Adaptive Scheduling mechanism for IPTV over WiMAX IEEE 802.16j Networks - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Communication Systems Année : 2014

Adaptive Scheduling mechanism for IPTV over WiMAX IEEE 802.16j Networks

Résumé

A WiMAX technology is a very promising Broadband Wireless Access technology that is able to transmit different service types. This latter can have different constraints such as traffic rate, maximum latency, and tolerated jitter. The IEEE 802.16 Medium Access Control specifies five types of QoS classes: UGS, rtPS, ertPS, nrtPS, and BE. However, the IEEE 802.16 standard does not specify the scheduling algorithm to be used. Operators have the choice among many existing scheduling techniques. Also, they can propose their own scheduling algorithms. In this paper, we propose a scheduling strategy (AdaptiveWeighted Round Robin, AWRR) for various Internet Protocol Television (IPTV) services traffic over 802.16j networks. Our scheme adapts dynamically the scheduler operation to according queue load and quality of service constraints. In particular, the proposed mechanism gives more priority to high definition television and standard definition television traffic by using two schedulers. The proposed scheduling algorithm has been simulated using the QualNet network simulator. The experimental results show that our scheduler schemes AWRR have a better performance than the traditional scheduling techniques for rtPS traffic, which allows ensuring QoS requirements for IPTV application

Dates et versions

hal-01168369 , version 1 (25-06-2015)

Identifiants

Citer

Mohamed-El-Amine Brahmia, Abdelhafid Abouaissa, Pascal Lorenz. Adaptive Scheduling mechanism for IPTV over WiMAX IEEE 802.16j Networks . International Journal of Communication Systems, 2014, 27 (7), pp.1009-1019. ⟨10.1002/dac.2392⟩. ⟨hal-01168369⟩

Collections

SITE-ALSACE IRIMAS
35 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More