NDLI: A new approach for a quality of service management in umts networks

Content Provider	Springer Nature Link
Author	Frikha, Mounir Bahria el Asghar, Nihed Kolsi, Ahmed
Copyright Year	2007
Abstract	L’expansion rapide des applications et des services dans les réseaux mobiles de 3$^{e}$ génération (3G) et l’augmentation de la concurrence entre les opérateurs a fait accroître le besoin d’améliorer la qualité de service (QoS) aussi bien pour les utilisateurs que pour les fournisseurs de services. L’objectif fondamental pour les opérateurs de réseau umts consiste à offrir à leurs usagers la meilleure QoS tout en garantissant une rentabilité maximale. Nous nous intéressons ici à fournir une approche visant d’atteindre cet objectif. Pour ce faire, nous nous sommes basés sur la gestion des paramètres réseaux, et bien particulièrement le débit. Notre objectif est d’offrir la plus bonne répartition de débit entre les utilisateurs (bit-rate balancing), tout en garantissant un équilibre de charge entre les différentes cellules (load balancing). Pour l’atteindre, nous nous sommes servis des notions d’ingénierie réseau et radio. Nous avons utilisé l’algorithme génétique pour l’optimisation de l’allocation des débits et nous avons proposé un nouveau processus d’équilibrage de débit et de charge.La différenciation des services a été effectuée par la définition d’une priorité selon les exigences des services en QoS.Afin de montrer la contribution de cette approche dans la pratique, nous l’avons simulé sur une plateforme de test d’un opérateur tunisien. Les résultats obtenus ont montré une augmentation du nombre d’utilisateurs connectés, des taux de blocage et de coupure très faibles et un meilleur équilibrage de charge (load balancing) entre les cellules.The fast expansion of the applications and services in the 3G mobile networks and the competition between the operators have increased the need to improve the QoS either for the subscribers or for the service providers. The umts operators’ principal goal is to guarantee their maximal benefit and offer the best QoS to the subscribers. Our work is funded on the optimisation of the network parameters, especially bit-rate.Our proposal’s goal is to offer the best rate distribution between the subscribers (bit-rate balancing) and to guarantee the load balancing between the network cells. It is based on network and radio engineering concepts. We used the genetic algorithm for the optimisation of the bit-rate allocation and we proposed a new process for the bit-rate and load balancing.The differentiation of the services treatment has been done by the definition of a priority based on each service requirements in QoS.To show the contribution of this approach in the practice, we simulated it on a Tunisian operator’s test platform model. The gotten results showed an increase of the connected users, some very weak blocking and call-drop rates and a better load balancing between the cells.
Starting Page	1013
Ending Page	1034
Page Count	22
File Format	PDF
ISSN	00034347
Journal	Annales Des Télécommunications
Volume Number	62
Issue Number	9-10
e-ISSN	19589395
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-01-01
Publisher Place	Milan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	umts Quality of Service Quality management Optimization Genetic algorithm Balancing Modeling Simulation Communications Engineering, Networks Information Systems and Communication Service Signal, Image and Speech Processing Computer Communication Networks Information and Communication, Circuits R & D/Technology Policy
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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