Master Thesis - 2014

In recent years, the number of portable mobile terminal users is increasing with improvement of the wireless communication environment. In addition, mobile multimedia services also bring the increase of wireless traffic and lack of spectrum resources. As a technique for more efficient spectrum use, spectrum sharing receives much attention.

Spectrum sharing is the method to use spectrum effectively by dynamic channel assignment between systems which differ in the range of cover area, transmission rate, etc. It dynamically assigns spectrum channels to increase the total wireless communication capacity. In a case where all providers are cooperative, the spectrum sharing can be realized easily and improve user throughput in average. In another case where providers are not cooperative, spectrum trading in which spectrum bands are rented among systems is used to promote spectrum sharing. To obtain more profit surely, however, non-cooperative providers have to estimate the fluctuation of the number of their connecting users correctly in order to decide the offered channel price.

In this thesis, we propose a spectrum sharing method to achieve both higher throughput and providers' profit by appropriate pricing using disaggregate behavioral model. Finally, we confirm that the effectiveness of proposed method by simulation experiments.