| 周创,王红林.基于超宽带集中管控机制的物联网数据传输算法[J].井冈山大学自然版,2019,40(1):57-62 |
| 基于超宽带集中管控机制的物联网数据传输算法 |
| DATA TRANSMISSION ALGORITHM OF INTERNET OF THINGS BASED ON UWB CENTRALIZED CONTROL MECHANISM |
| 投稿时间：2018-09-29 修订日期：2018-11-25 |
| DOI：10.3969/j.issn.1674-8085.2019.01.012 |
| 中文关键词: 物联网 数据传输 能量冗余 次区域组网 分割节点 链路抖动 |
| 英文关键词: internet of things data transmission energy redundancy sub area networking segmented nodes link jitter |
| 基金项目:安徽省高等学校自然科学研究重点项目（KJ2017A780）；安徽省高等学校省级质量工程项目（2016ckjh052）；安徽省教育基本建设学会科研课题（1612-9） |
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| 中文摘要: |
| 针对当前物联网数据传输算法存在链路稳定性差、传输性能不高等不足，提出了一种基于超宽带集中管控机制的物联网数据传输算法（Data Transmission algorithm of IOT based on UWB centralized control mechanism，UWB-CC算法）。首先，通过能量冗余机制对网络节点进行初次筛选，并采用能量最优原则进行区域划分，实现物联网数据的分区传输及性能维护；随后，考虑到传统算法难以实现区域节点更新的不足，通过节点能力阈值筛选方法，实现对区域节点-普通物联网节点的次区域组网，提高普通物联网节点的数据上传能力，降低分割节点（Partition Node，PN节点）因故障而导致区域上传瘫痪的概率；最后，采取综合评估分割节点性能与区域传输性能的方式，对中继传输节点进行优选，从而提高链路传输能力，减少链路抖动对传输性能的不利影响，能够同时实现带宽管控及区域分割-固定-链路稳定的一体化集中管控。仿真实验表明：与当前常用的区域流量汇聚上传算法（Upload algorithm for regional traffic aggregation，RTA算法）及成型度汇聚分割传输算法（Segmentation andtransmission algorithm based on degree of convergence，STDC算法）相比，本文算法具备更高的汇聚带宽与信道容量，以及更低的传输抖动率。 |
| 英文摘要: |
| In order to overcome the shortcomings of current data transmission algorithms in the Internet of Things (IOT) such as difficult region segmentation, difficult node selection, poor link stability and transmission performance, a data transmission algorithm of IOT based on UWB centralized control mechanism (UWB-CC) is proposed. Firstly, network nodes are screened for the first time by energy redundancy mechanism, and the region is divided according to the principle of energy optimum to realize the partitioned transmission and performance maintenance of the data in the Internet of Things. Then, considering the shortcomings of the traditional algorithm which is difficult to update the regional nodes, the regional nodes are filtered by the method of node capacity threshold. Subarea networking of point-to-ordinary IOT nodes improves the data upload capability of ordinary IOT nodes, and reduces the probability of regional upload paralysis caused by fault of partition Node (PN nodes); finally, relay transmission nodes are evaluated by comprehensive evaluation of partition node performance and regional transmission performance. Optimally, the link jitter problem and the link transmission capacity are improved, and the adverse effects of link fluctuation on transmission performance are reduced. Simulation results show that this algorithm has more convergence bandwidth, higher channel capacity and lower transmission jitter ratecompared with the current commonly used regional traffic aggregation (RTA) algorithm and shaping degree aggregation and transmission algorithm based on degree of convergence (STDC) algorithm. |
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