论文标题
可靠的上行链路传输模型
A Model for Reliable Uplink Transmissions in LoRaWAN
论文作者
论文摘要
远距离广泛区域网络（Lorawan）技术提供了一个简单的解决方案，可以在各种应用程序中为低功率互联网（IoT）网络启用低成本服务。当前对Lorawan网络的评估依赖于模拟或早期测试，这些模拟通常耗时，并防止对设计空间有效探索。本文提出了一个分析模型，以计算A类可靠的上行链路（UL）数据传递所消耗的延迟和能量。使用基于NS-3 Lorawan模块的真实网络测试床以及模拟实验评估分析模型。最终的比较证实了该模型可以准确估计在考虑的环境中消耗的延迟和能量。该模型的价值通过其应用来证明，以评估终端设备数量的影响以及数据框架重新启动的最大数量对洛杉矶网络中确认的UL数据传递所消耗的延迟和能量的最大数量。该模型可用于优化未来Lorawan网络中的不同传输参数。
Long range wide area networks (LoRaWAN) technology provides a simple solution to enable low-cost services for low power internet-of-things (IoT) networks in various applications. The current evaluation of LoRaWAN networks relies on simulations or early testing, which are typically time consuming and prevent effective exploration of the design space. This paper proposes an analytical model to calculate the delay and energy consumed for reliable Uplink (UL) data delivery in Class A LoRaWAN. The analytical model is evaluated using a real network test-bed as well as simulation experiments based on the ns-3 LoRaWAN module. The resulting comparison confirms that the model accurately estimates the delay and energy consumed in the considered environment. The value of the model is demonstrated via its application to evaluate the impact of the number of end-devices and the maximum number of data frame retransmissions on delay and energy consumed for the confirmed UL data delivery in LoRaWAN networks. The model can be used to optimize different transmission parameters in future LoRaWAN networks.
