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Location-specific spectrum sharing in heterogeneous networks
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Sähkötekniikan korkeakoulu |
Master's thesis
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S3029
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en
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53+8
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Abstract
The popularity of wireless mobile communication with enormous production of smart devices and applications increases the number of users in the wireless network. This increase of mobile users in the wireless network results insatiable demand for additional bandwidth. To improve network capacity of mobile operators efficient use of spectrum is critical. To improve the system capacity of operators and to provide flexible use of spectrum, we investigate a localized spectrum sharing between operators located at the same geographical area.
We provide a coordination mechanism for operators to form a common spectrum pool and to use it dynamically. The coordination between the operators is modeled using a game theoretical approach in a non-cooperative basis. We study the spectrum sharing at localized and non-localized level, where at localized level operators agree on spectrum sharing at small scale. In localized spectrum sharing operators share their spectrum at smaller areas, when compared to non-localized spectrum sharing.
Through numerical simulation, we analyze the performance of localized and non-localized spectrum sharing in comparison to the default orthogonal spectrum sharing mechanism. From the simulation results, we conclude that localized spectrum sharing outperforms non-localized spectrum sharing. Thus, spectrum sharing at smaller areas provides a better performance improvement than spectrum sharing at larger geographical areas.