Operator competition with asymmetric strategies in shared spectrum
2012 (English)In: 2012 IEEE Wireless Communications and Networking Conference, WCNC, IEEE Communications Society, 2012, 3183-3187 p.Conference paper (Refereed)
As the regulation in wireless communications is moving toward a more flexible and efficient way of managing radio spectrum, it is envisaged that multiple small-sized cellular networks owned by different operators, e.g., facility owners or local operators, will operate in close vicinity on shared spectrum. In this environment, the networks may compete for their own utilities in a selfish manner with giving harmful internetwork interference to competitors. In practice, it is not so unusual that each operator has different fairness criteria or quality of service (QoS) strategies by employing distinct objective functions from competitors. Particularly, we in this paper study power control competition between two networks with the sum of rates (SR) and the minimum rate (MR) as their objective functions, respectively. By exploring Nash equilibria, we identify that the MR network benefits from the objective asymmetry thanks to the adaptability of its competitor, i.e., no constraint in the SR objective. On the other hand, the SR network takes disadvantage due to the fairness requirement reflected in the MR objective of its competitor. However, such asymmetry effects in competition becomes negligible with marginal network separation, e.g., indoor deployment in adjacent buildings. Additionally, we identify cooperation potential with the proper choice of a common objective function although the asymmetric objectives are difficult to be aligned.
Place, publisher, year, edition, pages
IEEE Communications Society, 2012. 3183-3187 p.
, IEEE Wireless Communications and Networking Conference. Proceedings, ISSN 1525-3511
Adjacent buildings, Cellular network, Facility owners, Fairness criteria, Local operators, Nash equilibria, Objective functions, Radio spectra, Wireless communications, Quality of service, Telecommunication networks, Wireless telecommunication systems
IdentifiersURN: urn:nbn:se:kth:diva-101553DOI: 10.1109/WCNC.2012.6214355ISI: 000324580703052ScopusID: 2-s2.0-84864349727ISBN: 978-146730437-5OAI: oai:DiVA.org:kth-101553DiVA: diva2:549686
IEEE Wireless Communications and Networking Conference, WCNC 2012; Paris; 1 April 2012 through 4 April 2012
ProjectsThe Mobile Broadband Project Phase 3: “More for less” (MBB++)
FunderICT - The Next GenerationWireless@kth
QC 201209052012-09-052012-08-302014-04-16Bibliographically approved