Underwater Backscatter Localization: Toward a Battery-Free Underwater GPS
Name
3422604.3425950.pdf
Description
Published version
Size
2.5 MB
Format
Adobe PDF
Checksum (MD5)
37323069d5d16947b381b7cc41a6bf82
Author(s)
Ghaffarivardavagh, Reza
Afzal, Sayed Saad
Rodriguez, Osvy
Adib, Fadel
Date Issued
2020
Journal
HotNets 2020 - Proceedings of the 19th ACM Workshop on Hot Topics in Networks
Publisher
ACM
Citation
Ghaffarivardavagh, Reza, Afzal, Sayed Saad, Rodriguez, Osvy and Adib, Fadel. 2020. "Underwater Backscatter Localization: Toward a Battery-Free Underwater GPS." HotNets 2020 - Proceedings of the 19th ACM Workshop on Hot Topics in Networks.
Version
Final published version
Abstract
Can we build a battery-free underwater GPS? While underwater localization is a long-studied problem, in this paper, we seek to bring it to battery-free underwater networks. These recently-introduced networks communicate by simply backscattering (i.e., reflecting) acoustic signals. While such backscatter-based communication enables them to operate at net-zero power, it also introduces new and unique challenges for underwater localization. We present the design and demonstration of the first underwater backscatter localization (UBL) system. Our design explores various challenges for bringing localization to underwater backscatter, including extreme multipath, acoustic delay spread, and mobility. We describe how an adaptive and context-aware algorithm may address some of these challenges and adapt to diverse underwater environments (such as deep vs shallow water, and high vs low mobility). We also present a prototype implementation and evaluation of UBL in the Charles River in Boston, and highlight open problems and opportunities for underwater backscatter localization in ocean exploration,marine-life sensing, and robotics.
MIT Department
Massachusetts Institute of Technology. Media Laboratory
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1145/3422604.3425950
