AI 中文总结
本文针对LPWAN的可扩展性等挑战，提出适配的C-RAN架构并实现LoRa案例验证，实验表明该架构可提升多接收机联合处理的信号灵敏度。
AI 中文摘要
近年来，低功耗广域网（LPWAN）技术作为物联网（IoT）应用的连接选项已获得显著关注。这些网络在提供长距离、低功耗、低成本连接的同时，目前面临着可扩展性、可靠性和效率方面的挑战，亟待解决。本文首先明确了LPWAN的重要挑战，随后倡导引入针对LPWAN定制的集中式无线接入网（C-RAN）架构，并展示了针对广泛流行的长距离（LoRa）标准的所提C-RAN的概念验证实现与部署。此外，本文还提供了实验结果，以证明并量化在准静态场景及无人机搭载发射机的情况下，所提集中式架构支持的多接收机基带信号联合处理可获得的灵敏度提升。
英文摘要
In recent years, low-power wide-area network (LPWAN) technologies have gained significant traction as a connectivity option for Internet of Things (IoT) applications. While these networks have been successful in providing long-range, low-power, and low-cost connectivity, they currently face scalability, reliability, and efficiency challenges that require immediate attention. In this paper, we first identify important challenges for LPWANs. We then advocate for the introduction of a centralized radio access network (C-RAN) architecture tailored for LPWANs and present a proof-of-concept implementation and deployment of the proposed C-RAN for the widely popular long range (LoRa) standard. We also provide experimental results to demonstrate and quantify the increased sensitivity that can be obtained from joint processing of the baseband signals of multiple receivers, enabled by the proposed centralized architecture in quasi-static scenarios and drone-mounted transmitters.
CommentsAccepted for publication in IEEE Internet of Things Magazine
