[1]许浩然,刘广钟.基于排队论的工业无线传感网超帧结构研究[J].计算机技术与发展,2019,29(01):6-10.[doi:10.3969/j.issn.1673-629X.2019.01.002]
　XU Hao-ran,LIU Guang-zhong.Research on Super-frame Structure of Industrial Wireless SensorNetwork Based on Queuing Theory[J].,2019,29(01):6-10.[doi:10.3969/j.issn.1673-629X.2019.01.002]
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基于排队论的工业无线传感网超帧结构研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
29
期数:
2019年01期
页码:
6-10
栏目:
智能、算法、系统工程
出版日期:
2019-01-10

文章信息/Info

Title:
Research on Super-frame Structure of Industrial Wireless SensorNetwork Based on Queuing Theory
文章编号:
1673-629X(2019)01-0006-05
作者:
许浩然;  刘广钟
上海海事大学 信息工程学院,上海,201306
Author(s):
XU Hao-ran; LIU Guang-zhong
School of Information Engineering,Shanghai Maritime University,Shanghai 201306,China
关键词:
工业无线传感器网络;  超帧;  排队论;  单队列;  数据延迟
Keywords:
ndustrial WSN; super-frame; queuing theory; single-queue; data latency
分类号:
TP391.9
DOI:
10.3969/j.issn.1673-629X.2019.01.002
文献标志码:
A
摘要:
随着无线传感器在工业场景中的大量应用,对于工业无线传感器网络的研究变得更加重要.针对目前工业无线传感器网络中数据传输采用的IEEE 802.15.4标准超帧结构在数据包排队方式的不足,为了满足工业应用场景中的实时性要求,更加精确地评估数据延迟与占空比等网络指标,提出一种优化排队方式的超帧结构.首先,利用排队论为IEEE 802.15.4标准超帧结构中的竞争访问控制阶段(CAP)与非竞争访问控制阶段(CFP)建立数学模型,更加合理地分析超帧数据延迟;然后,根据排队论的性能分析,提出一种单队列排队超帧结构,相对于原始超帧结构,单队列排队结构能有效降低数据包的传输延迟,提高网络利用率.仿真结果验证了延迟模型的合理性和优化超帧结构的正确性,能满足工业物联网应用中的实时性要求.
Abstract:
With the application of wireless sensor in industrial environment,the research on industrial wireless sensor network becomesmore important. Aiming at the deficiency of packet queuing mode of IEEE 802. 15. 4 standard super-frame structure in data transmissionin industrial wireless sensor network at present,in order to meet the real-time requirements in industrial application environment and accurately evaluate network indexes such as data delay and duty cycle,we propose an optimized queuing super-frame structure. Firstly,thequeuing theory is used to establish a mathematical model for the contention access period (CAP) and the contention-free period (CFP)in the IEEE 802. 15. 4 standard super-frame structure and analyze the super-frame data delay more reasonably. Then,according to theperformance analysis of queuing theory,a single-queue queueing super-frame structure is proposed. Compared with the original superframe structure,the single-queue queuing structure can effectively reduce the transmission delay of packet and improve the network utilization rate. The simulation results verify the rationality of the latency model and the correctness of the optimized super-frame structure,which can meet the real-time requirements in the application of industrial IoT.

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[1]李浩宇,王洪超,杨 冬,等.基于 Web 的工业无线传感器网络图路由时隙调度[J].计算机技术与发展,2017,27(12):133.[doi:10.3969/ j. issn.1673-629X.2017.12.029]
　LI Hao-yu,WANG Hong-chao,YANG Dong,et al.Graph Routing and Slot Scheduling of Industrial Wireless Sensor Network Based on Web[J].,2017,27(01):133.[doi:10.3969/ j. issn.1673-629X.2017.12.029]

更新日期/Last Update: 2019-01-10