![](https://signal-kinetics.media.mit.edu/wp-content/uploads/sites/10/2022/03/Publication-header-31722_long-1-scaled.jpg)
Publications
![](https://www.mit.edu/~fadel/images/PAB-theory2.png)
The Underwater Backscatter Channel: Theory, Link Budget, and Experimental Validation
ACM MobiCom’23 Madrid, Spain, October 2023
Waleed Akbar, Ahmed Allam, Fadel Adib
![](https://www.mit.edu/~fadel/images/VAB-design.jpg)
Enabling Long-Range Underwater Backscatter via Van Atta Acoustic Networks
ACM SIGCOMM’23, New York City, NY, September 2023
Aline Eid, John Rademacher, Waleed Akbar, Purui Wang, Ahmed Allam, Fadel Adib
![](http://www.mit.edu/~fadel/images/underwater-camera.jpeg)
ACM WUWNet, 2022
John Rademacher, Waleed Akbar, Sayed Saad Afzal, Osvy Rodriguez, Nazish Naeem, Purui Wang, Mario Doumet, Unsoo Ha, Reza Ghaffarivardavagh, Fadel Adib
![](http://www.mit.edu/~fadel/images/WirelessBatterylessCamera.jpg)
Battery-Free Wireless Imaging of Underwater Environments
Nature Communications, 2022
Sayed Saad Afzal, Waleed Akbar, Osvy Rodriguez, Mario Doumet, Unsoo Ha, Reza Ghaffarivardavagh, Fadel Adib
![](http://www.mit.edu/~fadel/images/underwater-batteryfreeML.png)
Towards Battery-Free Machine Learning and Inference in Underwater Environments
Yuchen Zhao, Sayed Saad Afzal, Waleed Akbar, Osvy Rodriguez, Fan Mo, David Boyle, Fadel Adib, Hamed Haddadi
![](https://signal-kinetics.media.mit.edu/wp-content/uploads/sites/10/2020/12/node-scaled-1-1024x584.jpg)
Enabling Higher-Order Modulation for Underwater Backscatter Communication
Global OCEANS ’20
Sayed Saad Afzal, Reza Ghaffarivardavagh, Waleed Akbar, Osvy Rodriguez, and Fadel Adib
![](https://signal-kinetics.media.mit.edu/wp-content/uploads/sites/10/2020/12/underwater-GPS-1-e1608564408199.jpg)
Underwater Backscatter Localization: Toward a Battery-Free Underwater GPS
![](https://signal-kinetics.media.mit.edu/wp-content/uploads/sites/10/2020/12/U2B-pic-1024x605.jpg)
Ultra-Wideband Underwater Backscatter via Piezoelectric Metamaterials
ACM SigCOMM ’20
Reza Ghaffarivardavagh, Sayed Saad Afzal, Osvy Rodriguez, and Fadel Adib
![](https://signal-kinetics.media.mit.edu/wp-content/uploads/sites/10/2020/12/backscatter-gopro-photo-1.jpg.800x800-1.jpg)
Underwater Backscatter Networking
ACM SigCOMM ’19
Reza Ghaffarivardavagh, Sayed Saad Afzal, Osvy Rodriguez, and Fadel Adib
![](https://signal-kinetics.media.mit.edu/wp-content/uploads/sites/10/2020/12/pic-TARF-animated.gif)
Networking across Boundaries: Enabling Wireless Communication through the Water-Air Interface
ACM SigCOMM ’18
Francesco Tonolini and Fadel Adib