The accelerating growth of the Internet of Things (IoT) and its integration with Low-Earth Orbit (LEO) satellites demand efficient, reliable, and scalable communication protocols. Among these, the Long-Range Frequency Hopping Spread Spectrum (LR-FHSS) modulation, tailored for LEO satellite IoT communications, sparks keen interest. This work presents a joint approach to enhancing the scalability of LR-FHSS, addressing the demand for massive connectivity. We deepen into Frequency Hopping Sequence (FHS) mechanisms within LR-FHSS, spotlighting the potential of leveraging Wide-Gap sequences. Concurrently, we introduce two novel demodulator allocation strategies, namely, ``Early-Decode" and ``Early-Drop," to optimize the utilization of LoRa-specific gateway decoding resources. Our research further validates these findings with extensive simulations, offering a comprehensive look into the future potential of LR-FHSS scalability in IoT settings.

翻译：物联网（IoT）的加速发展及其与低地球轨道（LEO）卫星的融合，对高效、可靠且可扩展的通信协议提出了迫切需求。其中，专为LEO卫星物联网通信设计的远距离跳频扩频（LR-FHSS）调制技术引起了广泛关注。本研究提出了一种联合方法来提升LR-FHSS的可扩展性，以应对海量连接的需求。我们深入探讨了LR-FHSS中的跳频序列（FHS）机制，重点分析了利用宽间隔序列的潜力。同时，我们引入了两种新颖的解调器分配策略，即“Early-Decode”与“Early-Drop”，以优化LoRa专用网关解码资源的利用率。本研究通过大量仿真进一步验证了这些发现，为LR-FHSS在物联网场景中的可扩展性未来潜力提供了全面展望。