Passive DSSS: Empowering the Downlink Communication for Backscatter Systems

Songfan Li; Hui Zheng; Chong Zhang; Yihang Song; Shen Yang; Minghua Chen; Li Lu; Mo Li

Passive DSSS: Empowering the Downlink Communication for Backscatter Systems

Songfan Li, Hui Zheng, Chong Zhang, Yihang Song, Shen Yang, Minghua Chen, Li Lu, Mo Li

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

Abstract

The uplink and downlink transmissions in most backscatter communication systems are highly asymmetric. The downlink transmission often suffers from its short range and vulnerability to interference, which limits the practical application and deployment of backscatter communication systems. In this paper, we propose passive DSSS to improve the downlink communication for practical backscatter systems. Passive DSSS is able to increase the downlink signal-to-interference-plus-noise ratio (SINR) by using direct sequence spread-spectrum (DSSS) techniques to suppress interference and noise. The key challenge lies in the demodulation of DSSS signals, where the conventional solutions require power-hungry computations to synchronize a locally generated spreading code with the received DSSS signal, which is infeasible on energy-constrained backscatter devices. Passive DSSS addresses such a challenge by shifting the generation and synchronization of the spreading code from the receiver to the gateway side, and therefore achieves ultra-low power DSSS demodulation. We prototype passive DSSS for proof of concept. The experimental results show that passive DSSS improves the downlink SINR by 16.5 dB, which translates to a longer effective downlink range for backscatter communication systems.

Original language	English
Title of host publication	Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022
Publisher	USENIX Association
Pages	913-928
Number of pages	16
ISBN (Electronic)	9781939133274
Publication status	Published - 2022
Externally published	Yes
Event	19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022 - Renton, United States Duration: 4 Apr 2022 → 6 Apr 2022

Publication series

Name	Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022

Conference

Conference	19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022
Country/Territory	United States
City	Renton
Period	4/04/22 → 6/04/22

Bibliographical note

Publisher Copyright:
© 2022 by The USENIX Association. All Rights Reserved.

Cite this

Li, S., Zheng, H., Zhang, C., Song, Y., Yang, S., Chen, M., Lu, L., & Li, M. (2022). Passive DSSS: Empowering the Downlink Communication for Backscatter Systems. In Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022 (pp. 913-928). (Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022). USENIX Association.

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title = "Passive DSSS: Empowering the Downlink Communication for Backscatter Systems",

abstract = "The uplink and downlink transmissions in most backscatter communication systems are highly asymmetric. The downlink transmission often suffers from its short range and vulnerability to interference, which limits the practical application and deployment of backscatter communication systems. In this paper, we propose passive DSSS to improve the downlink communication for practical backscatter systems. Passive DSSS is able to increase the downlink signal-to-interference-plus-noise ratio (SINR) by using direct sequence spread-spectrum (DSSS) techniques to suppress interference and noise. The key challenge lies in the demodulation of DSSS signals, where the conventional solutions require power-hungry computations to synchronize a locally generated spreading code with the received DSSS signal, which is infeasible on energy-constrained backscatter devices. Passive DSSS addresses such a challenge by shifting the generation and synchronization of the spreading code from the receiver to the gateway side, and therefore achieves ultra-low power DSSS demodulation. We prototype passive DSSS for proof of concept. The experimental results show that passive DSSS improves the downlink SINR by 16.5 dB, which translates to a longer effective downlink range for backscatter communication systems.",

author = "Songfan Li and Hui Zheng and Chong Zhang and Yihang Song and Shen Yang and Minghua Chen and Li Lu and Mo Li",

note = "Publisher Copyright: {\textcopyright} 2022 by The USENIX Association. All Rights Reserved.; 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022 ; Conference date: 04-04-2022 Through 06-04-2022",

year = "2022",

language = "English",

series = "Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022",

publisher = "USENIX Association",

pages = "913--928",

booktitle = "Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022",

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Li, S, Zheng, H, Zhang, C, Song, Y, Yang, S, Chen, M, Lu, L & Li, M 2022, Passive DSSS: Empowering the Downlink Communication for Backscatter Systems. in Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022. Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022, USENIX Association, pp. 913-928, 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022, Renton, United States, 4/04/22.

Passive DSSS: Empowering the Downlink Communication for Backscatter Systems. / Li, Songfan; Zheng, Hui; Zhang, Chong et al.
Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022. USENIX Association, 2022. p. 913-928 (Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

TY - GEN

T1 - Passive DSSS

T2 - 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022

AU - Li, Songfan

AU - Zheng, Hui

AU - Zhang, Chong

AU - Song, Yihang

AU - Yang, Shen

AU - Chen, Minghua

AU - Lu, Li

AU - Li, Mo

PY - 2022

Y1 - 2022

N2 - The uplink and downlink transmissions in most backscatter communication systems are highly asymmetric. The downlink transmission often suffers from its short range and vulnerability to interference, which limits the practical application and deployment of backscatter communication systems. In this paper, we propose passive DSSS to improve the downlink communication for practical backscatter systems. Passive DSSS is able to increase the downlink signal-to-interference-plus-noise ratio (SINR) by using direct sequence spread-spectrum (DSSS) techniques to suppress interference and noise. The key challenge lies in the demodulation of DSSS signals, where the conventional solutions require power-hungry computations to synchronize a locally generated spreading code with the received DSSS signal, which is infeasible on energy-constrained backscatter devices. Passive DSSS addresses such a challenge by shifting the generation and synchronization of the spreading code from the receiver to the gateway side, and therefore achieves ultra-low power DSSS demodulation. We prototype passive DSSS for proof of concept. The experimental results show that passive DSSS improves the downlink SINR by 16.5 dB, which translates to a longer effective downlink range for backscatter communication systems.

AB - The uplink and downlink transmissions in most backscatter communication systems are highly asymmetric. The downlink transmission often suffers from its short range and vulnerability to interference, which limits the practical application and deployment of backscatter communication systems. In this paper, we propose passive DSSS to improve the downlink communication for practical backscatter systems. Passive DSSS is able to increase the downlink signal-to-interference-plus-noise ratio (SINR) by using direct sequence spread-spectrum (DSSS) techniques to suppress interference and noise. The key challenge lies in the demodulation of DSSS signals, where the conventional solutions require power-hungry computations to synchronize a locally generated spreading code with the received DSSS signal, which is infeasible on energy-constrained backscatter devices. Passive DSSS addresses such a challenge by shifting the generation and synchronization of the spreading code from the receiver to the gateway side, and therefore achieves ultra-low power DSSS demodulation. We prototype passive DSSS for proof of concept. The experimental results show that passive DSSS improves the downlink SINR by 16.5 dB, which translates to a longer effective downlink range for backscatter communication systems.

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M3 - Conference Paper published in a book

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T3 - Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022

SP - 913

EP - 928

BT - Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022

PB - USENIX Association

Y2 - 4 April 2022 through 6 April 2022

ER -

Li S, Zheng H, Zhang C, Song Y, Yang S, Chen M et al. Passive DSSS: Empowering the Downlink Communication for Backscatter Systems. In Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022. USENIX Association. 2022. p. 913-928. (Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2022).

Passive DSSS: Empowering the Downlink Communication for Backscatter Systems

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