Scheduling algorithm for QoS enhancement in Ultra-Wide Band（UWB） wireless networks

doi:10.3778/j.issn.1002-8331.2009.08.038

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (8): 125-128.DOI: 10.3778/j.issn.1002-8331.2009.08.038

• 网络、通信、安全 • Previous Articles Next Articles

Scheduling algorithm for QoS enhancement in Ultra-Wide Band（UWB） wireless networks

ZHANG Ying,WANG Hong-jiang,WEI Gang

School of Electronic and Information Engineering，South China University of Technology，Guangzhou 510640，China

Received:2008-01-28 Revised:2008-04-11 Online:2009-03-11 Published:2009-03-11
Contact: ZHANG Ying

增强超宽带无线网络QoS的调度算法

张盈,王洪江,韦岗

华南理工大学电子与信息学院，广州 510640

通讯作者: 张盈

Abstract

Abstract: Based on distributed UWB networks specified by ECMA-368 protocol，an advanced scheduling algorithm is proposed to efficiently enhance traffic QoS in the paper.The scheduling algorithm runs in MAC layer without a central scheduler.It uses a borrowing-lending scheme to achieve dynamic band width allocation for variation of wireless channel status and traffic transmission status.Simulation results show that the scheduling algorithm can efficiently enhance the traffic QoS and improve the performance of the whole network.

Key words: Ultra-Wide Band（UWB）, scheduling, Quality of Service（QoS）, band width allocation

摘要： 基于对UWB网络中已有调度算法性能的分析，提出了一种用于增强UWB无线网络QoS的调度算法。该算法采用跨层设计的思想，能根据无线物理层信道状态和应用层业务传输速率的变化进行动态带宽分配，分配过程主要采用带宽借贷的思想，即在具有不同优先级的业务流之间进行带宽调度，以尽最大可能满足具有不同优先级的业务流QoS要求。仿真结果表明，该算法能有效地增强网络的QoS，提高整个网络的性能。

关键词: 超宽带, 调度, 服务质量, 带宽分配

ZHANG Ying,WANG Hong-jiang,WEI Gang. Scheduling algorithm for QoS enhancement in Ultra-Wide Band（UWB） wireless networks[J]. Computer Engineering and Applications, 2009, 45(8): 125-128.

张盈,王洪江,韦岗. 增强超宽带无线网络QoS的调度算法[J]. 计算机工程与应用, 2009, 45(8): 125-128.

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Scheduling algorithm for QoS enhancement in Ultra-Wide Band（UWB） wireless networks

增强超宽带无线网络QoS的调度算法

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