A QoS Guaranteed Packet Scheduling Algorithm for OFDMA Systems

Peichao Zheng; Shao-jun Jia; Hantao Song

doi:10.3724/sp.j.1146.2007.01493

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JOURNAL ARTICLE

A QoS Guaranteed Packet Scheduling Algorithm for OFDMA Systems

Peichao Zheng Shao-jun Jia Hantao Song

Year: 2011 Journal: JOURNAL OF ELECTRONICS INFORMATION TECHNOLOGY Vol: 30 (8)Pages: 1779-1782 Publisher: Chinese Academy of Sciences, Institute of Electronics

DOI: 10.3724/sp.j.1146.2007.01493

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Abstract

在正交频分多址接入系统中采用正比公平算法可以兼顾吞吐量和公平性，有效地提高系统性能。结合正比公平算法，该文提出一种应用于正交频分多址接入系统保证服务质量的分组调度算法。为防止需求速率高但瞬时信道状况差的用户分配过多的子载波，算法使用了动态变化的权重因子。在一次调度过程中，剩余子载波的权重因子可以随着子载波的分配而更新。仿真结果证明，在满足实时业务服务质量的前提下，该算法比正比公平算法具有更好的公平性。

Keywords:

Computer science Quality of service Computer network Scheduling (production processes) Network packet Algorithm Real-time computing Distributed computing Mathematical optimization Mathematics

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Advanced Wireless Network Optimization

Physical Sciences → Engineering → Electrical and Electronic Engineering

Cooperative Communication and Network Coding

Physical Sciences → Computer Science → Computer Networks and Communications

Wireless Communication Networks Research

Physical Sciences → Computer Science → Computer Networks and Communications

A QoS Guaranteed Packet Scheduling Algorithm for OFDMA Systems

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