Cross-Layer Multiservice Scheduling for Mobile WiMAX Systems

Tara Ali Yahiya (1) , André-Luc Beylot (2, 3) , Guy Pujolle (1)

1 Phare
2 IRIT-RMESS - Réseaux, Mobiles, Embarqués, Sans fil, Satellites
3 Toulouse INP - Institut National Polytechnique (Toulouse)

We consider a cross-layer scheme for the downlink multiuser Orthogonal Frequency Division Multiple Access (OFDMA) for mobile WiMAX (Worldwide Interoperability for Microwave Access) based on IEEE802.16e. We propose an intelligent Medium Access Control (MAC) that adapts with physical layer in response to the different QoS requirements of the service flows in the system. Our scheme satisfies the maximum delay requirement for real-time service flows as well as minimum reserved data rate for non real-time service flows sessions while maintaining a high capacity of the whole system. We provide extensive simulation results showing the performance aspects of the proposed cross-layer scheme.

Mots clés: Scheduling; Quality of service; Physical layer; Downlink; Frequency conversion; Media Access Protocol; Intelligent control; Delay; Real time systems

Domaines: Informatique [cs]

Tara Ali Yahiya, André-Luc Beylot, Guy Pujolle. Cross-Layer Multiservice Scheduling for Mobile WiMAX Systems. 2008 IEEE Wireless Communications and Networking Conference, IEEE, Mar 2008, Las Vegas, Nevada, United States. pp.1531-1535, ⟨10.1109/WCNC.2008.274⟩. ⟨hal-01303590⟩