Hybrid beamformer design for high dynamic range ambient backscatter receivers

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Standard

Hybrid beamformer design for high dynamic range ambient backscatter receivers. / Duan, Ruifeng; Menta, Estifanos; Yigitler, Huseyin; Jantti, Riku; Han, Zhu.

2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Proceedings. IEEE, 2019. 8757120.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Duan, R, Menta, E, Yigitler, H, Jantti, R & Han, Z 2019, Hybrid beamformer design for high dynamic range ambient backscatter receivers. in 2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Proceedings., 8757120, IEEE, IEEE International Conference on Communications Workshops, Shanghai, China, 20/05/2019. https://doi.org/10.1109/ICCW.2019.8757120

APA

Duan, R., Menta, E., Yigitler, H., Jantti, R., & Han, Z. (2019). Hybrid beamformer design for high dynamic range ambient backscatter receivers. In 2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Proceedings [8757120] IEEE. https://doi.org/10.1109/ICCW.2019.8757120

Vancouver

Duan R, Menta E, Yigitler H, Jantti R, Han Z. Hybrid beamformer design for high dynamic range ambient backscatter receivers. In 2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Proceedings. IEEE. 2019. 8757120 https://doi.org/10.1109/ICCW.2019.8757120

Author

Duan, Ruifeng ; Menta, Estifanos ; Yigitler, Huseyin ; Jantti, Riku ; Han, Zhu. / Hybrid beamformer design for high dynamic range ambient backscatter receivers. 2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Proceedings. IEEE, 2019.

Bibtex - Download

@inproceedings{0af1eb47121e4696aa19f0fec87ef17e,
title = "Hybrid beamformer design for high dynamic range ambient backscatter receivers",
abstract = "In bi-static Ambient Backscatter Communications (AmBC) systems, the receiver needs to operate at a large dynamic range because the direct path from the ambient source to the receiver can be several orders of magnitude stronger than the scattered path modulated by the AmBC device. In this paper, we propose a novel analog-digital hybrid null-steering beamformer which allows the backscatter receiver to detect and decode the weak AmBC-modulated signal buried in the strong direct path signals and the noise, without requiring the instantaneous channel state information. The analog cancellation of the strong signal components allows the receiver automatic gain control to adjust to the level of the weak AmBC signals. This hence allows common analog-to-digital converters to be used for sampling the signal. After cancelling the strong components, the ambient source signal appears as zero mean fast fading from the AmBC system point of view. We use the direct path signal component to track the phase of the unknown ambient signal. In order to avoid channel estimation, we propose AmBC to use orthogonal channelization codes. The results show that the design allows the AmBC receiver to detect the backscatter binary phase shift keying signals without decoding the ambient signals and requiring knowledge of the instantaneous channel state information.",
keywords = "Ambient backscatter, Hybrid analog-digital beamformer, Low-power receiver",
author = "Ruifeng Duan and Estifanos Menta and Huseyin Yigitler and Riku Jantti and Zhu Han",
year = "2019",
month = "5",
day = "1",
doi = "10.1109/ICCW.2019.8757120",
language = "English",
booktitle = "2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Proceedings",
publisher = "IEEE",

}

RIS - Download

TY - GEN

T1 - Hybrid beamformer design for high dynamic range ambient backscatter receivers

AU - Duan, Ruifeng

AU - Menta, Estifanos

AU - Yigitler, Huseyin

AU - Jantti, Riku

AU - Han, Zhu

PY - 2019/5/1

Y1 - 2019/5/1

N2 - In bi-static Ambient Backscatter Communications (AmBC) systems, the receiver needs to operate at a large dynamic range because the direct path from the ambient source to the receiver can be several orders of magnitude stronger than the scattered path modulated by the AmBC device. In this paper, we propose a novel analog-digital hybrid null-steering beamformer which allows the backscatter receiver to detect and decode the weak AmBC-modulated signal buried in the strong direct path signals and the noise, without requiring the instantaneous channel state information. The analog cancellation of the strong signal components allows the receiver automatic gain control to adjust to the level of the weak AmBC signals. This hence allows common analog-to-digital converters to be used for sampling the signal. After cancelling the strong components, the ambient source signal appears as zero mean fast fading from the AmBC system point of view. We use the direct path signal component to track the phase of the unknown ambient signal. In order to avoid channel estimation, we propose AmBC to use orthogonal channelization codes. The results show that the design allows the AmBC receiver to detect the backscatter binary phase shift keying signals without decoding the ambient signals and requiring knowledge of the instantaneous channel state information.

AB - In bi-static Ambient Backscatter Communications (AmBC) systems, the receiver needs to operate at a large dynamic range because the direct path from the ambient source to the receiver can be several orders of magnitude stronger than the scattered path modulated by the AmBC device. In this paper, we propose a novel analog-digital hybrid null-steering beamformer which allows the backscatter receiver to detect and decode the weak AmBC-modulated signal buried in the strong direct path signals and the noise, without requiring the instantaneous channel state information. The analog cancellation of the strong signal components allows the receiver automatic gain control to adjust to the level of the weak AmBC signals. This hence allows common analog-to-digital converters to be used for sampling the signal. After cancelling the strong components, the ambient source signal appears as zero mean fast fading from the AmBC system point of view. We use the direct path signal component to track the phase of the unknown ambient signal. In order to avoid channel estimation, we propose AmBC to use orthogonal channelization codes. The results show that the design allows the AmBC receiver to detect the backscatter binary phase shift keying signals without decoding the ambient signals and requiring knowledge of the instantaneous channel state information.

KW - Ambient backscatter

KW - Hybrid analog-digital beamformer

KW - Low-power receiver

UR - http://www.scopus.com/inward/record.url?scp=85070329232&partnerID=8YFLogxK

U2 - 10.1109/ICCW.2019.8757120

DO - 10.1109/ICCW.2019.8757120

M3 - Conference contribution

BT - 2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Proceedings

PB - IEEE

ER -

ID: 36175300