Optimal Admission Control of Secondary Users in Preemptive Cognitive Radio Networks

Abstract : We study optimal admission control of secondary users (SUs) in cognitive radio (CR) networks in presence of preemption. In this model, when a primary user (PU) arrives to the system and finds all the channels busy, it preempts an SU unless all the users in the system are PUs. We apply admission control on the SUs only. Using dynamic programming (DP), we find the optimal admission control policy that maximizes the long- run average profit. As our main contribution, we show that the optimal admission control of the SUs depends only on the total number of users in the system (i.e. it does not depend on the number of PUs and SUs in the system individually) and is of threshold type. Therefore, although the system is modeled as a two-dimensional Markov chain, our findings allow simple and efficient computa- tion of the optimal control policy.
Type de document :
Communication dans un congrès
WiOpt'12: Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, May 2012, Paderborn, Germany. pp.138-144, 2012
Liste complète des métadonnées

Littérature citée [20 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-00763408
Contributeur : Service Ist Inria Sophia Antipolis-Méditerranée / I3s <>
Soumis le : lundi 10 décembre 2012 - 17:04:06
Dernière modification le : mercredi 12 décembre 2012 - 10:25:55
Document(s) archivé(s) le : lundi 11 mars 2013 - 12:51:41

Fichier

p138-turhan.pdf
Accord explicite pour ce dépôt

Identifiants

  • HAL Id : hal-00763408, version 1

Collections

Citation

Aylin Turhan, Murat Alanyali, David Starobinski. Optimal Admission Control of Secondary Users in Preemptive Cognitive Radio Networks. WiOpt'12: Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, May 2012, Paderborn, Germany. pp.138-144, 2012. 〈hal-00763408〉

Partager

Métriques

Consultations de la notice

54

Téléchargements de fichiers

150