Offloading Content with Self-organizing Mobile Fogs

Abstract : Mobile users in an urban environment access content on the internet from different locations. It is challenging for the current service providers to cope with the increasing content demand from a large number of collocated mobile users. In-network caching to offload content at nodes closer to users alleviate the issue, though efficient cache management is required to find out who should cache what, when and where in an urban environment, given nodes limited computing, communication and caching resources. To address this, we first define a novel relation between content popularity and availability in the network and investigate a node's eligibility to cache content based on its urban reachability. We then allow nodes to self-organize into mobile fogs to increase the distributed cache and maximize content availability in a cost-effective manner. However, to cater rational nodes, we propose a coalition game for the nodes to offer a maximum " virtual cache " assuming a monetary reward is paid to them by the service/content provider. Nodes are allowed to merge into different spatio-temporal coalitions in order to increase the distributed cache size at the network edge. Results obtained through simulations using realistic urban mobility trace validate the performance of our caching system showing a ratio of 60 − 85% of cache hits compared to the 30 − 40% obtained by the existing schemes and 10% in case of no coalition.
Type de document :
Communication dans un congrès
ITC 2017 - 29th International Teletraffic Congress, Sep 2017, Genoa, Italy. pp. 1-9, 2017
Liste complète des métadonnées

Littérature citée [15 références]  Voir  Masquer  Télécharger
Contributeur : Junaid Ahmed Khan <>
Soumis le : mardi 11 juillet 2017 - 14:30:42
Dernière modification le : samedi 27 octobre 2018 - 01:20:21
Document(s) archivé(s) le : mercredi 24 janvier 2018 - 23:16:36


Fichiers produits par l'(les) auteur(s)


  • HAL Id : hal-01560289, version 1


Junaid Ahmed Khan, Cedric Westphal, Yacine Ghamri-Doudane. Offloading Content with Self-organizing Mobile Fogs. ITC 2017 - 29th International Teletraffic Congress, Sep 2017, Genoa, Italy. pp. 1-9, 2017. 〈hal-01560289〉



Consultations de la notice


Téléchargements de fichiers