宽带OFDMA系统中支持不同QoS级别的分组数据调度算法

doi:10.13190/jbupt.200604.24.052

北京邮电大学学报 ›› 2006, Vol. 29 ›› Issue (4): 24-28.doi: 10.13190/jbupt.200604.24.052

宽带OFDMA系统中支持不同QoS级别的分组数据调度算法

陆彦辉, 尹长川, 乐光新

北京邮电大学电信工程学院, 北京 100876

收稿日期:2005-05-26 修回日期:1900-01-01 出版日期:2006-08-30 发布日期:2006-08-30
通讯作者: 陆彦辉

Downlink Scheduling Algorithm of OFDMA Wideband Wireless Access Systems with Efficient Support for QoS

LU Yan-hui, YIN Chang-chuan, YUE Guang-xin

School of Telecommunication Engineering ,Beijing University of Posts and Telecommunications, 100876, Beijing

Received:2005-05-26 Revised:1900-01-01 Online:2006-08-30 Published:2006-08-30
Contact: LU Yan-hui

摘要/Abstract

摘要：

提出了两个适用于多用户正交频分复用多址接入(OFDMA)系统的分组数据调度算法，分别是多载波正比公平(MPF)算法和增强容量的MPF算法。理论分析和数值结果表明：两种算法都能保证用户的不同业务质量(QoS)要求，并且实现用户数据的公平发送，但是与MPF相比，增强容量的MPF算法具有更大的灵活性和更高的系统吞吐量。

关键词: 正交频分复用多址接入, 宽带无线接入, 业务质量, 分组数据调度算法

Abstract:

Two downlink packet data scheduling algorithms applied to orthogonal frequency division multiple access（OFDMA） broadband wireless access systems are proposed, which are multi-carrier proportional fair (MPF) scheduler and MPF algorithm enhancing capacity. The results demonstrate that they both provide fairness for users with explicit quality of service（QoS） guarantees, but MPF algorithm enhancing capacity achieves higher system throughput compared with MPF scheduler with more flexible parameter setting.

Key words: orthogonal frequency division multiple access , broadband wireless access, quality of service, scheduling

中图分类号:

TN911

陆彦辉, 尹长川, 乐光新. 宽带OFDMA系统中支持不同QoS级别的分组数据调度算法[J]. 北京邮电大学学报, 2006, 29(4): 24-28.

LU Yan-hui, YIN Chang-chuan, YUE Guang-xin. Downlink Scheduling Algorithm of OFDMA Wideband Wireless Access Systems with Efficient Support for QoS[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2006, 29(4): 24-28.

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宽带OFDMA系统中支持不同QoS级别的分组数据调度算法

Downlink Scheduling Algorithm of OFDMA Wideband Wireless Access Systems with Efficient Support for QoS

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