Long Range Backscatter Communication Method Based on Direct Digital Frequency Synthesis

Xiaoqing TANG; Guihui XIE; Yajun SHE; Shuai ZHANG

doi:10.11999/JEIT190001

Volume 41 Issue 12

Dec. 2019

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Xiaoqing TANG, Guihui XIE, Yajun SHE, Shuai ZHANG. Long Range Backscatter Communication Method Based on Direct Digital Frequency Synthesis[J]. Journal of Electronics & Information Technology, 2019, 41(12): 2802-2809. doi: 10.11999/JEIT190001

Citation:

Xiaoqing TANG, Guihui XIE, Yajun SHE, Shuai ZHANG. Long Range Backscatter Communication Method Based on Direct Digital Frequency Synthesis[J]. Journal of Electronics & Information Technology, 2019, 41(12): 2802-2809. doi: 10.11999/JEIT190001

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Long Range Backscatter Communication Method Based on Direct Digital Frequency Synthesis

doi: 10.11999/JEIT190001

1.
Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
2.
School of Automation, China University of Geosciences, Wuhan 430074, China

Funds: The 2018 Major Innovation Project of Hubei Province (2018AAA064), The 2018 Experimental Technology Research Project of CUG (SJ-201831)

Received Date: 2019-01-03
Rev Recd Date: 2019-06-08

Available Online: 2019-07-04

Publish Date: 2019-12-01

Abstract

Abstract

Long Range(LoRa) Backscattering Communication (BC) not only has the advantages of low cost and low power consumption, but also has a long communication distance. However, the existing LoRa BC scheme is complex and can not be applied to actual engineering. For this purpose, a new LoRa BC method is proposed. A Direct Digital frequency Synthesis (DDS) technique is used to generate a square wave with a linear frequency variation as a LoRa scattering modulation signal. For the first time, the prototype of LoRa BC system based on MCU is demonstrated. Experimental results show that design can successfully realize backscatter communication at any position between the station and the receiver which are 208 meters apart, while being compatible with commodity LoRa chipset. In addition, the method is also applicable to an Application Specific Integrated Circuit (ASIC) design, which enables the LoRa backscattering IC to have higher robustness, lower cost, and lower power consumption.
- Internet of Things(IoT),
- Long Range (LoRa) Backscatter Communication (BC),
- Chirp Spread Spectrum (CSS) modulation,
- Low power comsumption

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References(13)

References

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