Research Article
On the effects of channel error compensation on the WF2Q+ scheduling performance in IEEE 802.16/WiMAX networks
@INPROCEEDINGS{10.1145/1577222.1577273, author={Sara Pizzi and Antonella Molinaro and Antonio Iera}, title={On the effects of channel error compensation on the WF2Q+ scheduling performance in IEEE 802.16/WiMAX networks}, proceedings={4th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness}, publisher={ACM}, proceedings_a={QSHINE}, year={2007}, month={8}, keywords={WiMAX scheduling fair queuing QoS fairness}, doi={10.1145/1577222.1577273} }- Sara Pizzi
Antonella Molinaro
Antonio Iera
Year: 2007
On the effects of channel error compensation on the WF2Q+ scheduling performance in IEEE 802.16/WiMAX networks
QSHINE
ACM
DOI: 10.1145/1577222.1577273
Abstract
The IEEE 802.16 standard has been promoted by the WiMAX (Worldwide Interoperability for Microwave Access) forum as a leading wireless broadband access technology. The packet scheduling mechanism represents the core of WiMAX QoS architecture; however, each vendor needs to design its own algorithm to offer effective quality provisioning to the end user. This paper reports on the design and analysis of a channel-aware WF2Q+ based scheduling algorithm for downlink traffic delivery in a point-to-multipoint WiMAX network. A technique for compensation of channel errors is proposed to preserve QoS and fairness of the scheduling algorithm when working under nonideal channel conditions. Simulation analysis confirms the effectiveness of the compensation mechanism under different channel conditions, network load, and traffic characteristics.