:00 (English)
Opponent
Supervisors
Funder
ICT - The Next Generation
Note

QC 20140519

Available from: 2014-05-19 Created: 2014-04-29 Last updated: 2014-05-19Bibliographically approved

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Sung, Ki WonZander, Jens

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