A priority queue model for competition with shared spectrum

Chang Liu, Randall A Berry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

Spectrum sharing has been put forward as a way to more efficiently use limited spectrum and thus increase wireless network capacity. This paper considers a scenario where a primary Service Provider (SP) shares spectrum with secondary SPs and competes for a common pool of customers. We study such a scenario using a model for price competition in which customers select a SP based on the sum of the SP's announced service price and the congestion incurred when using their service. Here, we assume that the primary has strict priority over the secondary and model the resulting congestion via a preemptive priority queue. We characterize the equilibrium of the resulting pricing game. In particular we find that when the service time has a small variance, secondary users can be excluded from the system, while the primary has to offer a lower price than it would if it were a monopolist due to the threat of entry. As the amount of available bandwidth increases, the primary SP's profit will decrease asymptotically to zero. In addition, for some scenarios, we show that social welfare may decrease with additional bandwidth and be less than that obtained without sharing.

Original languageEnglish (US)
Title of host publication2014 52nd Annual Allerton Conference on Communication, Control, and Computing, Allerton 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages629-636
Number of pages8
ISBN (Electronic)9781479980093
DOIs
StatePublished - Jan 30 2014
Event2014 52nd Annual Allerton Conference on Communication, Control, and Computing, Allerton 2014 - Monticello, United States
Duration: Sep 30 2014Oct 3 2014

Publication series

Name2014 52nd Annual Allerton Conference on Communication, Control, and Computing, Allerton 2014

Other

Other2014 52nd Annual Allerton Conference on Communication, Control, and Computing, Allerton 2014
CountryUnited States
CityMonticello
Period9/30/1410/3/14

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications

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