基于事件驱动的动态分簇网络的协作传输方法

李敏; 熊灿; 肖扬

doi:10.11999/JEIT200707

基于事件驱动的动态分簇网络的协作传输方法

doi: 10.11999/JEIT200707

重庆邮电大学自动化学院重庆 400065

基金项目: 国家重点研发计划项目(2018YFB1702000)，国家自然科学基金(61701065)，重庆市自然科学基金(cstc2019jcyj-msxmX0444)

详细信息

作者简介:
李敏：女，1979年生，副教授，研究方向为无线通信、无线传感器网络、协作通信等

熊灿：男，1994年生，硕士生，研究方向为协作通信

肖扬：男，1994年生，硕士生，研究方向为协作通信

通讯作者:
李敏　limin@cqupt.edu.cn

中图分类号: TN925
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- 被引次数: 0
出版历程
- 收稿日期: 2020-08-10
- 修回日期: 2020-12-18
- 网络出版日期: 2021-02-24
- 刊出日期: 2021-08-10

An Event-driven Cooperative Transmission Scheme for Dynamic Clustering Networks

Department of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Funds: The National Key R&D Program of China (2018YFB1702000), The National Natural Science Foundation of China (61701065), The Natural Science Foundation of Chongqing (cstc2019jcyj-msxmX0444)

摘要

摘要: 针对事件驱动的无线传感器网络的传输可靠性问题，该文利用节点间的互助，提出一种基于事件驱动的动态分簇网络的协作传输方法。无事件发生时，各节点按预先形成的静态簇低频传输数据。而一旦有事件发生，能感知事件发生的节点快速组成事件簇，向簇头发送采集的数据，簇头融合数据后发往汇聚节点。为提升传输可靠性，当簇头传输失败时，由最佳中继协作转发数据给汇聚节点。在最佳中继的选择上，考虑到事件的连续移动，以及处于事件前向通道上的节点具有较大的感应值和较好的协作能力等条件，该文提出了基于前向通道的最佳中继选择策略。仿真和实验结果表明，所提协作传输方法能够有效提高传输可靠性。
- 分簇网络 /
- 事件驱动 /
- 协作传输 /
- 动态事件簇 /
- 可靠性
Abstract: In order to enhance the transmission reliability of event-driven wireless sensor networks, a cooperative transmission scheme for event-driven dynamic clustering network is proposed by utilizing collaboration between nodes. When no event occurs, each node transmits data to its cluster head at a very low frequency in pre-formed static cluster. Once an event occurs, the nodes that perceive the occurrence quickly form an event cluster and send data to the cluster head. The cluster head fuses the data and reports it to the sink node. The cluster head fuses the data and sends it to the sink node. If the cluster head fails to transmit, the best relay cooperates with it for forwarding data to improve the transmission reliability. In the best relay selection, considering the continuous movement of events, the nodes on the forward channel of events have strong induction intensity and good cooperation ability. Therefore, a best relay selection strategy based on the forward channel is developed. Simulation and experimental results show that the proposed scheme can effectively improve the transmission reliability.
- Clustering networks /
- Event-driven /
- Cooperative transmission /
- Dynamic event cluster /
- Reliability

HTML全文

图 1 系统模型

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图 2 网络的通信流程图

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图 3 事件参数计算图

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图 4 事件簇的形成中子时隙的划分和通信流程图

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图 5 前向通道示意图

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图 6 不同信噪比下各方法的数据包传输率比较

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图 7 不同节点数量下各方法的数据包传输率比较

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图 8 本文方法在不同事件大小和不同速度大小下的前向通道节点总数比较

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图 9 不同方法在不同事件大小和不同事件速度下的数据包传输率

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图 10 实验场景布局图

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表 1 测试结果

方法	成功接收到的数据包个数			数据包传输率PDR(%)			平均数据包传输率(%)
方法	第1组	第2组	第3组	第1组	第2组	第3组	平均数据包传输率(%)
RETP方法	7871	7989	7885	78.71	79.89	78.85	79.15
EEAOC方法	6703	6966	7288	67.03	69.66	72.88	69.86
本文方法	9208	8851	9130	92.08	88.51	91.30	90.63

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