基于LoRaWAN无线网络性能仿真研究  

Research on Performance Simulation of LoRaWAN Wireless Network

作　　者：温浩杰 解韵坤 李佳琪 谭梦 WEN Haojie;XIE Yunkun;LI Jiaqi;TAN Meng(Eastern Theater Command General Hospital,Nanjing 210000)

机构地区：[1]东部战区总医院,南京210000

出　　处：《舰船电子工程》2025年第2期99-103,共5页Ship Electronic Engineering

摘　　要：随着LoRaWAN网络逐渐大规模部署,更好地了解LoRaWAN并为网络部署提供参考就变得至关重要。为了分析LoRaWAN的容量、吞吐量和实际应用时的性能表现,论文使用了LoRa误差模型与NS-3模块中的LoRaWAN MAC协议相结合的方法,研究具有数千个终端设备的多信道,多扩频因子,多网关,双向LoRaWAN网络。使用LoRaWAN NS-3模块,模拟LoRaWAN在住宅楼里抄表分析显示LoRa信号具有良好的穿透性能,LoRaWAN的可扩展性分析显示了终端设备的增多明显影响网络吞吐量的增长和上下游数据包成功传输的比率,增加网关密度可以改善但不能消除这种影响,因为终端数量的增加造成网络拥挤和网络自身占空比限制抑制上下行数据传输,另外为终端设备分配合适的网络参数也很重要。As the LoRaWAN network is deployed on a large scale,it is crucial to better understand LoRaWAN and provide a reference for network deployment.In order to analyze the capacity,throughput and performance of LoRaWAN,this paper uses the LoRa error model combined with the LoRaWAN MAC protocol in the NS-3 module to study multi-channel and multi-expansion with thousands of terminal devices,frequency factor,multi-gateway,two-way LoRaWAN network.Using LoRaWAN NS-3 module,the meter reading of LoRaWAN in the building is simulated,which shows that LoRa signal has good penetration performance,can penetrate up to 10 floors,LoRaWAN scalability analysis shows that the increase of terminal equipment significantly affects network throughput and the ratio of successful transmission of upstream and downstream packets,increasing the density of the gateway can improve but not eliminate this effect,because the increase in the number of terminals causes network congestion and the network's own duty cycle limit to suppress uplink and downlink data transmission,network parameters are also important.

关 键 词：NS-3 LoRaWAN 吞吐量 PDR 

分 类 号：TN929.5[电子电信—通信与信息系统]