基于多优先级排队论的配电物联网带宽分配方法
摘要：针对数据量剧增的配电物联网中存在的带宽利用率低和业务数据服务质量（quality of service，QoS）难以满足通信需求等问题，提出一种多优先级排队论的带宽分配方法。首先，对感知终端到边缘物联网关的业务数据传输过程进行改进，改进后的传输过程可根据不同业务数据对QoS的不同要求进行数据优先级的划分，对不同优先级数据设置不同的服务机制；然后，对业务数据传输中的马尔科夫过程进行分析，基于改进后的数据传输过程建立以带宽利用率为目标，丢包率和延时时间为约束的多优先级排队论带宽分配模型；并将所提出的带宽分配方法与传统方法进行对比。结果表明：QoS指标有所改善，而且带宽利用率比传统不分优先级带宽分配方法高9.73%，比弹性系数法高31.17%。最后，探究多优先级排队论带宽分配方法的动态性能，结果表明适当地提高带宽可以改善QoS指标，但要注意带宽增大时所带来的带宽利用率减小问题。合理的带宽分配可以避免资源的浪费。
Abstract:Currently, due to the increasing data amount in the Internet of Things, it is challenging to meet the the requirements for quality of business data services and achieve high bandwidth utilization rate. To address this problem, a multi-priority queuing theory bandwidth allocation method is proposed. First, the business data transmission process from perception terminal to edge IoT was improved. The improved transmission process enables prioritization of data transmission according to the different requirements of various data, and facilitates the implementation of different service mechanisms for different priority levels. Then, the Markov process was analyzed during business data transmission. Based on the improved data transmission process, a multi-priority bandwidth allocation model with the packet loss rate and the delay time taken as constrains was developed to optimize bandwidth utilization . The multi-priority queuing theory bandwidth allocation method is compared with traditional methods, resulting in an improved QoS indicator and a 9.73% higher bandwidth utilization rate compared to traditional bandwidth allocation methods. Additionally, it achieved a 31.17% higher utilization rate than the elastic coefficient method. Finally, the dynamic performance of the multi-priority queuing theory bandwidth allocation method was also explored. The results indicate that the proper improvement of the bandwidth can improve the QoS indicator; however, it should be noted that increasing the bandwidth may lead to a reduction in its utilization rate. Therefore, reasonable bandwidth allocation can avoid waste of resources effectively.
标题：基于多优先级排队论的配电物联网带宽分配方法
英文标题：Bandwidth Allocation Method for Power Distribution Internet of Things Based on Multi-priority Queuing Theory
作者：宋祺鹏, 王继东, 王娜, 李浙, 李丽鹏, 刘懿莹,
关键词：配电物联网, 多优先级排队论, 数据传输过程, 带宽分配, 带宽利用率,
发表日期：2024-10-10
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