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Market-based Spectrum Sharing in Capacity-limited Heterogeneous Wireless Networks
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
2011 (English)In: Proceedings of Communication Technologies Workshop (SWE-CTW), 2011 IEEE Swedish, 2011, 86-91 p.Conference paper, Published paper (Refereed)
Abstract [en]

With the launch of flat-rate mobile broadband Internet access, wireless service providers (WSP) have faced a fierce competition for users. This became even more challenging issue with the expansion of smartphones and cloud computing applications driving the demand for mobile broadband access. Allowing users to get service offers freely from any wireless service provider, some aspects should be considered thoroughly. Although the WSP's service coverage has traditionally been considered a legitimate necessity, the network capacity is limited and should be expanded to support a growing user demand. Consequently, the wireless service providers must exploit cost-effective solutions on deployment of radio access technologies that in turn would embody new sources to generate more revenue. These solutions would be affected by the competitor strategies in terms of their network capacity and coverage. In this paper, we consider this problem in the context of competitivewireless networks, operating in heterogeneous coverage areas. We observe market-based spectrum sharing framework that ensures an efficient resource allocation, meanwhile it guarantees profit maximization and facilitates a highspectrum utilization through the WSP competition. The paper presents a rigorous analysis of the framework properties that provides insights into the deployment and pricing strategies. We provide numerical results that can help identify parameters which affect the WSPs' economical viability. These insights can be applied by future WSPs.

Place, publisher, year, edition, pages
2011. 86-91 p.
Series
Examensarbete Byggnadsteknik
Keyword [en]
capacity, competition, coverage, resource allocation, wireless access markets
National Category
Telecommunications
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-62717DOI: 10.1109/Swe-CTW.2011.6082495Scopus ID: 2-s2.0-83755172297ISBN: 978-1-4577-1877-9 (print)OAI: oai:DiVA.org:kth-62717DiVA: diva2:480980
Conference
Communication Technologies Workshop (SWE-CTW), 2011 IEEE Swedish, Stockholm, October 19-21, 2011
Projects
MODyS
Available from: 2012-01-20 Created: 2012-01-20 Last updated: 2012-05-29Bibliographically approved
In thesis
1. Real-Time Spectrum Access in Heterogeneous Wireless Networks: Competition, Deployment and Pricing
Open this publication in new window or tab >>Real-Time Spectrum Access in Heterogeneous Wireless Networks: Competition, Deployment and Pricing
2012 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The first decade of twenty-first century has witnessed the spread of innovative wireless technologies: novel wireless network architectures and services; operations in unlicensed bands, advanced mobile devices and smartphones. All these have pondered growing demand for wireless broadband services, so that more spectra are required. Consequently,the advent of flat-rate service pricing for mobile broadband services plus continuous investments in a network infrastructure and shortage of licensed spectrum make it more difficult for current wireless operators (OPs) to financially sustain themselves in a competitive environment.

Since existing, fixed spectrum allocation (FSA), mechanism offers very limited flexibility, dynamic spectrum access from the market point of view is exploited here to support such flexibility. A framework of competitive spectrum access, where available spectrum can be leased based on the outcome of competition between heterogeneous wireless operators in a short-term fashion, is reviewed in this thesis. The main objectives are: (1) to maximize spectrum efficiency by utilizing market mechanisms in a heterogeneous setting, and (2) to identify which conditions and criteria should be applied to allow heterogeneous wireless networks to be viable in the marketplace.

Under the competitive spectrum access framework, we explore three directions to tackle these objectives for a case of a two-operators system. First, we will look at how an inter-operator competition can affect the operator profits under an asymmetry in their networks. Then, we will analyze which deployment strategies in a heterogeneous environment should be utilized. Finally, we will consider which pricing strategies can be applied by competing OPs to sustain themselves. Through analysis and extensive simulations, we show that heterogeneous access architectures and the scalable infrastructure deployment could improve not only spectrum utilization efficiency, but also facilitate viability of spectrum allocation in a competitive environment. As a conclusion, we believe that techno-economical approach used to assess a feasibility of the framework could help in the designing of future wireless systems to efficiently utilize both the infrastructure and the spectrum resources.

Place, publisher, year, edition, pages
Stockholm, Sweden: KTH Royal Institute of Technology, 2012. xi, 63 p.
Series
TRITA-ICT-COS, ISSN 1653-6347 ; 1205
National Category
Telecommunications
Research subject
SRA - ICT
Identifiers
urn:nbn:se:kth:diva-95143 (URN)978-91-7501-393-0 (ISBN)
Presentation
2012-06-05, Sal/Hall C1, ICT-KTH, Electrum, Isafjordsgatan 26, Kista, 14:00 (English)
Opponent
Supervisors
Projects
QUASAR
Funder
EU, FP7, Seventh Framework ProgrammeWireless@kth
Note

QC 20120529

Available from: 2012-05-29 Created: 2012-05-14 Last updated: 2016-04-21Bibliographically approved

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Citation style
  • apa
  • harvard1
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  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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  • Other locale
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Output format
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