Competition in femtocell networks: Strategic access policies in the uplink - CentraleSupélec Accéder directement au contenu
Communication Dans Un Congrès Année : 2012

Competition in femtocell networks: Strategic access policies in the uplink

Résumé

In emerging small cell wireless, each femtocell access point (FAP) can either service its home subscribers exclusively (i.e., closed access) or open its access to accommodate a number of macrocell users so as to reduce cross-tier interference. In this paper, we propose a game-theoretic framework that enables the FAPs to strategically decide on their uplink access policy. We formulate a noncooperative game in which the FAPs are the players that want to strategically decide on whether to use a closed or an open access policy in order to maximize the performance of their registered users. Each FAP aims at optimizing the tradeoff between reducing cross-tier interference, by admitting macrocell users, and the associated cost in terms of allocated resources. Using novel analytical techniques, we show that the game always admits a pure strategy Nash equilibrium, despite the discontinuities in the utility functions. Further, we propose a distributed algorithm that can be adopted by the FAPs to reach their equilibrium access policies. Simulation results show that the proposed algorithm provides an improvement of 85.4% relative to an optimized open access scheme in the average worst-case FAP utility.
Fichier principal
Vignette du fichier
1569516227.pdf (155.74 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00769468 , version 1 (08-01-2013)

Identifiants

Citer

Ali Khanafer, Walid Saad, Tamer Başar, Mérouane Debbah. Competition in femtocell networks: Strategic access policies in the uplink. IEEE ICC 2012, Jun 2012, Ottawa, Canada. pp.5070 - 5074, ⟨10.1109/ICC.2012.6364563⟩. ⟨hal-00769468⟩
75 Consultations
141 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More