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A Novel and Effective QoS Guarantee Scheme in WiMAX System

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3 Author(s)
Lin Wu ; Beijing Univ. of Posts & Telecommun., Beijing, China ; Luyong Zhang ; Rui Wang

IEEE802.16 is a promising wireless broadband technology for the next generation last mile access. Though Quality of service (QoS) is guaranteed by the standard which defines five types of multimedia traffic classes, it doesn't define any specific admission control strategy and scheduling algorithm which are left to venders to design, and they have been becoming the research hotspot and many manufacturers, institutes and colleges begin to study QoS guarantee mechanism. A variety of admission control strategy and scheduling algorithm have been proposed and implemented at the MAC layer, but none of them is perfect. In this paper, we propose a novel admission control strategy based on resource reserved mechanism and design an effective and fair four-level scheduling architecture, which could provide predefined QoS for different service classes. Detailed simulation experiments are provided to validate fairness and effectiveness of proposed QoS guarantee strategy and results show it can achieve the desired effect.

Published in:

Measuring Technology and Mechatronics Automation (ICMTMA), 2010 International Conference on  (Volume:1 )

Date of Conference:

13-14 March 2010