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Identifier

000371852

Title

A game-theoretical modeling framework and simulation platform for cellular-based access markets

Alternative Title

Ανάπτυξη ενός παιγνιοθεωρητικού μοντέλου και μιας πλατφόρμας προσομοιώσεων

Author

Φορτετσανάκης, Γεώργιος Ηρακλής

Thesis advisor

Παπαδοπούλη, Μαρία

Abstract

The wireless access, use and traffic demand are on a fast rise, leading to an increased demand for radio spectrum. On the other hand, cur¬rent spectrum allocation policies are highly inefficient resulting in an underutilization of this valuable natural resource. To increase spec¬tral efficiency, the research community has proposed cognitive radios that enable new network architectures and access markets, opening new opportunities for business cases. Unlike traditional cellular-based markets, these markets have larger sizes, are more heterogeneous, and potentially can offer an improved set of services. This thesis presents a modeling framework and simulation platform for access markets. It integrates models of the customers (e.g., pref¬erence, demand, mobility, transmission power, willingness-to-pay), channel, provider infrastructure deployment, customer distribution, and price-adaptation mechanisms. Providers aim to maximize their own profit, while clients decide based on various criteria, such as the financial cost of their access, transmission rate and required transmis-sion power. Moreover, it introduces the "flexi-card", a novel service paradigm that allows a user with a cognitive radio to dynamically access Base stations (BSs) of different providers based on various cri¬teria, such as its profile, network conditions, and offered prices. Card users can select the appropriate operator and BS on a per-call ba¬sis. Customers could dynamically decide to buy a long-term subscrip¬tion or become card users. This research analyzes the evolution of a duopoly that offers the flexi-card service as well as long term subscrip¬tions, considering a diverse customer population from the perspective of customers, providers, and regulators. The analysis demonstrates that the flexi-card substantially improves the performance of a market in terms of the percentage of disconnected users, blocking probability, and social welfare.

Language

English

Subject

Access Markets

Cognitive Radios

Game Theory

Spectrum Markets

Αγορές πρόσβασης

Αγορές φάσματος

Γνωστικές ραδιοεπικοινωνίες

θεωρία παιγνίων

Issue date