Inter-Operator Spectrum Sharing from a Game Theoretical Perspective - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Eurasip Journal on Applied Signal Processing Année : 2009

Inter-Operator Spectrum Sharing from a Game Theoretical Perspective

Résumé

We address the problem of spectrum sharing where competitive operators coexist in the same frequency band. First, we model this problem as a strategic non-cooperative game where operators simultaneously share the spectrum according to theNash Equilibrium (NE). Given a set of channel realizations, several Nash equilibria exist which renders the outcome of the game unpredictable. Then, in a cognitive context with the presence of primary and secondary operators, the inter-operator spectrum sharing problem is reformulated as a Stackelberg game using hierarchy where the primary operator is the leader. The Stackelberg Equilibrium (SE) is reached where the best response of the secondary operator is taken into account upon maximizing the primary operator's utility function. Moreover, an extension to the multiple operators spectrum sharing problem is given. It is shown that the Stackelberg approach yields better payoffs for operators compared to the classical water-filling approach. Finally, we assess the goodness of the proposed distributed approach by comparing its performance to the centralized approach.
Fichier principal
Vignette du fichier
eurasip-bennis-online.pdf (884.11 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00446284 , version 1 (12-01-2010)

Identifiants

Citer

Samson Lasaulce, M. Bennis, Merouane Debbah. Inter-Operator Spectrum Sharing from a Game Theoretical Perspective. Eurasip Journal on Applied Signal Processing, 2009, 2009 (8), pp.1-12. ⟨10.1155/2009/295739⟩. ⟨hal-00446284⟩
255 Consultations
340 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More