当前位置: X-MOL 学术IEEE Access › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Assessing LoRa for satellite-to-Earth communications considering the impact of Ionospheric Scintillation
IEEE Access ( IF 3.4 ) Pub Date : 2020-01-01 , DOI: 10.1109/access.2020.3022433
Lara Fernandez , Joan Adria Ruiz-De-Azua , Anna Calveras , Adriano Camps

Since the appearance of 5G, Internet of Things (IoT) has gained an increased interest, with multiple technologies emerging and converging to cover different user needs. One of the biggest challenges today is to have global IoT coverage, ensuring seamless communication with IoT devices placed in rural and even remote areas. Satellite constellations, and in particular CubeSats orbiting in Low Earth Orbit, can provide a solution to these challenges. Out of the technologies available, LoRa (Long Range) has a great potential for implementation in space-to-Earth satellite communications. As the space-to-Earth channel is different with respect to the conventional Earth-to-Earth one, it is important to asses the capabilities of LoRa in this new environment. This paper presents a study of different LoRa device configurations to identify the constrains for each one and determine which one is better for particular mission requirements. Also, the effect of ionospheric scintillation is assessed with a SDR-based (Software-Defined Radio) test set-up that evaluates the performance of this technology against with Humprey’s ionospheric scintillation model. This phenomena produces deep signal intensity fadings and phase fluctuations in equatorial regions, and mainly phase fluctuations in high latitudes. The obtained metrics are the received power and the packet delivery ratio as a function of the intensity scintillation index, and show the robustness of the LoRa modulation in these new environments.

中文翻译:

考虑到电离层闪烁的影响,评估用于星对地通信的 LoRa

自5G出现以来,物联网(IoT)受到越来越多的关注,多种技术不断涌现并融合以覆盖不同的用户需求。当今最大的挑战之一是实现全球物联网覆盖,确保与农村甚至偏远地区的物联网设备进行无缝通信。卫星星座,特别是在低地球轨道上运行的立方体卫星,可以为这些挑战提供解决方案。在现有技术中,LoRa(远程)在空对地卫星通信中具有巨大的实施潜力。由于空对地信道不同于传统的地对地信道,因此评估 LoR​​a 在这种新环境中的能力非常重要。本文介绍了对不同 LoRa 设备配置的研究,以确定每种设备的约束条件,并确定哪种设备更适合特定任务要求。此外,电离层闪烁的影响是通过基于 SDR(软件定义无线电)的测试设置来评估的,该测试设置根据 Humprey 的电离层闪烁模型评估该技术的性能。这种现象在赤道地区产生深度信号强度衰减和相位波动,主要是在高纬度地区产生相位波动。获得的指标是作为强度闪烁指数函数的接​​收功率和数据包传输率,并显示了 LoRa 调制在这些新环境中的鲁棒性。电离层闪烁的影响是通过基于 SDR(软件定义无线电)的测试设置来评估的,该测试设置根据 Humprey 的电离层闪烁模型评估该技术的性能。这种现象在赤道地区产生深度信号强度衰减和相位波动,主要是在高纬度地区产生相位波动。获得的指标是作为强度闪烁指数函数的接​​收功率和数据包传输率,并显示了 LoRa 调制在这些新环境中的鲁棒性。电离层闪烁的影响是通过基于 SDR(软件定义无线电)的测试设置来评估的,该测试设置根据 Humprey 的电离层闪烁模型评估该技术的性能。这种现象在赤道地区产生深度信号强度衰减和相位波动,主要是在高纬度地区产生相位波动。获得的指标是作为强度闪烁指数函数的接​​收功率和数据包传输率,并显示了 LoRa 调制在这些新环境中的鲁棒性。主要是高纬度地区的相位波动。获得的指标是作为强度闪烁指数函数的接​​收功率和数据包传输率,并显示了 LoRa 调制在这些新环境中的鲁棒性。主要是高纬度地区的相位波动。获得的指标是作为强度闪烁指数函数的接​​收功率和数据包传输率,并显示了 LoRa 调制在这些新环境中的鲁棒性。
更新日期:2020-01-01
down
wechat
bug