logo EDITE Salah Eddine BELOUANAS
Salah Eddine BELOUANAS
État académique
Thèse soutenue le 2017-09-29
Sujet: Communications opportunistes dans des environnements hybrides contraints
Direction de thèse:
Encadrement de thèse:
Ellipse bleue: doctorant, ellipse jaune: docteur, rectangle vert: permanent, rectangle jaune: HDR. Trait vert: encadrant de thèse, trait bleu: directeur de thèse, pointillé: jury d'évaluation à mi-parcours ou jury de thèse.
Productions scientifiques
Content Centricity in Constrained Cellular-Assisted D2D Communications
International audience
The huge increase of mobile traffic in the latest years has put cellular networks under pressure. To face this situation, operators propose to adopt data offloading techniques based on device-to-device communications to alleviate their infrastructure. In this paper, we consider a specific scenario in which the cellular channel has severe capacity limitations. Existing offloading techniques focus on the underlying communication mechanisms and fail to properly manage the interest users have in content. The straightforward approach to tackle this issue is to rely on the content-centric networking (CCN) paradigm. Nevertheless, the hybrid nature of our scenario makes this vision challenging—what should circulate through the cellular channel and what should remain within the opportunistic network? In this paper, we investigate our target scenario and identify a number of challenges therein. We finally define a high-level architecture that we intend to instantiate in the case of a public infrastructure scenario.
Ad Hoc Networks https://hal.archives-ouvertes.fr/hal-01099738 Ad Hoc Networks, Aug 2014, Rhodes, Greece. <http://adhocnets.org/2014/show/home> http://adhocnets.org/2014/show/homeConference papers 2014-08-18
SCoD: Saving Cellular Resources by Delaying Transmissions of Popular Content
International audience
At a time when operators struggle with unprecedented mobile data growth, saving cellular resources is of utmost importance. The first traffic that we must get rid of is redundant traffic. This happens, for example, when popular data must be disseminated to a population of subscribers. We proposeSCoD, a strategy that benefits from the delay-tolerance of some applications to defer transmissions to appropriate instants. The idea is to wait for nodes to gather around a minimum number of access points so that the total number of transmissions is reduced. SCoD leverages as much as possible node mobility for the sake of clustering; to this end, SCoD relies on different guiding functions that trigger, whenever appropriate, a transmission. We assess the performance of our strategy by running simulations on a realistic vehicular dataset and find out that it leads to significant improvements when compared with traditional (instantaneous) dissemination strategies.
IEEE Twelfth International Symposium on Wireless Communication Systems https://hal.archives-ouvertes.fr/hal-01203370 IEEE Twelfth International Symposium on Wireless Communication Systems, Aug 2015, Brussels, Belgium. <http://www.iswcs2015.org/> http://www.iswcs2015.org/ARRAY(0x7f5b5751c288) 2015-08-25
Leveraging Replication in Content-Centric Networks
International audience
This paper focuses on the communication functionalities of content-centric networks. More especially, we take advantage of the widespread availability of content as today data objects may be replicated or moved at several locations to minimize content access time or to provide resiliency. We propose a scalable interdomain routing architecture designed to meet the needs of data-intensive applications. Our protocol complements CCN's routing framework with the ability to discover routes that allow users to retrieve replicated content from the most efficient location. The distinctive feature of our approach lies in the use of the caching capabilities of content routers to store and maintain the routes discovered towards the closest replicas. Our simulation results show an increase in content access efficiency by minimizing retrieval time and by maximizing the bandwidth demand.
Global Information Infrastructure and Networking Symposium https://hal.archives-ouvertes.fr/hal-01206355 Global Information Infrastructure and Networking Symposium, Oct 2015, Guadalajara, Mexico. <http://www.giis-conf.org/> http://www.giis-conf.org/ARRAY(0x7f5b5721e388) 2015-10-28
Thèse: Dissémination de contenus populaires tolérants au délai dans les réseaux cellulaires
Soutenance: 2017-09-29
Rapporteurs: Yacine GHAMRI    Véronique VÈQUE