在模拟环境中,LoRaWAN对IEEE 802.11ah的影响
Mateo Tito-Lara1, Mauricio Domínguez-Limaico1, Edgar Maya-Olalla1
1Facultad de Ingeniería en Ciencias Aplicadas, Universidad Técnica del Norte, Av. 17 de Julio 5-21 y General José María Córdova, Ibarra 100105, Ecuador.
Sensors (Basel, Switzerland)
|November 27, 2025
概括
在密集的物联网网络中,LoRaWAN干扰显著降低IEEE 802.11ah性能. 吞吐量下降了31%,包损失增加了79%,较高的LoRa负载.
科学领域:
- 无线通信网络是无线通信网络.
- 物联网 (IoT) 的物联网 (IoT) 的物联网.
- 无线电频率频谱管理
背景情况:
- 低于GHz的未经许可的频段对物联网至关重要,但像LoRaWAN和IEEE 802.11ah这样的技术的光谱共存带来了挑战.
- 密集的物联网部署加剧干扰问题,影响网络可靠性和性能.
研究的目的:
- 在统一的模拟环境中分析LoRaWAN干扰对IEEE 802.11ah的性能影响.
- 量化不同节点密度和LoRa负载对关键性能指标的影响.
- 为了在干扰条件下建立一个SINR门,用于数据包丢失.
主要方法:
- 利用一个NS-3模拟环境来建模和分析LoRaWAN和IEEE 802.11ah的共存.
- 在统一的框架内整合了这两种技术,配置了PHY/MAC参数和频段 (US902-928 MHz ISM频段).
- 评估的性能指标包括吞吐量,数据包丢失百分比 (PPP) 和SINR在不同的网络密度和有效载荷大小下.
主要成果:
- 由于LoRa节点密度从10增加到8000,IEEE 802.11ah的吞吐量减少了多达31%.
- 在高LoRa干扰下,IEEE 802.11ah的数据包丢失百分比 (PPP) 增加了高达79%.
- 一个SINR值被确定为决定由于干扰导致的数据包丢失的关键因素.
结论:
- 在密集的物联网网络中,LoRaWAN干扰显著降低IEEE 802.11ah性能.
- 该研究提供了一种可重复的方法来评估在未经许可的次GHz频段中协议间的共存.
- 量化证据支持在共享频谱环境中运行的多协议物联网网络的设计和分析.
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