Toward High Bit Rate LoRa Transmission via Joint Frequency-Amplitude Modulation

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Argitaratua izan da:Electronics vol. 14, no. 13 (2025), p. 2687-2709
Egile nagusia: Tang Gupeng
Beste egile batzuk: Zhao Zhidan, Zhang, Chengxin, Wu, Jiaqi, Jing, Nan, Wang, Lin
Argitaratua:
MDPI AG
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Sarrera elektronikoa:Citation/Abstract
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024 7 |a 10.3390/electronics14132687  |2 doi 
035 |a 3229144012 
045 2 |b d20250101  |b d20251231 
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100 1 |a Tang Gupeng  |u School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; tanggupeng@stumail.ysu.edu.cn (G.T.); zhaozhidan@stumail.ysu.edu.cn (Z.Z.); wujiaqino.1-dy@163.com (J.W.); 
245 1 |a Toward High Bit Rate LoRa Transmission via Joint Frequency-Amplitude Modulation 
260 |b MDPI AG  |c 2025 
513 |a Journal Article 
520 3 |a Long Range (LoRa) is one of the promising Low-Power Wide-Area Network technologies to achieve a strong anti-noise ability due to the modulation of the chirp spread spectrum in low-power and long-distance communications. However, LoRa suffers the problem of packet collisions. Hence, we propose QR−LoRa, a novel PHY-layer scheme that can transmit data in both amplitude and frequency dimensions simultaneously. For the amplitude modulation, we modulate the constant envelope of a LoRa chirp with a cyclic right-shifted ramp signal, where the cyclic right-shifted position carries the data of the amplitude modulation. We adopt the standard LoRa for frequency modulation. We prototype QR−LoRa on the software-defined radio platform USRP N210 and evaluate its performance via simulations and field experiments. The results show the bit rate gain of QR−LoRa is up to 2× compared with the standard LoRa device. 
653 |a Spread spectrum 
653 |a Fourier transforms 
653 |a Signal to noise ratio 
653 |a Wide area networks 
653 |a Bandwidths 
653 |a Power management 
653 |a Spectrum allocation 
653 |a Algorithms 
653 |a Frequency modulation 
653 |a Performance evaluation 
653 |a Energy consumption 
653 |a Software radio 
653 |a Chirp 
653 |a Amplitude modulation 
700 1 |a Zhao Zhidan  |u School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; tanggupeng@stumail.ysu.edu.cn (G.T.); zhaozhidan@stumail.ysu.edu.cn (Z.Z.); wujiaqino.1-dy@163.com (J.W.); 
700 1 |a Zhang, Chengxin  |u School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; tanggupeng@stumail.ysu.edu.cn (G.T.); zhaozhidan@stumail.ysu.edu.cn (Z.Z.); wujiaqino.1-dy@163.com (J.W.); 
700 1 |a Wu, Jiaqi  |u School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; tanggupeng@stumail.ysu.edu.cn (G.T.); zhaozhidan@stumail.ysu.edu.cn (Z.Z.); wujiaqino.1-dy@163.com (J.W.); 
700 1 |a Jing, Nan  |u School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; tanggupeng@stumail.ysu.edu.cn (G.T.); zhaozhidan@stumail.ysu.edu.cn (Z.Z.); wujiaqino.1-dy@163.com (J.W.); 
700 1 |a Wang, Lin  |u School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; tanggupeng@stumail.ysu.edu.cn (G.T.); zhaozhidan@stumail.ysu.edu.cn (Z.Z.); wujiaqino.1-dy@163.com (J.W.); 
773 0 |t Electronics  |g vol. 14, no. 13 (2025), p. 2687-2709 
786 0 |d ProQuest  |t Advanced Technologies & Aerospace Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3229144012/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text + Graphics  |u https://www.proquest.com/docview/3229144012/fulltextwithgraphics/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3229144012/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch