Repeated Games For Inter-operator Spectrum Sharing

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Koufos, Konstantinos
dc.contributor.author Singh, Bikramjit
dc.date.accessioned 2014-09-01T07:52:03Z
dc.date.available 2014-09-01T07:52:03Z
dc.date.issued 2014-08-25
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/13922
dc.description.abstract As wireless communication becomes an ever-more evolving and pervasive part of the existing world, system capacity and Quality of Service (QoS) provisioning are becoming more critically evident. In order to improve system capacity and QoS, it is mandatory that we pay closer attention to operational bandwidth efficiency issues. We address this issue for two operators' spectrum sharing in the same geographical area. We model and analyze interactions between the competitive operators coexisting in the same frequency band as a strategic noncooperative game, where the operators simultaneously share the spectrum dynamically as per their relative requirement. If resources are allocated in a conventional way (static orthogonal allocation), spectrum utilization becomes inefficient when there is load asymmetry between the operators and low inter-operator interference. Theoretically, operators can share resources in a cooperative manner, but pragmatically they are reluctant to reveal their network information to competitors. By using game theory, we design a distributed implementation, in which self-interested operators play strategies and contend for the spectrum resources in a noncooperative manner. We have proposed two game theoretic approaches in the thesis, one using a virtual carrier price; and the other based on a mutual history of favors. The former approach takes into account a penalty proportional to spectrum usage in its utility function, whereas in the latter, operators play strategies based on their history of interactions, i.e., how well the other behaved in the past. Finally, based on the simulations, we assess the performance of the proposed game theoretic approaches in comparison to existing conventional allocations. en
dc.format.extent 72 + 10
dc.language.iso en en
dc.title Repeated Games For Inter-operator Spectrum Sharing en
dc.type G2 Pro gradu, diplomityö en
dc.contributor.school Sähkötekniikan korkeakoulu fi
dc.subject.keyword game theory en
dc.subject.keyword inter-operator spectrum sharing en
dc.subject.keyword noncooperative game en
dc.subject.keyword cooperative spectrum sharing en
dc.subject.keyword carrier price en
dc.subject.keyword surplus en
dc.identifier.urn URN:NBN:fi:aalto-201409012572
dc.programme.major Radio Communications fi
dc.programme.mcode S3019 fi
dc.type.ontasot Diplomityö fi
dc.type.ontasot Master's thesis en
dc.contributor.supervisor Tirkkonen, Olav
dc.programme TLT - Master’s Programme in Communications Engineering fi
dc.location P1 fi


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