通信学报 ›› 2015, Vol. 36 ›› Issue (8): 171-181.doi: 10.11959/j.issn.1000-436x.2015149

• 学术通信 • 上一篇    下一篇

基于强化学习的IEEE 802.15.4网络区分服务策略

钱亮,钱志鸿,李天平,全薇   

  1. 吉林大学 通信工程学院,吉林 长春 130012
  • 出版日期:2015-08-25 发布日期:2015-08-25
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目

IEEE 802.15.4 differentiated service strategy based on reinforcement-learning

Liang QIAN,Zhi-hong QIAN,Tian-ping LI,Wei QUAN   

  1. College of Communication Engineering,Jilin University,Changchun 130012,China
  • Online:2015-08-25 Published:2015-08-25
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China

摘要:

为了弥补IEEE 802.15.4协议原有区分服务机制的不足,提出了一种基于BCS(backoff counter scheme)与强化学习的区分服务策略。从终端节点出发,在原优先级区分服务策略的基础上增加 BCS 退避策略以解决流量较大场合业务区分问题;针对协调器节点,提出了基于强化学习的占空比调整策略,该策略能根据不同应用需求和环境变化自适应调整占空比。仿真结果表明,提出算法能针对不同环境满足高优先级业务性能需求,并能根据流量变化进行占空比调整,具有极强环境适应性。

关键词: IEEE802.15.4/LR-WPAN, 区分服务, 退避机制, 强化学习, 占空比

Abstract:

To provide better support in differentiated service for IEEE 802.15.4,a novel differentiated service mechanism was proposed based on BCS(back off counter scheme)and reinforcement learning.In terms of end-device,BCS backoff strategy was added to original priority-based differentiated strategy to solve the service differentiation problem under higher traffic condition.Whil “ e for the coordinator,a reinforcement learning based duty-cycle adjustment algorithm was proposed toself-learning”an optimal duty-cycle according to different application requirements and environmental changes.Simulation shows that the proposed algorithm can meet the performance requirements of high-priority service under different environments and adjust the duty-cycle when traffic is changed,which showed a strong environmental adaptability.

Key words: IEEE 802.15.4/LR-WPAN, differentiated-service, BCS, reinforcement-learning, duty-cycle

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