吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (1): 284-289.doi: 10.13229/j.cnki.jdxbgxb201601043

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蓝牙微微网内多优先级业务动态带宽分配算法

钱志鸿, 周策, 程超, 厉茜   

  1. 吉林大学 通信工程学院,长春 130012
  • 收稿日期:2014-10-09 出版日期:2016-01-30 发布日期:2016-01-30
  • 作者简介:钱志鸿(1957-),男,教授,博士生导师.研究方向:无线网络技术.E-mail:dr.qzh@163.com
  • 基金资助:
    国家自然科学基金项目(61371092,61071073)

Dynamic bandwidth allocation algorithm for multi-priority business of Bluetooth piconet

QIAN Zhi-hong, ZHOU Ce, CHENG Chao, LI Qian   

  1. College of Communication Engineering, Jilin University, Changchun 130012, China
  • Received:2014-10-09 Online:2016-01-30 Published:2016-01-30

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摘要： 针对蓝牙网内存在多种类型业务的调度问题,提出了一种蓝牙微微网内多优先级业务动态带宽分配(Multi-priority bandwidth allocation,MPBA)算法。MPBA算法通过估计高优先级链路的数据到达速率和所选择发送分组的类型推导出每条链路的最佳轮询间隔,通过比较每条高优先级链路的时隙计数器是否达到自身的最佳轮询间隔决定是否调度该链路。仿真结果表明,MPBA算法能够很好地保证高优先级业务的带宽需求,而且有较高的信道资源利用率和较低的调度时延。

关键词: 通信技术, 蓝牙微微网, 调度, 多优先级, 实时业务

Abstract: To solve the scheduling problem of various businesses existing in Bluetooth Piconet, a dynamic bandwidth allocation algorithm for multi-priority business of Bluetooth Piconet was presented, namely MPBA scheduling algorithm. In MPBA, the optimal polling interval can be derived by estimating data arrival rate and packet type for each link with high priority. By comparing the value of the optimal polling interval and the slot counter of a link MPBA decides whether to schedule this link. Simulation results indicate that the MPBA scheduling algorithm can provide better bandwidth requirement for high priority links with higher bandwidth utilization and lower scheduling delay than existing algorisms.

Key words: communication, bluetooth piconet, scheduling, multipriority, realtime business

中图分类号: 

  • TN92
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