{VMscatter}: A versatile {MIMO} backscatter

X Liu, Z Chi, W Wang, Y Yao, T Zhu - 17th USENIX symposium on …, 2020 - usenix.org
In this paper, we design and implement a versatile MIMO backscatter (VMscatter) system,
which leverages the diversity features of MIMO to dramatically decrease bit error rate (BER) …

Spatial stream backscatter using commodity wifi

J Zhao, W Gong, J Liu - Proceedings of the 16th annual international …, 2018 - dl.acm.org
Backscatter WiFi offers a novel low-cost and low-energy solution for RFID tags to
communicate with existing WiFi devices. State-of-the-art backscatter WiFi solutions have …

Rapidrider: Efficient wifi backscatter with uncontrolled ambient signals

Q Wang, S Chen, J Zhao… - IEEE INFOCOM 2021-IEEE …, 2021 - ieeexplore.ieee.org
This paper presents RapidRider, the first WiFi backscatter system that takes uncontrolled
OFDM WiFi signals, eg, 802.11 a/g/n, as excitations and efficiently embeds tag data at the …

Multi-tag backscattering to MIMO reader: Channel estimation and throughput fairness

D Mishra, EG Larsson - IEEE Transactions on Wireless …, 2019 - ieeexplore.ieee.org
Green low power networking with the least requirement of dedicated radio resources is need
of the hour which has led to the upsurge of backscatter communication (BSC) technology …

Enabling native wifi connectivity for ambient backscatter

L Yuan, W Gong - Proceedings of the 21st annual international …, 2023 - dl.acm.org
WiFi backscatter communication has required unwanted constraints on either excitations or
receivers since its inception eight years ago. We present Chameleon, the first native WiFi …

Verification and redesign of {OFDM} backscatter

X Liu, Z Chi, W Wang, Y Yao, P Hao, T Zhu - 18th USENIX symposium on …, 2021 - usenix.org
Orthogonal frequency-division multiplexing (OFDM) has been widely used in WiFi, LTE, and
adopted in 5G. Recently, researchers have proposed multiple OFDM-based WiFi …

Content-agnostic backscatter from thin air

Y Yang, L Yuan, J Zhao, W Gong - Proceedings of the 20th annual …, 2022 - dl.acm.org
We present CAB, a content-agnostic backscatter system that can demodulate both tag and
ambient data from ambient backscattered WiFi alone. In contrast to prior ambient backscatter …

Witag: Rethinking backscatter communication for wifi networks

A Abedi, MH Mazaheri, O Abari, T Brecht - … of the 17th ACM workshop on …, 2018 - dl.acm.org
WiFi-based backscatter systems provide the potential to deliver battery-free sensors (tags)
which can transmit data using a WiFi network. Existing backscatter systems have several …

{SyncScatter}: Enabling {WiFi} like synchronization and range for {WiFi} backscatter communication

M Dunna, M Meng, PH Wang, C Zhang… - … USENIX symposium on …, 2021 - usenix.org
WiFi backscattering can enable direct connectivity of IoT devices with commodity WiFi
hardware at low power. However, most existing work in this area has overlooked the …

X-tandem: Towards multi-hop backscatter communication with commodity wifi

J Zhao, W Gong, J Liu - Proceedings of the 24th annual international …, 2018 - dl.acm.org
Backscatter communication offers a cost-and energy-efficient means for IoT sensor data
exchange. The IoT vision for ubiquitous interconnection, in practice, demands multi-hop …