北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2015, Vol. 38 ›› Issue (s1): 15-19.doi: 10.13190/j.jbupt.2015.s1.004

• 论文 • 上一篇    下一篇

一种认知无线电的智能电网通信业务数据分组调度机制

徐思雅1, 张国翊2, 郭少勇1, 邱雪松1, 孟洛明1   

  1. 1. 北京邮电大学 网络与交换技术国家重点实验室, 北京 100876;
    2. 中国南方电网有限责任公司 电力调度控制中心通信处, 广州 510623
  • 收稿日期:2014-08-27 出版日期:2015-06-28 发布日期:2015-06-28
  • 作者简介:徐思雅(1988—), 女, 博士生, E-mail: xusiyaxsy@hotmail.com; 孟洛明(1955—), 男, 教授, 博士生导师.
  • 基金资助:

    国家高技术研究发展计划(863计划)项目(2012AA050801)

A Packet Scheduling Mechanism on Cognitive Radio Networks for Smart Grid

XU Si-ya1, ZHANG Guo-yi2, GUO Shao-yong1, QIU Xue-song1, MENG Luo-ming1   

  1. 1. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    2. Department of Communication Management, China Southern Power Grid Company Limited, Guangzhou 510623, China
  • Received:2014-08-27 Online:2015-06-28 Published:2015-06-28

摘要:

为了合理高效地利用现有无线频谱资源,保障智能电网中重要控制类信息传输质量的同时,尽可能地为其他业务提供相对高质量的服务,提出了一种智能电网认知无线传感器网络基于优先级的数据分组调度机制. 该机制基于差异化调度策略的思想,依据智能电力通信网流量的异构特性、业务特点和服务质量要求,为智能电力通信业务划分了优先级,进而对各个优先级设置了不同的策略,并重点考虑信道质量和信道切换造成的影响. 通过Matlab软件仿真验证,基于业务优先级的数据分组调度方案有效地提高了较高优先级次级用户数据分组的传输性能,对整个系统的利用率也有所提升.

关键词: 智能电网, 认知无线传感器网络, 服务质量, 调度机制

Abstract:

To achieve rational and efficient usage of radio spectrum, a priority-based packet scheduling mechanism on cognitive radio sensor networks for smart grid was presented. It provides higher priority secondary user packets with relatively high quality of service (QoS) without interfering the transmission of important business for network control. Based on differentiated scheduling method, communication traffic in smart grid was classified into several priority classes according to characteristics and QoS requirements of heterogeneous business. And then, a radio spectrum allocation strategy was formulated which considered the effect of channel quality and the cost of switch. Simulation was implemented to evaluate the mechanism by using Matlab. The simulation results show that the transmission quality of the higher-priority secondary users is improved by adopting the proposed priority-based packet scheduling mechanism and the overall system utilization is increased as well.

Key words: smart grid, cognitive radio sensor networks, quality of service, scheduling mechanism

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