一种提高物联网通信数据速率的多层叠加调制方案

2023 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2023-08-10 DOI:10.1109/ICCCWorkshops57813.2023.10233794

Jin-yu Luo, Yang Bai, B. Bai, Chao Chen, Wenkun Wen

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引用次数: 0

摘要

LoRa是一种新兴的低功耗广域网(LPWAN)技术。其物理层采用基于啁啾扩频(CSS)的调制方案，具有较低的数据速率。本文首先提出了一种具有增强数据速率的多重斜率键控CSS (MSKCSS)调制方法。然后提出了一种基于msk - css的多层叠加调制(MLSM)方案，旨在提高LoRa调制的数据速率。此外，我们还分析了不同MFs的MSK-CSS信号的正交性，并给出了MFs在不同层的分配规则。仿真结果表明，该方案在数据率和误码率性能之间实现了灵活的平衡。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Multi-layer Superposition Modulation Scheme to Improve the Data Rate for IoT Communications

LoRa is an emerging low-power wide-area network (LPWAN) technology. Its physical layer utilizes a chirp spread spectrum (CSS)-based modulation scheme and has a lower data rate. This paper first presents a multiple-slope-keying CSS (MSKCSS) modulation with an enhanced data rate. Then we propose an MSK-CSS-based multi-layer superposition modulation (MLSM) scheme designed to increase the data rate of LoRa modulation. In addition, we also analyze the orthogonality of MSK-CSS signals of different MFs and give the allocation rule of MFs in different layers. Simulation results demonstrate that the proposed MLSM scheme achieves a flexible trade-off between data rate and bit error rate performance.

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2023 IEEE/CIC International Conference on Communications in China (ICCC Workshops)

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