Camaroptera: A long-range image sensor with local inference for remote sensing applications

H Desai, M Nardello, D Brunelli, B Lucia - ACM Transactions on …, 2022‏ - dl.acm.org
Batteryless image sensors present an opportunity for long-life, long-range sensor
deployments that require zero maintenance, and have low cost. Such deployments are …

Leggiero: Analog WiFi backscatter with payload transparency

X Na, X Guo, Z Yu, J Zhang, Y He, Y Liu - Proceedings of the 21st Annual …, 2023‏ - dl.acm.org
Backscatter is an enabling technology for battery-free sensing in today's Artificial Intelligence
of Things (AIOT). Building a backscatter-based sensing system, however, is a daunting task …

Pushing the limits of long range wireless sensing with lora

B **e, Y Yin, J **ong - Proceedings of the ACM on Interactive, Mobile …, 2021‏ - dl.acm.org
Wireless sensing is an exciting new research area which enables a large variety of
applications ranging from coarse-grained daily activity recognition to fine-grained vital sign …

WideSee: Towards wide-area contactless wireless sensing

L Chen, J **ong, X Chen, SI Lee, K Chen… - Proceedings of the 17th …, 2019‏ - dl.acm.org
Contactless wireless sensing without attaching a device to the target has achieved
promising progress in recent years. However, one severe limitation is the small sensing …

Combating interference for long range LoRa sensing

B **e, J **ong - Proceedings of the 18th Conference on Embedded …, 2020‏ - dl.acm.org
Wireless sensing has become a hot research topic recently, enabling a large range of
applications. However, due to the intrinsic nature of employing weak target-reflection signal …

Towards flexible wireless charging for medical implants using distributed antenna system

X Fan, L Shangguan, R Howard, Y Zhang… - Proceedings of the 26th …, 2020‏ - dl.acm.org
This paper presents the design, implementation and evaluation of In-N-Out, a software-
hardware solution for far-field wireless power transfer. In-N-Out can continuously charge a …

RFID tattoo: A wireless platform for speech recognition

J Wang, C Pan, H **, V Singh, Y Jain, JI Hong… - Proceedings of the …, 2019‏ - dl.acm.org
This paper presents an RF-based assistive technology for voice impairments (ie,
dysphonia), which occurs in an estimated 1% of the global population. We specifically focus …

UAV-aided backscatter communications: Performance analysis and trajectory optimization

R Han, L Bai, Y Wen, J Liu, J Choi… - IEEE Journal on …, 2021‏ - ieeexplore.ieee.org
In 5G massive machine-type communication (mMTC), power-limited or battery-free parasite
devices such as radio frequency identification (RFID) tags, can use the transmitted signals …

Passive {DSSS}: Empowering the downlink communication for backscatter systems

S Li, H Zheng, C Zhang, Y Song, S Yang… - … USENIX symposium on …, 2022‏ - usenix.org
The uplink and downlink transmissions in most backscatter communication systems are
highly asymmetric. The downlink transmission often suffers from its short range and …

OmniScatter: extreme sensitivity mmWave backscattering using commodity FMCW radar

KM Bae, N Ahn, Y Chae, P Pathak, SM Sohn… - Proceedings of the 20th …, 2022‏ - dl.acm.org
Massive connectivity is a key to the success of the Internet of Things. While mmWave
backscatter has great potential, substantial signal attenuation and overwhelming ambient …