基于LoRa的低轨道卫星物联网传输技术

doi:10.11959/j.issn.2096-8930.2022038

Abstract

Abstract:

As an emerging wide area network technology, LoRa has the characteristics of low power consumption and wide coverage.It has very broad prospects in the field of internet of things applications.In recent years, it has been deployed in countless objects around the world.The advantages of wide coverage of low-orbit satellite networks make it an inevitable technology to achieve global coverage of massive internet of things.Firstly, the basic principles of LoRa technology were expounded.Then the problems existed after the LoRa technology was directly introduced into the low-orbit satellite IoT were analyzed.Finally, a set of LoRa transmission technology suitable for low-orbit satellite IoT was proposed, focused on solved the problem of LoRa frame synchronization under the condition of low-orbit long-distance low-power transmission, and the problem of LoRa demodulation caused by the high-speed movement of satellites due to the Doppler frequency off set.The simulation results showed that the proposed joint synchronization and frequency off set estimation algorithm could obviously improved the synchronization probability and transmission reliability of LoRa technology under the conditions of extremely low SNR and large Doppler frequency shift.

Key words: low-orbit satellite, internet of things, LoRa, frame synchronization, frequency off set estimation

CLC Number:

TN929.5

Zehao LI, Jianpeng MA, Shun ZHANG, Xiao WEI, Jing ZHANG. Low Orbit Satellite Internet of Things Transmission Technology Based on LoRa[J]. Space-Integrated-Ground Information Networks, 2022, 3(4): 2-11.

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References 20

[1]	PARASHAR R , KHAN A , NEHA A K . A survey:The internet of things[J]. International Journal of Technical Research and Applications, 2016,4(3): 251-257.
[2]	QU Z C , ZHANG G X , CAO H T ,et al. LEO satellite constellation for Internet of Things[J]. IEEE Access, 2019(5): 18391-18401.
[3]	沈俊, 高卫斌, 张更新 . 低轨卫星物联网的发展背景、业务特点和技术挑战[J]. 电信科学, 2019,35(5): 113-119.
	SHEN J , GAO W B , ZHANG G X . Developing background,service characteristics and challenges of LEO IoT[J]. Telecommunications Science, 2019,35(5): 113-119.
[4]	DE SANCTIS M , CIANCA E , ARANITI G ,et al. Satellite communications supporting Internet of remote things[J]. IEEE Internet of Things Journal, 2016,3(1): 113-123.
[5]	JANHUNEN J , KETONEN J , HULKKONEN A ,et al. Satellite uplink transmission with terrestrial network interference[C]// Proceedings of 2015 IEEE Global Communications Conference. Piscataway:IEEE Press, 2015: 1-6.
[6]	张景, 魏肖, 吴云飞 ,等. 天基物联网技术研究与发展综述[J]. 无线电通信技术, 2021,47(5): 543-548.
	ZHANG J , WEI X , WU Y F ,et al. Research of technology and development in satellite Internet of Things[J]. Radio Communications Technology, 2021,47(5): 543-548.
[7]	RAZA U , KULKARNI P , SOORIYABANDARA M . Low power wide area networks:an overview[J]. IEEE Communications Surveys ＆ Tutorials, 2017,19(2): 855-873.
[8]	AYOUB W , SAMHAT A E , NOUVEL F ,et al. Internet of mobile things:overview of LoRaWAN,DASH7,and NB-IoT in LPWANs standards and supported mobility[J]. IEEE Communications Surveys ＆ Tutorials, 2019,21(2): 1561-1581.
[9]	WU T W , QU D X , ZHANG G X . Research on LoRa adaptability in the LEO satellites Internet of Things[C]// Proceedings of 2019 15th International Wireless Communications ＆ Mobile Computing Conference (IWCMC). Piscataway:IEEE Press, 2019: 131-135.
[10]	REYNDERS B , POLLIN S . Chirp spread spectrum as a modulation technique for long range communication[C]// Proceedings of 2016 Symposium on Communications and Vehicular Technologies (SCVT). Piscataway:IEEE Press, 2016: 1-5.
[11]	BOR M , VIDLER J , ROEDIG U . LoRa for the Internet of Things[J]. 2016.
[12]	ELSHABRAWY T , ROBERT J . Analysis of BER and coverage performance of LoRa modulation under same spreading factor interference[C]// Proceedings of 2018 IEEE 29th Annual International Symposium on Personal,Indoor and Mobile Radio Communications. Piscataway:IEEE Press, 2018: 1-6.
[13]	PETAJAJARVI J , MIKHAYLOV K , ROIVAINEN A ,et al. On the coverage of LPWANs:range evaluation and channel attenuation model for LoRa technology[C]// Proceedings of 2015 14th International Conference on ITS Telecommunications (ITST). Piscataway:IEEE Press, 2015: 55-59.
[14]	AUGUSTIN A , YI J Z , CLAUSEN T ,et al. A study of LoRa:long range ＆ low power networks for the Internet of Things[J]. Sensors (Basel,Switzerland), 2016,16(9): 1466.
[15]	AFISIADIS O , BURG A , BALATSOUKAS-STIMMING A , . Coded LoRa frame error rate analysis[C]// Proceedings of ICC 2020 IEEE International Conference on Communications. Piscataway:IEEE Press, 2020: 1-6.
[16]	KNIGHT M , SEEBER B . Decoding LoRa:Realizing a modern LPWAN with SDR[C]// Proceedings of the GNU Radio Conference. Piscataway:IEEE Press, 2016,1: 1.
[17]	TAPPAREL J . Complete reverse engineering of LoRa PHY[J]. Tech.Rep., 2019.
[18]	EIGNER H . Interference analysis of LoRaWAN systems[Z]. 2021.
[19]	MROUE H , NASSER A , PARREIN B ,et al. Analytical and simulation study for LoRa modulation[C]// Proceedings of 2018 25th International Conference on Telecommunications (ICT). Piscataway:IEEE Press, 2018: 655-659.
[20]	NGUYEN T T , NGUYEN H H , BARTON R ,et al. Efficient design of Chirp spread spectrum modulation for low-power wide-area networks[J]. IEEE Internet of Things Journal, 2019,6(6): 9503-9515.

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