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On configuring radio resources in virtualized fractional frequency reuse cellular networks

Wang, X and Krishnamurthy, P and Tipper, D (2016) On configuring radio resources in virtualized fractional frequency reuse cellular networks. Computer Communications, 79. 78 - 91. ISSN 0140-3664

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Abstract

© 2015 Elsevier B.V. All rights reserved. Virtualization of wireless networks holds the promise of major gains in resource usage efficiency through spectrum/radio resources sharing. Unlike the case in wired networks, achieving high capacity, providing effective isolation, and customization of the network requires intelligent configuration of wireless resources due to the effects of interference. In this paper, we focus on how to configure the "over-the-air" part of virtual wireless networks to enable simultaneous use of radio resources that overlap geographically. A configuration framework is proposed based on an infrastructure cellular network that employs fractional frequency reuse (FFR) and Multiple-input Multiple-output (MIMO) to combat interference. Multiple scenarios are examined that include various network sizes and base station distances. Five radio resources configuration cases are developed and investigated with each of these scenarios for a number of parameter settings (e.g., transmit power, MIMO degree). From the analysis of capacity data obtained from simulations, we observe some general trends in the aggregate spectral efficiency, and more importantly, a variety of tradeoffs between service providers (SPs) or virtual network operators. Based on these tradeoffs, we create configuration maps using which, a network resource manager can select specific network configurations (transmit power, MIMO, etc.) to meet the demand and capabilities of SPs and their subscribers.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Wang, X
Krishnamurthy, Pprashk@pitt.eduPRASHK
Tipper, Ddtipper@pitt.eduDTIPPER
Date: 1 April 2016
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Computer Communications
Volume: 79
Page Range: 78 - 91
DOI or Unique Handle: 10.1016/j.comcom.2015.10.013
Institution: University of Pittsburgh
Schools and Programs: School of Information Sciences > Telecommunications
Refereed: Yes
ISSN: 0140-3664
Date Deposited: 29 Jun 2016 15:25
Last Modified: 13 Oct 2017 23:55
URI: http://d-scholarship.pitt.edu/id/eprint/28448

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