Title :
Integrated CAC and scheduling cross-layer algorithms in WiMAX networks with dynamic polling management
Author :
Teixeira, M.A. ; Guardieiro, Paulo Roberto
Author_Institution :
Fed. Inst. of Educ., Sci. & Technol. of Sao Paulo, Catanduva, Brazil
Abstract :
In this paper a new cross-layer connection admission control (CAC) algorithm in WiMAX networks is proposed. The CAC algorithm makes the decisions whether accept or not the new connections based on the quality of channel communications. Moreover, the proposed CAC works together with an uplink scheduling mechanism which allocates the network resources in accordance with the information about the quality of channel communication. This proposed algorithm interacts with the polling mechanism, and controls the interval of unicast polling for the rtPS and nrtPS service classes. Its evaluation, by means of modeling and simulation, showed satisfactory results.
Keywords :
WiMax; scheduling; telecommunication congestion control; telecommunication services; wireless channels; WiMAX networks; channel communication quality; cross-layer algorithms scheduling; cross-layer connection admission control algorithm; decision making; dynamic polling management; integrated CAC algorithm; network resources; nrtPS service classes; rtPS service classes; unicast polling; uplink scheduling mechanism; Bandwidth; Delay; IEEE 802.16 Standards; Quality of service; Real-time systems; Unicast; Uplink; IEEE 802.16; Quality of Service; Scheduling; WiMAX;
Conference_Titel :
Globecom Workshops (GC Wkshps), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-4942-0
Electronic_ISBN :
978-1-4673-4940-6
DOI :
10.1109/GLOCOMW.2012.6477558
