What happens when cognitive terminals compete for a relaying node?

Abstract : We introduce a new channel, which consists of an interference channel (IC) in parallel with an interference relay channel (IRC), to analyze the interaction between two selfish and cognitive transmitters who compete for a relay implementing the amplify-and-forward protocol. It is shown that whatever the relay location there is always an equilibrium in the resource allocation game where the users selfishly share their power between the IC and IRC. The uniqueness and determination of this equilibrium is analyzed for two cases: the relay amplification gain is fixed; the IRC direct links are negligible. We show how to exploit this analysis to optimally locate the relay either in terms of individual rate or system sum-rate. Simulations are provided and show, in particular, how the users' selfish behavior leads to sharing the space in regions where the relay is used by only one user or not used at all.
Type de document :
Communication dans un congrès
IEEE International Conference on Accoustics, Speech and Signal Processing (ICASSP), Apr 2009, Taipei, Taiwan. pp. 2609-2612, 2009
Liste complète des métadonnées

Littérature citée [8 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-00403364
Contributeur : Elena Veronica Belmega <>
Soumis le : vendredi 10 juillet 2009 - 10:28:27
Dernière modification le : jeudi 5 avril 2018 - 12:30:04
Document(s) archivé(s) le : mardi 15 juin 2010 - 19:50:11

Fichier

icassp-vero-16jan09.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00403364, version 1

Collections

Citation

Elena Veronica Belmega, Brice Djeumou, Samson Lasaulce. What happens when cognitive terminals compete for a relaying node?. IEEE International Conference on Accoustics, Speech and Signal Processing (ICASSP), Apr 2009, Taipei, Taiwan. pp. 2609-2612, 2009. 〈hal-00403364〉

Partager

Métriques

Consultations de la notice

223

Téléchargements de fichiers

104