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Towards Open Mobile Broadband Market with Energy-Efficient Deployment
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
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
2011 (English)In: Proceedings of the 10th Scandinavian Workshop on Wireless Ad-hoc Networks (ADHOC'11): Wireless Architectures for the Internet Things, 2011Conference paper (Other academic)
Abstract [en]

A growing demand for mobile broadband services will, sooner or later, cause a service provider to face problems in terms of network capacity. The pressurizing situation is more noticeable in a highly competitive environment. It is challenging for a new service provider to maximize the profitability while, at the same time, maintain high quality services. For virtually any network deployment strategy, the service provider will need to look at ways to reduce capital expenses (CAPEX) to decrease the cost per service. A better energy utilization is believed to have the potential to lower the network operation expenses (OPEX) and to balance network coverage versus user traffic. A cost structure and energy-efficiency in the mobile broadband network is crucial for success. In this paper, we consider a competition between incumbent and entrant providers, where the entrant chooses a suitable deployment strategy at the market entry. Both providers are profit- maximizers. We propose two competitive deployment strategies (“Cost Leadership” and “Differential Pricing” strategy) with an energy consumption constraint. The system performance is evaluated in terms of network size (market share), transmitted power, antenna height and user preference. The simplistic model used in this paper gives a clear understanding of investment needed for the expected coverage and capacity of the network. A provider who chooses to deploy a radio access technology smartly, focusing primarily on business strategy and cost efficiency, would benefit greatly.

Place, publisher, year, edition, pages
National Category
URN: urn:nbn:se:kth:diva-62727OAI: diva2:480993
10th Scandinavian Workshop on Wireless Ad-hoc Networks (ADHOC'11), Stockholm, May 10-11, 2011

QC 20120416

Available from: 2012-01-20 Created: 2012-01-20 Last updated: 2014-01-16Bibliographically 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.
TRITA-ICT-COS, ISSN 1653-6347 ; 1205
National Category
Research subject
urn:nbn:se:kth:diva-95143 (URN)978-91-7501-393-0 (ISBN)
2012-06-05, Sal/Hall C1, ICT-KTH, Electrum, Isafjordsgatan 26, Kista, 14:00 (English)
EU, FP7, Seventh Framework ProgrammeWireless@kth

QC 20120529

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

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Khamit, SaltanatZander, Jens
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