A Novel and Effective QoS Guarantee Scheme in WiMAX System
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 doesnt 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 predeflned 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.
WIMAX IEEE802.16 QoS MAC Admission control Scheduling algorithm
Wu Lin Zhang Luyong Wang Rui
Beijing University of Posts and Telecommunications, Beijing, 100876,China
国际会议
长沙
英文
208-213
2010-03-13（万方平台首次上网日期，不代表论文的发表时间）