SURF: A distributed channel selection strategy for data dissemination in multi-hop cognitive radio networks

نویسندگان

  • Mubashir Husain Rehmani
  • Aline Carneiro Viana
  • Hicham Khalife
  • Serge Fdida
چکیده

In this paper, we propose an intelligent and distributed channel selection strategy for efficient data dissemination in multi-hop cognitive radio network. Our strategy, SURF, classifies the available channels and uses them efficiently to increase data dissemination reliability in multi-hop cognitive radio networks. The classification is done on the basis of primary radio unoccupancy and of the number of cognitive radio neighbors using the channels. Through extensive NS-2 simulations, we study the performance of SURF compared to three related approaches. Simulation results confirm that our approach is effective in selecting the best channels for efficient communication (in terms of less primary radio interference) and for highest dissemination reachability in multi-hop cognitive radio networks. Key-words: multi-hop cognitive radio networks, dynamic channel selection, data dissemination. ∗ LIP6/Universite Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France † INRIA, France and TU-Berlin, Germany ‡ LaBRI/ENSEIRB, Université de Bordeaux, France § LIP6/Universite Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France in ria -0 05 96 22 4, v er si on 3 31 J ul 2 01 1 SURF: Une stratégie distribuée de sélection des canaux pour la diffusion de données dans les réseaux radio cognitifs multi-sauts Résumé : Nous présentons dans cet article une nouvelle stratégie de sélection de fréquences pour la dissémination fiable des données dans le réseau radio cognitifs multi-sauts. En explorant dynamiquement les ressources résiduelles sur les fréquences des primaires et en contrôlant le nombre de CR sur une fréquence particuliére, notre stratégie SURF permet d’augmenter la fiabilité de diffusion des données dans les réseaux radio cognitif multi-sauts. Grâce à une large étude basées sur des simulations sur NS-2, nous étudions les performances de SURF par rapport à trois autres approches liées. Les résultats de simulation confirment que notre stratégie permet la sélection des meilleures fréquences adaptées à une dissémination fiable et efficace des données dans un réseau radio cognitifs multi-sauts. Mots-clés : Réseaux radio cognitifs multi-sauts, sélection dynamique de fréquence, dissémination de données. in ria -0 05 96 22 4, v er si on 3 31 J ul 2 01 1 SURF: A Distributed Channel Selection Strategy 3

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عنوان ژورنال:
  • Computer Communications

دوره 36  شماره 

صفحات  -

تاریخ انتشار 2013