Wireless Sensing
We at the Wireless Sensing group of WCSNG, focus on designing, researching, developing, and deploying wireless localization and sensing systems for a wide range of applications, including Extended Reality, Indoor Robotics, Navigation, Warehouse management and Industrial IoT 4.0, with the goal of providing accurate and reliable location and sensing estimates for humans, devices, and robots.
Latest News & Updates
- January 2023 A 2nd iteration of [WILD] has been released for a Kaggle competition. More details can be found at [WAIP].
- May 2022: Wide press coverage about our work in P2SLAM, Using everyday WiFi to help robots see and navigate better indoors. UCSD Press Coverage., eurekalert., Azosensors.
- April 2022: The 1st international workshop for Wireless AI perception is happening at CVPR 2022. More details can be found at [WAIP].
- September 2021UCSD News article on ULoc. New Upgrades to Old Wireless Tech Could Enable Real-Time 3D Motion Capture
- April 2020: WCSNG group inspired from the need of contact tracing and proximity sensing, has developed a BLE based proximity sensing called BluBLE to tackle with the COVID-19 pandemic.
- Feb 2019: BLoc published in Dec 2018 has prposed the idea of long sequences of 1's and 0's along with multiple antenna BLE master to enable AoA esitmation along with relative ToF esimation. Later in January 2019, BLE 5.1 has propsoed CTE (series of un-whitened 1's) based protocol for AoA esitmation.
Projects
William Hunter, Aditya Arun, Dinesh Bharadia
Open-sourced ROS compatible WiFi sensing framework to easily integrate WiFi-based sensing into robot sensors stacks
Roshan Ayyalasomayajula, Wei Sun, Aditya Arun, Dinesh Bharadia
First RF-privacy system to maintain user location privacy.
Aditya Arun, William Hunter, Roshan Ayyalasomayajula, Dinesh Bharadia
ViWiD uses Wi-Fi to improve the computational and memory efficiency of existing SLAM systems, enabling real-time execution.
Aditya Arun, Roshan Ayyalasomayajula, William Hunter, Dinesh Bharadia
The first system deployed to show that Wi-Fi can be used as a standalone sensor for Simultaneous Localization And Mapping (SLAM) navigation algorithms.
Minghui Zhao, Tyler Chang, Aditya Arun, Roshan Ayyalasomayajula, Chi Zhang, Dinesh Bharadia
ULoc’s design uses 3D Angle of Arrival (AoA) to estimate low-power, low-latency, cm-accurate UWB tag location, a shift from traditional timing-based methods.
Roshan Ayyalasomayajula, Aditya Arun, Chenfeng Wu, Sanatan Sharma, Abhishek Sethi, Deepak Vasisht, and Dinesh Bharadia
Achieves robust decimeter Wi-Fi location accuracy using DLoc (a learning algorithm) and MapFind (a data collection platform)
[LocAP-Webpage] [paper] [slides]
Shrivatsan Rajagopalan, Shreya Ganesaraman, Aravind Seetharaman, Roshan Ayyalasomayajula, Aditya Arun, Chenfeng Wu, and Dinesh Bharadia
First work to explore and develop a system to solve for mapping antenna locations on a Wi-Fi access point accurate to a few-mm
Roshan Ayyalasomayajula, Deepak Vasisht, and Dinesh Bharadia
First system that enables robust channel estimation for BLE devices, and achieves sub-meter acuracy with these measured channels.
Open-Source
At WCSNG we develop systems that are deployable and reproducable, So, we open-sourced our Codes, Datasets, and Platform Designs to ensure reproducability and aid also to aid the wireless sensing research in the community.
Source-code
Roshan Ayyalasomayajula, Aditya Arun, Chenfeng Wu, Sanatan Sharma, Abhishek Sethi, Deepak Vasisht, and Dinesh Bharadia
Pytorch code for the architecture implemented in Deep Learning based Wireless Localization for Indoor Navigation
Aditya Arun, Roshan Ayyalasomayajula, William Hunter, Dinesh Bharadia
Code base for the Wi-Fi integration into SLAM algorithm for P2SLAM deployments
Scott hao, Tyler Chang, Aditya Arun, Roshan Ayyalasomayajula, Dinesh Bharadia
Provides the code for post-processing the data collected by ULoc’s anchors
Datasets
Roshan Ayyalasomayajula, Wenshuo Zhang, Kanishka Roy, Aditya Arun, Dinesh Bharadia
Platforms
Roshan Ayyalasomayajula, Chenfeng Wu, Aditya Arun, Dinesh Bharadia
Scott hao, Tyler Chang, Aditya Arun, Roshan Ayyalasomayajula, Dinesh Bharadia
Posters and Demos
Roshan Ayyalasomayajula, Wei Sun, Aditya Arun, and Dinesh Bharadia
Aditya Arun, Tyler Chang, Yizheng Yu, Roshan Ayyalasomayajula, Dinesh Bharadia
[SenSys’22] [Webpage] [Poster Abstract]
Aditya Arun, Agrim Gupta, Shivani Bhakta, Saikiran Komatineni, Dinesh Bharadia
Full List of Publications
WiROS: WiFi sensing toolbox for robotics
William Hunter, Aditya Arun, Dinesh Bharadia
[IPSN Demo 2023]
Users are Closer than they Appear: Protecting User’s Location from WiFi APs
Roshan Ayyalasomayajula, Wei Sun, Aditya Arun, Dinesh Bharadia
[HotMobile’23]
ViWiD: Leveraging WiFi for Robust and Resource-Efficient SLAM
Aditya Arun, William Hunter, Roshan Ayyalasomayajula, Dinesh Bharadia
[Arxiv 2022]
P2SLAM: Bearing based WiFi SLAM for Indoor Robots
Aditya Arun, Roshan Ayyalasomayajula, William Hunter, Dinesh Bharadia
[IEEE Robotics and Automation 2022]
ULoc: a cm-accurate, low-latency and power-efficient UWB tag localization system
Minghui Zhao, Tyler Chang, Aditya Arun, Roshan Ayyalasomayajula, Chi Zhang, Dinesh Bharadia
[IMWUT 2021]
Sslide: Sound source localization for indoors based on deep learning
Yifan Wu, Roshan Ayyalasomayajula, Michael J. Bianco, Dinesh Bharadia, Peter Gerstoft
[ICASSP 2021]
Sound source localization based on multi-task learning and image translation network
Yifan Wu, Roshan Ayyalasomayajula, Michael J. Bianco, Dinesh Bharadia, and Peter Gerstoft
[JASA 2021]
Deep Learning based Wireless Localization for Indoor Navigation
Roshan Ayyalasomayajula, Aditya Arun, Chenfeng Wu, Sanatan Sharma, Abhishek Sethi, Deepak Vasisht, and Dinesh Bharadia
[Mobicom 2020]
LocAP: Accurate Localization of Existing WiFi Infrastructure
Shrivatsan Rajagopalan, Shreya Ganesaraman, Aravind Seetharaman, Roshan Ayyalasomayajula, Aditya Arun, Chenfeng Wu, and Dinesh Bharadia
[NSDI 2020]
BLoc: CSI-based accurate localization for BLE tags
Roshan Ayyalasomayajula, Deepak Vasisht, and Dinesh Bharadia
[CoNext 2018]
Spotfi: Decimeter level localization using wifi
Manikanta Kotaru, Kiran Joshi, Dinesh Bharadia, Sachin Katti
[Sigcomm 2015]
WiDeo: Fine-grained Device-free Motion Tracing using {RF} Backscatter
Kiran Joshi, Dinesh Bharadia, Manikanta Kotaru, Sachin Katti
[NSDI 2015]
Spoton: Indoor localization using commercial off-the-shelf wifi nics
Manikanta Kotaru, Kiran Joshi, Dinesh Bharadia, Sachin Katti
[IPSN 2015]
Team
“The strength of the team is each individual member. The strength of each member is the team.” –Phil Jackson
Advisor
Dinesh Bharadia
Principal Investigator, WCSNG
Associate Professor
Department of Electrical and Computer Engineering
University of California, San Diego
Ph.D. Mentors
Collaborations and Post Doctoral Researchers
Deepak Vasisht
Currently an Assistant Professor at University of Illinois, Urbana-Champagne.
deepakv [at] illinois.edu
Shunsuke Saruwatari (saru)
Visiting Scholar from Osaka University, Japan, started Jul 2022
ssaruwatari [at] ucsd.edu
Alumni
Chi Zhang
Postdoc in wireless networking and sensing. Ph.D. at Universityof Wisconsin, Madison
c4zhang [at] eng.ucsd.edu
Master’s Students
Sureel Shah
Master student since 2021
Yizheng Yu
Master student
Alumni MS students
2020
- Yunchieh (Zena) Chang (MS 2020) (Deep Learning and Indoor Localization)
- Sanatan Sharma (MS 2020) (Machine Learning) (Highlight: Mobicom’20) (Now at TuSimple, SD)
2019
- Shrivatsan Rajagopalan (MS 2019) (Localization) (Highlight: NSDI’20) (Now at Qualcomm, SD)
- Aravind Seetharaman (MS 2019) (Localization) (Highlight: NSDI’20) (Now at Qualcomm, SJ)
- Shreya Ganesaraman (MS 2019) (Localization) (Highlight: NSDI’20) (Now at Intel, SD)
Bachelors Students
Kanishka Roy
Undergrad student since 2020 (joined WCSNG in 2021)
Wenshuo Zang
Undergrad student (joined WCSNG in 2021)
Alumni BS students
2022
- Joel Bisarra (BS’22) (Robotics)
- Tyler Chang (BS’22) (Robotics) (Coauthor - ULoc at IMWUT’21)
2020
- Chenfeng Wu (BS’20, MS’21) (Localization) (Co-authored Mobicom’20, NSDI’20) (Now at Ford, Ann Arbor)
- Scott Zhao (BS 2020) (Localization) (Now M.S. at Columbia, NY) (Lead-author IMWUT’21)
UC San Diego Summer Research Internship Program (SRIP)
Undergraduate/ Masters students - apply to SRIP program here.
Summer 2020
- Minghui (Scott) Zhao (BS)
- Shivani Bhakta (BS)
- Tyler Chang (BS)
Summer 2019
- Chenfeng Wu (BS) (Robotics SLAM)
- Scott Zhao (BS) (VR tracking using Radar)
- Keshav Mittal (BS) (Localization)
International Summer Interns
Summer 2019
- Rushang Gupta [IITD] (Bluetooth localization)
- Aman Tiwari [IITD] (Phone SLAM)
Summer 2018
- Raghav Sonavane [IITKgp] (In-body communication) (Now at Sprinklr, India)