@inproceedings{dbfae8ba093446319fc664b264950bc3,
title = "LeakyTrack: Non-coherent single-antenna nodal and environmental mobility tracking with a leaky-wave antenna",
abstract = "Radio frequency signals have the potential to convey rich information about a node's motion and surroundings. Unfortunately, extracting such information is challenging, previously requiring accurate phase measurement, large antenna array structures, or extensive training. In this paper, we present LeakyTrack, a novel system that enables non-coherent and training-free motion sensing with a single antenna. The key idea is to create unique spectrally coded signals at different spatial directions so that geometric properties of the receiving node, as well as any potential objects in the environment, leave spectral footprints on the collected signal. To do so, we exploit a THz leaky-wave antenna and realize a color-coded scan in which signals with distinct spectral characteristics simultaneously emit across the angular domain. LeakyTrack infers nodal and environmental motion by analyzing the received spectral profile. We evaluate the performance of LeakyTrack via extensive over-the-air experiments.",
keywords = "leaky-wave antenna, terahertz waves, wireless sensing",
author = "Yasaman Ghasempour and Yeh, {Chia Yi} and Rabi Shrestha and Yasith Amarasinghe and Daniel Mittleman and Knightly, {Edward W.}",
note = "Publisher Copyright: {\textcopyright} 2020 ACM.; 18th ACM Conference on Embedded Networked Sensor Systems, SenSys 2020 ; Conference date: 16-11-2020 Through 19-11-2020",
year = "2020",
month = nov,
day = "16",
doi = "10.1145/3384419.3430717",
language = "English (US)",
series = "SenSys 2020 - Proceedings of the 2020 18th ACM Conference on Embedded Networked Sensor Systems",
publisher = "Association for Computing Machinery, Inc",
pages = "56--68",
booktitle = "SenSys 2020 - Proceedings of the 2020 18th ACM Conference on Embedded Networked Sensor Systems",
}