北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (3): 75-78.doi: 10.13190/jbupt.200703.75.fanch

• 研究报告 • 上一篇    下一篇

一种在混合业务中保证流业务QoS的调度算法

范 晨,张 琳,杨大成   

  1. 北京邮电大学 无线通信中心, 北京 100876
  • 收稿日期:2006-06-20 修回日期:1900-01-01 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 范 晨

A Scheduling Algorithm for Guarantying QoS of Streaming Traffic over Mixed Services

FAN Chen, ZHANG Lin, YANG Da-cheng   

  1. Wireless Communication Center, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2006-06-20 Revised:1900-01-01 Online:2007-06-30 Published:2007-06-30
  • Contact: FAN Chen

摘要:

为保证混合业务中流业务的丢包率和中断率,提出了一种基于二维效用函数的调度算法. 仿真结果表明,提出的方法对于丢包率和中断率的服务质量保证能力,均优于修正的最大加权时延优先算法和指数正比公平算法等仅以排队时延为优化目标的混合业务调度算法.

关键词: 高速下行分组接入, 服务质量, 调度算法, 效用函数

Abstract:

A scheduling algorithm based on the two dimensional utility function is proposed to guarantee the packet drop ratio and play-out outage ratio of streaming application in the mixed service scenario. The simulation results show that guarantee capability for the drop and play-out outage ratio of the proposed scheme outperforms the modified-largest weighted delay first algorithm and exponent proportional fair algorithm, which only take the head-of-line delay into consideration.

Key words: high speed downlink packet access;quality of service, scheduling, the utility function

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