基于LoRa组网的多优先级时隙分配算法  

Multi-priority time slot allocation algorithm based on LoRa networking

作　　者：姚引娣 王磊 YAO Yin-di;WANG Lei(School of Communication and Information Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China)

机构地区：[1]西安邮电大学通信与信息工程学院,陕西西安710121

出　　处：《计算机工程与设计》2020年第3期639-644,共6页Computer Engineering and Design

基　　金：陕西省科技厅国际科技合作计划基金项目(2018KW-025);陕西省教育厅专项科学研究计划基金项目(18JK0700)。

摘　　要：为提高LoRa组网中数据传输的效率和稳定性,提出一种基于LoRa组网的多优先级时隙分配算法。将固定时隙分配算法和竞争时隙分配算法相结合,采用动态调整的方式根据网络容量动态调整时隙的分配策略,平衡节点优先级的权重,提高网络传输的效率和稳定性。实验结果表明,该分配算法优化了固定时隙分配算法和竞争时隙分配算法的不足,提高了LoRa自组网中数据传输的效率和稳定性,降低了数据传输过程中的平均时延。To improve the efficiency and stability of data transmission in the LoRa network,a multi-priority time slot allocation algorithm based on LoRa networking was proposed.A fixed time slot allocation algorithm was combined with a competitive time slot allocation algorithm,the dynamic adjustment method was adopted to dynamically adjust the allocation strategy of the time slot according to the network capacity,balancing the weight of the node priority,thereby improving the transmission efficiency and stability of the network.The experimental results show that the allocation algorithm optimizes the shortcomings of the fixed time slot allocation algorithm and the competitive time slot allocation algorithm,improves the efficiency and stability of data transmission in the LoRa ad hoc network,and reduces the average delay in the data transmission process.

关 键 词：竞争时隙 LoRa组网 时分多址(TDMA) 固定时隙 时隙分配 

分 类 号：TN911[电子电信—通信与信息系统]