IEEE802.16系统的QoS分组调度算法

Packet Scheduling Algorithm Design and Performance Analysis for QoS Support in IEEE802.16 Systems

文章基于IEEE 802.16宽带无线城域网接入标准中定义的QoS架构,对上行分组调度UPS进行了具体的设计,将其分为信息模块、调度数据库模块和服务分配模块三个部分。并且提出了一种基于严格优先级的调度服务原则,为不同类型的服务流提供QoS支持,分别给出了rtPS、nrtPS和BE三种服务的调度算法。文章最后通过具体仿真验证出所提出的策略能够为实时业务提供QoS支持。

Based on the QoS architecture defined in IEEE 802.16 broadband wireless access standards in metropolitan area networks,we design the uplink packet scheduling(UPS) in this paper and divide it into three modules: information module,scheduling database module and service assignment module.We also propose uplink packet scheduling using a combination of strict priority service discipline to provide QoS support to different traffic classes and give the scheduling algorithm of rtPS、nrtPS and BE service respectivel...