计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (36): 134-136.DOI: 10.3778/j.issn.1002-8331.2008.36.037

• 网络、通信、安全 • 上一篇    下一篇

WiMAX的调度算法研究

张 明,王锁萍,何 涛   

  1. 南京邮电大学 软件学院,南京 210003
  • 收稿日期:2008-06-04 修回日期:2008-09-08 出版日期:2008-12-21 发布日期:2008-12-21
  • 通讯作者: 张 明

Study on scheduling algorithm in WiMAX

ZHANG Ming,WANG Suo-ping,HE Tao   

  1. Software School,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
  • Received:2008-06-04 Revised:2008-09-08 Online:2008-12-21 Published:2008-12-21
  • Contact: ZHANG Ming

摘要: WiMAX作为一种宽带无线城域网接入技术,能够支持多种类型的业务传输。为了保证不同业务的服务质量(QoS),有效的调度算法是其中的一个关键。提出了一种分级的调度算法,并且将上行调度和下行调度联合设计,根据上下行流量自适应调整上下子帧的比例,满足业务QoS要求的同时,充分考虑调度的公平性。仿真结果表明建议算法是一种有效方法。

Abstract: WiMAX can support heterogeneous services as one of broadband wireless metropolitan area network access technologies.To guarantee the QoS requirements of these service flows,efficient scheduling algorithm plays a key role.A hierarchical scheduling algorithm is proposed,which designs the uplink and down scheduling jointly.It can adaptively adjust uplink and downlink sub-frame according to their traffic,and can meet the QoS requirement.At the same time,the fairness is taken into account sufficiently.Simulation results show the proposed algorithm is efficient.