使用LoRa技术为多个设备提供低成本网关的设计
Wuigor I S Bine1, Linnyer B R Aylon2
1Electrical Engineering Department, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil.
Sensors (Basel, Switzerland)
|August 28, 2025
概括
一个新的双通道LoRaWAN网关通过减少数据碰撞来提高物联网 (IoT) 网络性能. 这种增强的效率提高了数据包的传输速度,使其非常适合拥挤的网络环境.
科学领域:
- 无线通信网络
- 物联网 (物联网)
- 无线电频率工程
背景情况:
- 低功耗广域网 (LPWAN) 面临着由于众多连接设备而导致的可扩展性和效率挑战.
- 在LoRaWAN网络中普遍存在的ALOHA协议有助于数据碰撞并限制频谱利用.
- 现有的单通道网关在存在网络和干扰的环境中难以实现性能.
研究的目的:
- 为物联网 (IoT) 应用设计和开发具有成本效益的双通道LoRaWAN网关.
- 调查频道活动检测 (CAD) 和动态频道分配以减少碰撞和频谱优化.
- 评估拟议的双通道网关在现实世界易受干扰的环境中的性能.
主要方法:
- 开发一个低成本的双通道LoRaWAN网关.
- 实现通道活动检测 (CAD) 和动态通道分配算法.
- 在存在无线网络和干扰的环境中进行实验测试.
主要成果:
- 双通道网关在SF7到SF12的扩散因子中实现了超过94%的数据包传输率.
- 与单通道网关相比,PDR和数据包损失的显著改善.
- 在相同条件下的单通道网关显示了80%至85%的PDR.
结论:
- 拟议的双通道LoRaWAN网关有效缓解碰撞并提高频谱利用率.
- 该网关表现出卓越的性能,特别是在具有挑战性的多个共存网络环境中.
- 这种解决方案对于需要可靠的数据传输的中小型物联网部署是可行的和有益的.
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