SPiDR: Ultra-low-power Acoustic Spatial Sensing for Micro-robot Navigation
Yang Bai (co-primary), Nakul Garg (co-primary), Nirupam Roy
Best paper award

VoiceFind: Noise-Resilient Speech Recovery in Commodity Headphones
Irtaza Shahid, Yang Bai, Nakul Garg, Nirupam Roy

Personal active soundfield control (PASCAL) framework
Shoken Kaneko, Irtaza Shahid, Nirupam Roy, Nail Gumerov, Ramani Duraiswami

Owlet: enabling spatial information in ubiquitous acoustic devices
Nakul Garg (co-primary), Yang Bai (co-primary), Nirupam Roy
Best demo award

Regularized spherical harmonics-domain spatial active noise cancellation in a reverberant room
Shoken Kaneko, Nirupam Roy, Nail Gumerov, Ramani Duraiswami

Enabling Self-defense in Small Drones
Nakul Garg, Nirupam Roy

Spying with Your Robot Vacuum Cleaner: Eavesdropping via Lidar Sensors
Sriram Sami, Yimin Dai, Sean Rui Xiang Tan, Nirupam Roy, Jun Han
Best poster runner-up award

Inaudible Acoustics: Techniques and Applications
Nirupam Roy
CSL Ph.D. thesis award, UIUC  

MUTE: Bringing IoT to Noise Cancellation
Sheng Shen, Nirupam Roy, Junfeng Guan, Haitham Hassanieh, Romit Roy Choudhury

Inaudible Voice Commands: The Long-Range Attack and Defense
Nirupam Roy, Sheng Shen, Haitham Hassanieh, Romit Roy Choudhury

BackDoor: Making Microphones Hear Inaudible Sounds
Nirupam Roy, Haitham Hassanieh, Romit Roy Choudhury
Best paper award   Audience choice award

Ripple II: Faster Communication through Physical Vibration
Nirupam Roy, Romit Roy Choudhury

Listening through a Vibration Motor
Nirupam Roy, Romit Roy Choudhury

Compressing Backoff in CSMA Networks
Mahanth K Gowda, Nirupam Roy, Romit Roy Choudhury, Srihari Nelakuditi

Ripple: Communicating through Physical Vibrations
Nirupam Roy, Mahanth K Gowda, Romit Roy Choudhury

I am a Smartphone and I can Tell my User’s Walking Direction
Nirupam Roy, He Wang, Romit Roy Choudhury
Outstanding MS thesis award

AccelPrint: Imperfections of Accelerometers Make Smartphones Trackable
Nirupam Roy, S. Dey (Co-primary), W. Xu, R. Roy Choudhury, S. Nelakuditi

Infrastructure Mobility: A What-if Analysis
Mahanth K Gowda, Nirupam Roy, Romit Roy Choudhury

Backing out of Linear Backoff in Wireless Networks
Mahanth K Gowda, Nirupam Roy, Romit Roy Choudhury, Srihari Nelakuditi

Poster: Ultra-low-power Acoustic Imaging
Yang Bai (co-primary), Nakul Garg (co-primary), Nirupam Roy

Demo: Microstructure-guided Spatial Sensing for Low-power IoT
Nakul Garg (co-primary), Yang Bai (co-primary), Nirupam Roy
Best demo award

Poster: Acoustic Sensing for Detecting Projectile Attacks on Small Drones
Nakul Garg, Nirupam Roy

Poster: LidarPhone: Acoustic Eavesdropping using a Lidar Sensor
Sriram Sami, Sean Rui Xiang Tan, Yimin Dai, Nirupam Roy, Jun Han
Best poster runner-up award

Poster: Networked Acoustics Around Human Ears
Sheng Shen, Nirupam Roy, Junfeg Guan, Haitham Hassanieh, Romit Roy Choudhury

Demo: Riding the Non-linearities to Record Ultrasound with Smartphones
Nirupam Roy, Haitham Hassanieh, Romit Roy Choudhury

Assessing Header Impacts in Soccer with Smartball
Theodore Stone et. al., Student Mentor: Nirupam Roy
Student research competition winner

Vibration: A new mode of communication
Nirupam Roy, Romit Roy Choudhury

Ripple: Communicating through Physical Vibration
Nirupam Roy, Romit Roy Choudhury
Google Mobile Faculty Summit 2015

Demo: I am a Smartphone and I can Tell my User’s Walking Direction
Nirupam Roy, He Wang, Romit Roy Choudhury

Leveraging Imperfections of Sensors for Fingerprinting Smartphones
Sanorita Dey, Nirupam Roy, Wenyuan Xu, Srihari Nelakuditi
Best poster runner-up award

Communicating through physical vibration
Nirupam Roy, Romit Roy Choudhury, Mahanth K Gowda
Patent number: US 9608848 B2,   March 28, 2017

Unsupervised indoor localization and heading directions estimation
Romit Roy Choudhury, He Wang, Nirupam Roy, Souvik Sen, et. al.
Patent number: US 20150281910 A1,   October 1, 2015

Best paper award, MobiSys 2022
SPiDR, an ultra-low-power spatial sensing system for miniature mobile robots, wins best paper award at MobiSys 2022.

Best demo award, MobiSys 2021
Owlet, the low-power and miniaturized spatial sensing system, wins best demo award at MobiSys 2021.

Best poster runner-up award, SenSys 2020
LidarPhone wins best poster runner-up award at SenSys 2020. LidarPhone shows how the lidar sensor can be exploited to extract traces of spoken words and uncovers an acoustic eavesdropping threat.

CSL Ph.D. Thesis Award, 2019
The thesis “Inaudible Acoustics: Techniques and Applications” wins the CSL Ph.D. thesis award 2019 at UIUC.

Best paper award at MobiSys, 2017
“BackDoor: Making Microphones Hear Inaudible Sounds” wins the best paper award and the audience-choice award at MobiSys 2017.

Qualcomm Innovation Fellowship (QInF) finalist, 2016
“The QInF program is focused on recognizing, rewarding, and mentoring innovative PhD students across a broad range of technical research areas, based on Qualcomm’s core values of innovation, execution and teamwork.”

Bahl fellowship as outstanding graduate student, 2015-2017
“The fellowship was established by Dr. Lalit R. Bahl and Kavita Kinra and will provide graduate fellowships to students in the Electrical and Computer Engineering Department, UIUC”

Valkenburg award for outstanding research, 2015
“Mac Van Valkenburg symbolizes the highest quality of engineering education in Illinois and, indeed, in the country. The award, which is given annually to one or two outstanding PhD candidates in ECE, UIUC.”

Outstanding thesis award for MS thesis, 2013
The MS thesis was selected for the outstanding thesis award 2013 at the University of South Carolina, Columbia.

Best poster/demo runner-up at HotMobile, 2013
The poster on smartphone fingerprinting (AccelPrint) won the second prize at the HotMobile 2013, the International Workshop on Mobile Computing Systems and Applications.

Best undergraduate thesis of the institute, 2007
The undergraduate thesis on the robotic navigation assistant was selected as the best undergraduate thesis of the year 2007 at the Indian Institute of Engineering, Science, and Technology (IIEST, formerly B.E.College), Shibpur, India

10th rank in Secondary Examination, 2001
Placed 10th among around 700,000 examinees, according to the merit list published by 'West Bengal Board of Secondary Education', India.

AccelPrint

BackDoor

VibraPhone