[1]史俊财,胡爱群.基于混合业务QoS保证的WiMAX系统调度算法[J].东南大学学报(自然科学版),2008,38(3):365-370.[doi:10.3969/j.issn.1001-0505.2008.03.001]
 Shi Juncai,Hu Aiqun.Quality of service-based scheduling algorithm for heterogeneous services in WiMAX systems[J].Journal of Southeast University (Natural Science Edition),2008,38(3):365-370.[doi:10.3969/j.issn.1001-0505.2008.03.001]
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基于混合业务QoS保证的WiMAX系统调度算法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第3期
页码:
365-370
栏目:
计算机科学与工程
出版日期:
2008-05-20

文章信息/Info

Title:
Quality of service-based scheduling algorithm for heterogeneous services in WiMAX systems
作者:
史俊财 胡爱群
东南大学信息科学与工程学院, 南京 210096
Author(s):
Shi Juncai Hu Aiqun
School of Information Science and Engineering, Southeast University, Nanjing 210096, China
关键词:
WiMAX 调度算法 QoS 混合业务
Keywords:
WiMAX scheduling algorithm QoS heterogeneous services
分类号:
TP393
DOI:
10.3969/j.issn.1001-0505.2008.03.001
摘要:
针对WiMAX系统特点,提出了一种基于自适应权重的公平调度(AWFS)算法及其简化算法S-AWFS以保证WiMAX系统中混合业务的QoS.算法为每个业务设置一个随信道条件和排队情况而动态变化的带宽分配权值以保证各业务的QoS和系统吞吐量的最大化.简化算法S-AWFS考虑到实用性,对算法的运算量进行了简化.仿真结果表明,AWFS算法及其简化算法能够保证非实时业务的最小传输速率要求以及实时业务的最大时延和最小传输速率要求.S-AWFS算法在降低计算复杂度的同时,获得与AWFS算法相当的性能,满足了WiMAX系统对资源调度算法的要求.
Abstract:
Adaptive weight-based fair scheduling(AWFS)algorithm which can ensure the heterogeneous services’ quality of service(QoS)requirements in the WiMAX system is proposed. For every service, AWFS algorithm set a weight factor for bandwidth allocation, which is the function of channel condition and queue’s length, to ensure all kinds of services’ QoS requirements and maximize system performance. S-AWFS(simplified AWFS)algorithm is introduced to decrease the computing complexity. The simulation results show that AWFS algorithm and S-AWFS algorithm can guarantee non-real-time services’ minimum rate and real-time services’ maximum delay and minimum rate. Furthermore, S-AWFS algorithm obtains almost the same performance, whereas its computing complexity decreases. So S-AWFS algorithm meets the requirements of scheduling algorithm for WiMAX system.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 史俊财(1978—),男,博士生; 胡爱群(联系人),男,博士,教授,博士生导师,aqhu@seu.edu.cn.
基金项目: 国家高技术研究发展计划(863计划)资助项目(2006AA01Z268).
引文格式: 史俊财,胡爱群.基于混合业务QoS保证的WiMAX系统调度算法[J].东南大学学报:自然科学版,2008,38(3):365-370.
更新日期/Last Update: 2008-05-20