2023

RoSS: Rotation-induced Aliasing for Audio Source Separation acoustics algorithms
Hyungjoo Seo, Sahil Bhandary Karnoor, and Romit Roy Choudhury
ICRA, Jan 2023.

2022

Learning to Separate Voices by Spatial Regions demo acoustics machine learning
Zhongweiyang Xu, Romit Roy Choudhury
ICML, Jul 2022.

PoseKernelLifter: Metric Lifting of 3D Human Pose Using Sound acoustics machine learning mobile
Zhijian Yang, Xiaoran Fan, Volkan Isler, Hyun Soo Park
IEEE/CVF CVPR, Jun 2022.

Enabling IoT Self-Localization Using Ambient 5G Signals wireless mobile
Suraj Jog, Junfeng Guan, Sohrab Madani,Ruochen Lu, Songbin Gong, Deepak Vasisht, Haitham Hassanieh
NSDI, Apr 2022.

2021

Estimating Angle of Arrival (AoA) of multiple Echoes in a Steering Vector Space acoustics algorithm
Yu-Lin Wei, Romit Roy Choudhury
arXiv, Sep 2021.

Inferring Facing Direction from Voice Signals acoustics algorithms
Yu-Lin Wei, Rui Li, Abhinav Mehrotra, Romit Roy Choudhury, Nic Lane
arXiv, Sep 2021.

Personalizing Head Related Transfer Functions for Earables acoustics mobile
Zhijian Yang, Romit Roy Choudhury [slides]
ACM SIGCOMM, Aug 2021.

Angle-of-arrival (AOA) Factorization in Multipath Channels acoustics algorithms
Yu-Lin Wei, Romit Roy Choudhury
IEEE ICASSP, June 2021.

Practical Null Steering in Millimeter Wave Networks wireless
Sohrab Madani, Suraj Jog, Jesus O. Lacruz, Joerg Widmer, Haitham Hassanieh [slides]
NSDI, April 2021.

One Protocol to Rule Them All: Deep Reinforcement Learning Aided MAC for Wireless Network-on-Chips machine learning wireless
Suraj Jog, Zikun Liu, Antonio Franques, Vimuth Fernando, Sergi Abadal, Josep Torrellas, Haitham Hassanieh [slides]
NSDI, April 2021.

Efficient Wideband Spectrum Sensing Using MEMS Acoustic Resonators wireless
Junfeng Guan, Jitian Zhang, Ruochen Lu, Hyungjoo Seo, Jin Zhou, Songbin Gong, Haitham Hassanieh [slides]
NSDI, April 2021.

Earable Computing: A New Area to Think About acoustics mobile
Romit Roy Choudhury
ACM HotMobile, Feb 2021.

3D Imaging Using Millimeter Wave 5G Signal Reflections wireless
Junfeng Guan, Arun Paidimarri, Alberto Valdes-Garcia, Bodhisatwa Sadhu
IEEE TMTT, Jun 2021.

2020

Voice Localization Using Nearby Wall Reflections acoustics algorithms
Sheng Shen, Daguan Chen, Yu-Lin Wei, Zhijian Yang, Romit Roy Choudhury
ACM MobiCom, September 2020. [slides]

Ear-AR: Indoor Acoustic Augmented Reality on Earphones acoustics mobile
Zhijian Yang, Yu-Lin Wei, Sheng Shen, Romit Roy Choudhury
ACM MobiCom, September 2020. [slides]

EarSense: Earphones as a Teeth Activity Sensor acoustics mobile
Jay Prakash, Zhijian Yang, Yu-Lin Wei, Haitham Hassanieh, Romit Roy Choudhury
ACM MobiCom, September 2020. [slides]

Understanding and Embracing the Complexities of the Molecular Communication Channel in Liquids wireless
Jiaming Wang, Dongyin Hu, Chirag Shetty, Haitham Hassanieh [slides]
ACM MobiCom, September 2020.

Through Fog High Resolution Imaging Using Millimeter Wave Radar machine learning wireless
Junfeng Guan, Sohrab Madani, Suraj Jog, Haitham Hassanieh, Saurabh Gupta
IEEE/CVF CVPR, June 2020.

3D Imaging using mmWave 5G Signals wireless
Junfeng Guan, Arun Paidimarri, Bodhisatwa Sadhu, Alberto Valdes-Garcia
RFIC, June 2020.

2019

Many-to-Many Beam Alignment in Millimeter Wave Networks wireless
Suraj Jog, Jiaming Wang, Junfeng Guan, Thomas Moon, Haitham Hassanieh, Romit Roy Choudhury
NSDI, February 2019. [slides]

TrackIO: Tracking First Responders Inside-Out mobile wireless
Ashutosh Dhekne, Ayon Chakraborty, Karthikeyan Sundaresan, Sampath Rangarajan
NSDI, February 2019. [slides]

Online Millimeter Wave Phased Array Calibration Based on Channel State Information wireless
Thomas Moon, Junfeng Guan, and Haitham Hassanieh
IEEE VLSI Testing Symposium, April 2019.

STEAR: Robust Step Counting from Earables mobile
Jay Prakash, Zhijian Yang, Yu-Lin Wei, Romit Roy Choudhury
Earcomp (Workshop with Ubicomp), September 2019. [slides]

Thesis

Wireless Sensing: Material Identification and Localization
Ashutosh Dhekne

Actively Exploiting Propagation Delay for Acoustic Systems
Sheng Shen

2018

Ghostbuster: Detecting the Presence of Hidden Eavesdroppers wireless
Anadi Chaman, Jiaming Wang, Jiachen Sun, Haitham Hassanieh, Romit Roy Choudhury
ACM MobiCom, October 2018. [slides]

Closing the Gaps in Inertial Motion Tracking mobile
Sheng Shen, Mahanth Gowda, Romit Roy Choudhury
ACM MobiCom, October 2018. [slides]

MUTE: Bringing IoT to Noise Cancellation acoustics mobile wireless
Sheng Shen, Nirupam Roy, Junfeng Guan, Haitham Hassanieh, Romit Roy Choudhury
ACM SIGCOMM, August 2018. [slides] [video]

Fast Millimeter Wave Beam Alignment wireless
Haitham Hassanieh, Omid Abari, Michael Rodriguez, Mohammed Abdelghany, Dina Katabi, Piotr Indyk
ACM SIGCOMM, August 2018. [slides]

LiquID: A Wireless Liquid IDentifier mobile wireless
Ashutosh Dhekne, Mahanth Gowda, Yixuan Zhao, Haitham Hassanieh, Romit Roy Choudhury
ACM MobiSys, June 2018. [slides]

Inaudible Voice Commands: The Long-Range Attack and Defense mobile wireless
Nirupam Roy, Sheng Shen, Haitham Hassanieh, Romit Roy Choudhury
NSDI, April 2018. [slides] [video]

If WiFi APs Could Move: A Measurement Study mobile
Ashutosh Dhekne, Mahanth Gowda, Romit Roy Choudhury, Srihari Nelakuditi
IEEE Transactions on Mobile Computing, 2018.

RF Filters with Periodic Passbands for Sparse Fourier Transform-Based Spectrum Sensing wireless
Ruochen Lu, Tomas Manzaneque, Yansong. Yang, Jin Zhou, Haitham Hassanieh, Songbin Gong
Journal of Microelectromechanical Systems, 2018.

Technical perspective: Is your WiFi a sensor? mobile wireless
Romit Roy Choudhury
Communications of the ACM, 2018.

Posters and Demos
Enabling Dense Spatial Reuse in mmWave Networks wireless
Poster, ACM SIGCOMM 2018
Winner of ACM SIGCOMM 2018 Student Research Competition (SRC)

Networked Acoustics Around Human Ears mobile wireless
Poster, ACM MobiCom 2018

Magazines
P2PLoc: Peer-to-Peer Localization of Fast-Moving Entities mobile wireless
Ashutosh Dhekne, Umberto J. Ravaioli, Romit Roy Choudhury
IEEE Computer, October 2018.

Thesis

Inaudible Acoustics: Techniques and Applications
Nirupam Roy

2017

BackDoor: Making Microphones Hear Inaudible Sounds mobile wireless
Nirupam Roy, Haitham Hassanieh, Romit Roy Choudhury
ACM MobiSys, June 2017. [slides] [video]
Best Paper Award

Bringing IoT to Sports Analytics mobile wireless
Mahanth Gowda, Ashutosh Dhekne, Sheng Shen, Romit Roy Choudhury, Xue Yang, Lei Yang, A. Essanian, S. Golwalkar
NSDI, March 2017. [slides]

Extending Cell Tower Coverage through Drones wireless
Ashutosh Dhekne, Mahanth Gowda, Romit Roy Choudhury
ACM HotMobile, February 2017. [slides]

Posters and Demos
Riding the Non-linearities to Record Ultrasound with Smartphones mobile wireless
Demo, ACM MobiSys 2017

Magazines
IoT Platform for Sports Analytics mobile wireless
Mahanth Gowda, Ashutosh Dhekne, Sheng Shen, Romit Roy Choudhury, Xue Yang, Lei Yang, A. Essanian, S. Golwalkar
ACM GetMobile, December 2017.

Thesis

Motion Tracking Problems in Internet of Things (IOT) and Wireless Networking
Mahanth Gowda

2016

Millimeter Wave Communications: from Point-to-Point Links to Agile Network Connections wireless
Haitham Hassanieh, Omid Abari, Michael Rodriguez, Dina Katabi
ACM HotNets, November 2016.

Tracking Drone Orientation with Multiple GPS Receivers mobile wireless
Mahanth Gowda, Justin Manweiler, Ashutosh Dhekne, Romit Roy Choudhury, Justin D. Weisz
ACM MobiCom, October 2016. [slides]

I am a Smartwatch and I can Track my User’s Arm mobile
Sheng Shen, He Wang, Romit Roy Choudhury
ACM MobiSys, June 2016. [slides]

Listening through a Vibration Motor mobile
Nirupam Roy, Romit Roy Choudhury
ACM MobiSys, June 2016. [slides]

Ripple II: Faster Communications through Physical Vibrations mobile wireless
Nirupam Roy, Romit Roy Choudhury
NSDI, March 2016. [slides]

Low Bandwidth Offload for Mobile AR mobile wireless
Puneet Jain, Justin Manweiler, Romit Roy Choudhury
ACM CoNEXT, December 2016. [slides]

The Case for Robotic Wireless Networks wireless
Mahanth Gowda, Ashutosh Dhekne, Romit Roy Choudhury
WWW, April 2016. [slides]

Compressing Backoff in CSMA Networks wireless
Mahanth Gowda, Nirupam Roy, Romit Roy Choudhury, Srihari Nelakuditi
IEEE ICNP, November 2016.

AutoLabel: Labeling Places from Pictures and Websites mobile
Rufeng Meng, Sheng Shen, Romit Roy Choudhury, Srihari Nelakuditi
ACM UbiComp, September 2016. [slides]

Posters and Demos
A Millimeter Wave Software Defined Radio Platform with Phased Arrays wireless
Poster, ACM MobiCom 2016
Winner of ACM MobiCom 2016 Student Research Competition (SRC)

Cell Tower Extension through Drones wireless
Poster, ACM MobiCom 2016
Runners Up at ACM MobiCom 2016 Student Research Competition (SRC)

Arm Posture Tracking Using a Smartwatch mobile
Extended Abstract, ACM MobiSys 2016 PhD Forum

Thesis

Applying Multimodal Sensing to Human Location Estimation
He Wang

2015

MoLe: Motion Leaks through Smartwatch Sensors mobile
He Wang, Ted Tsung-Te Lai, Romit Roy Choudhury
ACM MobiCom, September 2015. [slides] [video] [presentation]

Experiences with eNav: A Low-power Vehicular Navigation System mobile
Shaohan Hu, Lu Su, Shen Li, Shiguang Wang, Chenji Pan, Siyu Gu, Md Tanvir Amin, Hengchang Liu, Suman Nath, Romit Roy Choudhury, Tarek F. Abdelzaher
ACM UbiComp, September 2015.

Ripple: Communicating through Physical Vibrations mobile wireless
Nirupam Roy, Mahanth Gowda, Romit Roy Choudhury
NSDI, May 2015. [slides]

Securing RFIDs by Randomizing the Modulation and Channel mobile wireless
Haitham Hassanieh, Jue Wang, Dina Katabi, and Tadayoshi Kohno
NSDI, May 2015. [slides]

OverLay: Practical Mobile Augmented Reality mobile wireless
Puneet Jain, Justin Manweiler, Romit Roy Choudhury
ACM MobiSys, May 2015. [slides] [video demo] [presentation]

Visually Fingerprinting Humans without Face Recognition mobile
He Wang, Xuan Bao, Romit Roy Choudhury, Srihari Nelakuditi
ACM MobiSys, May 2015. [slides]

Indoor Localization: Experiences and Lessons Learnt mobile wireless
Dimitrios Lymberopoulos, Jie Liu, Souvik Sen, Xue Yang, Romit Roy Choudhury, Vlado Handziski
ACM/IEEE IPSN, April 2015.

ActivPass: Your Daily Activity is Your Password mobile
Sourav Dandapat, Swadhin Pradhan, Bivas Mitra, Romit Roy Choudhury, Niloy Ganguly
ACM CHI, April 2015. [slides]

Matching Physical Sites with Web Sites for Semantic Localization mobile
Rufeng Meng, Sheng Shen, Romit Roy Choudhury, Srihari Nelakuditi
Workshop on Physical Analytics, May 2015. [slides]

SemanticSLAM: Using Environment Landmarks for Unsupervised Indoor Localization mobile wireless
H. Abdelnasir, R. Samir, A. Elgohary, M. Alzantot, H. Wang, S. Sen, R. Roy Choudhury, M. Youssef
IEEE Transactions on Mobile Computing, 2015.

Fast Multi-dimensional NMR Acquisition and Processing Using the Sparse FFT algorithms
Haitham Hassanieh, Maxim Mayzel, Lixin Shi, Dina Katabi, and Vladislav Yu Orekhov
Journal of Biomolecular NMR, Springer, 2015.

Posters and Demos
User Location Fingerprinting at Scale mobile wireless
Poster, ACM MobiCom 2015
Runners Up at ACM MobiCom 2015 Student Research Competition (SRC)

OverLay: Practical Mobile Augmented Reality mobile wireless
Demo, ACM HotMobile 2015
Awarded Best Demo

Thesis

Practical Architectures for Fused Visual and Inertial Mobile Sensing
Puneet Jain

2014

Light Field Reconstruction Using Sparsity in the Continuous Fourier Domain algorithms
Lixin Shi, Haitham Hassanieh, Abe Davis, Dina Katabi and Fredo Durand
ACM SIGGRAPH, November 2014.

High-Throughput Implementation of a Million-Point Sparse Fourier Transform algorithms
Abhinav Agarwal, Haitham Hassanieh, Omid Abari, Ezz Hamed, Dina Katabi, and Arvind
IEEE FPL, September 2014.

Scalable Social Analytics for Live Viral Event Prediction wireless
Puneet Jain, Justin Manweiler, Arup Acharya, Romit Roy Choudhury
ICWSM, June 2014.

I am a Smartphone and I can Tell my User’s Walking Direction mobile
Nirupam Roy, He Wang, Romit Roy Choudhury
ACM MobiSys, June 2014. [slides]

GHz-Wide Sensing and Decoding Using the Sparse Fourier Transform algorithms wireless
Haitham Hassanieh, Lixin Shi, Omid Abari, Ezzeldin Hamed, Dina Katabi
IEEE Infocom, April 2014. [slides]

Correlation Chemical Shift Imaging with Sparse-FFT and Real-time Motion and Shim Correction algorithms
Ovidiu Andronesi, Lixin Shi, Haitham Hassanieh, Wolfgang Bogner, Borjan Gagoski, Aaron Hess, Dylan Tisdall, Andre van der Kouwe, Dina Katabi, and Elfar Adalsteinsson
ENC, March 2014. [poster]

AccelPrint: Imperfections of Accelerometers Make Smartphones Trackable mobile
Sanorita Dey, Nirupam Roy, Wenyuan Xu, Romit Roy Choudhury, Srihari Nelakuditi
NDSS, February 2014. [slides]

A 0.75 Million-Point Fourier Transform Chip for Frequency-Sparse Signals algorithms
Omid Abari, Ezz Hamed, Haitham Hassanieh, Abhinav Agarwal, Dina Katabi, Anantha Chandrakasan, and Vladimir Stojanovic
ISSCC, February 2014. [slides]

I am a Smartphone and I Know My User is Driving mobile
Hon Chu, Vijay Raman, Jeffrey Shen, Aman Kansal, Victor Bahl, Romit Roy Choudhury
COMSNETS, January 2014. (Invited Paper)

Injecting Life into Toys mobile
Songchun Fan, Hyojeong Shin, Romit Roy Choudhury
ACM HotMobile, February 2014. [slides]

Infrastructure Mobility: A What-if Analysis wireless
Mahanth Gowda, Nirupam Roy, Romit Roy Choudhury
ACM HotNets, October 2014. [slides]

Backing out of Linear Backoff in Wireless Networks wireless
Mahanth Gowda, Nirupam Roy, Romit Roy Choudhury, Srihari Nelakuditi
ACM HotWireless, September 2014.

D-BigBand: Sensing GHz-Wide Non-Sparse Spectrum on Commodity Radios wireless
Lixin Shi, Haitham Hassanieh and Dina Katabi
ACM S3 Workshop, September 2014.

Posters and Demos
Unsupervised Indoor Localization (UnLoc): Beyond the Prototype mobile
Video, ACM MobiSys 2014

Real-time Object Tagging and Retrieval mobile
Demo, ACM MobiSys 2014

I am a Smartphone and I can Tell my Users Walking Direction mobile
Demo, ACM MobiSys 2014

Recognizing Humans without Face Recognition mobile
Demo, ACM MobiSys 2014

2013

FOCUS: Clustering Crowdsourced Videos by Line-of-Sight mobile wireless
Puneet Jain, Justin Manweiler, Arup Acharya, Kirk Beaty
ACM SenSys, November 2013. [slides]

Sample-Optimal Average-Case Sparse Fourier Transform in Two Dimensions algorithms
Badih Ghazi, Haitham Hassanieh, Piotr Indyk, Dina Katabi, Eric Price, Lixin Shi
Allerton, October 2013. [slides]

If You See Something, Swipe towards It: Crowdsourced Event Localization mobile wireless
Wentao Ouyang, Animesh Srivastava, Romit Roy Choudhury, Merideth Addicott, Francis McClernon
ACM UbiComp, September 2013. [slides]

Your Reactions Suggest You Like the Movie: Automatic Content Rating using Reaction Sensing mobile
Xuan Bao, Songchun Fan, Romit Roy Choudhury, Alex Varshavsky, Kevin Li
ACM UbiComp, September 2013. [slides]
Best Paper Honorable Mention

Cooperative Packet Recovery in Enterprise WLANs wireless
Mahanth Gowda, Souvik Sen, Romit Roy Choudhury, Sung-Ju Lee
IEEE Infocom, April 2013. [slides]

QuickSense: Fast and Energy Efficient Channel Sensing for Dynamic Spectrum Access wireless
Sungro Yoon, Erran Li, Soung Liew, Romit Roy Choudhury, Injong Rhee, Kun Tan
IEEE Infocom, April 2013.

Predicting Length of Stay at WiFi Hotspots mobile wireless
Justin Manweiler, Naveen Santhapuri, Romit Roy Choudhury, Srihari Nelakuditi
IEEE Infocom, April 2013. [slides]

DataSpotting: Exploiting Naturally Clustered Mobile Devices to Offload Cellular Traffic mobile
Xuan Bao, Yin Lin, Uichin Lee, Ivica Rimac,Romit Roy Choudhury
IEEE Infocom, (Mini Conference), April 2013.

MRS Sparse-FFT: Reducing Acquisition Time and Artifacts for In Vivo 2D Correlation Spectroscopy algorithms
Lixin Shi, Ovidiu Andronesi, Haitham Hassanieh, Badih Ghazi, Dina Katabi, and Elfar Adalsteinsson
ISMRM, April 2013. [poster]

Shift Finding in Sublinear Time algorithms
Alexander Andoni, Haitham Hassanieh, Piotr Indyk, and Dina Katabi
SODA, January 2013. [slides]

The Case for Psychological Computing mobile
Xuan Bao, Mahanth Gowda, Ratul Mahajan, Romit Roy Choudhury
ACM HotMobile, February 2013.

Recognizing Humans without Face Recognition mobile
He Wang, Xuan Bao, Romit Roy Choudhury, Srihari Nelakuditi
ACM HotMobile, February 2013. [slides]

TagSense: Automatically Captioning Pictures using Smartphones mobile
Chuan Qin, Xuan Bao, Romit Roy Choudhury, Srihari Nelakuditi
IEEE Transactions on Mobile Computing, 2013.

A Novel Solution to the Energy Hole Problem in Sensor Networks wireless
Mohamad Watfa, Haitham Al Hassaneih, and Samir Selman
Journal of Network and Computer Applications, 2013.

Posters and Demos
FOCUS: Clustering Crowdsourced Videos by Line-of-Sight mobile wireless
Demo, ACM SenSys 2013

Thesis

Enabling Context-Awareness in Mobile Systems via Multi-Modal Sensing
Xuan Bao

2012

Helping Mobile Apps Bootstrap with Fewer Users mobile
Xuan Bao, Aman Kansal, Romit Roy Choudhury, David Chu, Alec Wolman, Victor Bahl
ACM UbiComp, Sep 2012.

Faster GPS Via the Sparse Fourier Transform mobile
Haitham Hassanieh, Fadel Adib, Dina Katabi, and Piotr Indyk
ACM MobiCom, August 2012. [slides]

Efficient and Reliable Low-Power Backscatter Networks wireless
Jue Wang, Haitham Hassanieh, Dina Katabi, and Piotr Indyk
ACM SIGCOMM, August 2012. [slides] [poster]

Spot Localization using PHY Layer Information wireless
Souvik Sen, Bozidar Radunovic, Romit Roy Choudhury
ACM MobiSys, June 2012.

No Need to War-Drive: Unsupervised Indoor Localization mobile
He Wang, Souvik Sen, Ahmed Elgohary, M. Farid, Moustafa Youssef, Romit Roy Choudhury
ACM MobiSys, June 2012. [slides]

Satellites in Our Pockets: An Object Positioning System using Smartphones mobile
Justin Manweiler, Puneet Jain, Romit Roy Choudhury
ACM MobiSys, June 2012. [slides]

TapPrints: Your Finger Taps have Fingerprints mobile
Emiliano Miluzzo, Alex Varshavsky, Suhrid Balakrishnan, Romit Roy Choudhury
ACM MobiSys, June 2012.

Nearly Optimal Sparse Fourier Transform algorithms
Haitham Hassanieh, Piotr Indyk, Dina Katabi, and Eric Price
STOC, May 2012. [slides] [slides]

RxIP: Monitoring the Health of Home Wireless Networks wireless
Justin Manweiler, Peter Franklin, Romit Roy Choudhury
IEEE Infocom, March 2012. [slides]

Simple and Practical Algorithm for Sparse Fourier Transform algorithms
Haitham Hassanieh, Piotr Indyk, Dina Katabi, and Eric Price
SODA, January 2012. [slides]

SpinLoc: Spin Once to Know Your Location mobile
Souvik Sen, Romit Roy Choudhury, Srihari Nelakuditi
ACM HotMobile, February 2012.

CSMA/CN: Carrier Sense Multiple Access with Collision Notificatio wireless
S. Sen, R. Roy Choudhury, S. Nelakuditi
IEEE/ACM Transactions on Networking, 2012.

Successive Interference Cancellation: Carving Out MAC Layer Opportunities wireless
Souvik Sen, Naveen Santhapuri, Romit Roy Choudhury, Srihari Nelakuditi
IEEE Transactions on Mobile Computing, 2012. [slides]

Avoiding the Rush Hours: WiFi Energy Management via Traffic Isolation mobile wireless
J. Manweiler, R. Roy Choudhury
IEEE Transactions on Mobile Computing, 2012.

Posters and Demos
Saving Power for Mobile Phones via Partial Wi-Fi Scanning mobile wireless
Poster, ACM MobiSys 2012

Distributed Content Storage for Just-in-Time Streaming wireless
Poster, ACM SIGCOMM 2012

No Need to War-Drive: Unsupervised Indoor Localization mobile
Demo, ACM MobiSys 2012

Satellites in Our Pockets: An Object Positioning System using Smartphones mobile
Demo, ACM MobiSys 2012

Lower the bar for app developers: Supporting Collaborative Sensing Applications mobile
Poster, ACM MobiSys 2012

Thesis

Building Blocks for Tomorrow's Mobile App Store
Justin Manweiler

2011

No Time to CountDown: Migrating Backoff to the Frequency Domain wireless
Souvik Sen, Romit Roy Choudhury, Srihari Nelakuditi
ACM MobiCom, September 2011. [slides]

They Can Hear Your Heartbeats: Non-Invasive Security for Implanted Medical Devices wireless
Shyamnath Gollakota, Haitham Hassanieh, Ben Ransford, Dina Katabi and Kevin Fu
ACM SIGCOMM, August 2011. [slides]
Best Paper Award

Avoiding the Rush Hours: WiFi Energy Management for Mobile Devices mobile
Justin Manweiler, Romit Roy Choudhury
ACM MobiSys, June 2011. [slides]
Best Paper Nominee, Invited to IEEE TMC Journal

TagSense: A Smartphone based Approach to Automatic Image Tagging mobile
Chuan Qin, Xuan Bao, Romit Roy Choudhury, Srihari Nelakuditi
ACM MobiSys, June 2011. [slides]

Using Mobile Phones to Write in Air mobile
Sandip Agrawal, Ionut Constandache, Sharavan Gaonkar, Romit Roy Choudhury
ACM MobiSys, June 2011.

SwitchBoard: A Matchmaking System for Multiplayer Mobile Games mobile
Justin Manweiler, Sharad Agrawal, Ming Zhang, Romit Roy Choudhury, Victor Bahl
ACM MobiSys, June 2011. [slides]

PeerCast: Improving Link Layer Multicast through Cooperative Relaying wireless
Jie Xiong, Romit Roy Choudhury
IEEE Infocom, April 2011.

The Case for Context-Aware Compression mobile
Xuan Bao, T. Narayan, A. Sani, W. Richter, R. Roy Choudhury, L. Zhong, M. Satyanarayanan
ACM Hotmobile, February 2011.

Precise Indoor Localization using PHY Information wireless
Souvik Sen, Bozidar Radunovic, Romit Roy Choudhury, Tom Minka
ACM Hotnets, November 2011.

LinkSense: Beyond Wireless Carrier Sensing wireless
Naveen Santhapuri, Romit Roy Choudhury, Srihari Nelakuditi
IEEE Communication Letters, February 2011. [slides]

Shuffle: Transmission Reordering in Wireless Networks wireless
J. Manweiler, N. Santhapuri, S. Sen, R. Roy Choudhury, S. Nelakuditi, K. Munagala
IEEE/ACM Transactions on Networking, 2011. [slides]

Smart Association Control In Wireless Mobile Environment Using Max-Flow wireless
Sourav Dandapat, Bivas Mitra, Romit Roy Choudhury, Niloy Ganguly
IEEE/ACM Transactions on Network and Service Management, 2011. [slides]

Multi-Hop Wireless Energy Transfer in WSNs wireless
Mohamad Watfa, Samir Selman, and Haitham Al Hassaneih
IEEE Communication Letters, 2011.

Posters and Demos
Avoiding the Rush Hours, WiFi Energy Management via Traffic Isolation wireless
Demo, ACM MobiSys 2011
Awarded Demo Runner Up

Precise Indoor Localization with PHY Layer Information wireless
Poster, ACM MobiSys 2011

You Driving? Talk to You Later mobile
Poster, ACM MobiSys 2011
Awarded Best Poster

TagSense - Smartphone-based Approach to Automatic Image Tagging mobile
Demo, ACM MobiSys 2011

Sniffing Traffic to Measure User Attention in a Conference mobile wireless
HotPlanet Workshop Data Contest (held with ACM MobiSys 2011)
Awarded Third Prize

How to Convince Your Dean that You are a Good Researcher misc
ACM Sigmobile Computer Communications Review (MC2R), Aug 2011.

2010

"Did You See Bob?": Human Localization using Mobile Phones mobile
Ionut Constandache, Xuan Bao, Martin Azizyan, Romit Roy Choudhury
ACM MobiCom, September 2010.

CSMA/CN: Carrier Sense Multiple Access with Collision Notification wireless
Souvik Sen, Romit Roy Choudhury, Srihari Nelakuditi
ACM MobiCom, September 2010. [slides]

SourceSync: A Distributed Wireless Architecture for Exploiting Sender Diversity wireless
Hariharan Rahul, Haitham Hassanieh, and Dina Katabi
ACM SIGCOMM, September 2010. [slides]

MoVi: Mobile Phone based Video Highlights via Collaborative Sensing mobile
Xuan Bao, Romit Roy Choudhury
ACM MobiSys, June 2010. [slides]

Sensor Assisted Wireless Communication mobile wireless
Naveen Santhapuri, Justin Manweiler, Souvik Sen, Xuan Bao, R. Roy Choudhury, S. Nelakuditi
IEEE LANMAN (Invited Paper), May 2010. [slides]

AccuRate: Constellation Based Rate Estimation in Wireless Networks wireless
Souvik Sen, Naveen Santhapuri, Romit Roy Choudhury, Srihari Nelakuditi
NSDI, April 2010. [slides]

Towards Mobile Phone Localization without War-Driving mobile
Ionut Constandache, Romit Roy Choudhury, Injong Rhee
IEEE Infocom, March 2010.

Listen (on the Frequency Domain) Before You Tal wireless
Souvik Sen, Romit Roy Choudhury, Srihari Nelakuditi
ACM Hotnets, October 2010.

Successive Interference Cancellation: A Back-of-the-Envelope Perspective wireless
Souvik Sen, Naveen Santhapuri, Romit Roy Choudhury, Srihari Nelakuditi
ACM Hotnets, October 2010.

Modeling Broadcasting using Directional Antennas in DTNs as an Epidemic Dynamics wireless
F. Peruani, A. Maiti, S. Sadhu, H. Chate, R. Roy Choudhury, N. Ganguly
IEEE JSAC (Journal on Sel. Areas of Comm.), 2010.

P2DAP: Detecting Sybil Attacks in Vehicular Ad Hoc Networks wireless
Tong Zhou, Romit Roy Choudhury, Krish Chakrabarty, Peng Ning
IEEE JSAC (Journal on Sel. Areas of Comm.), 2010.

Posters and Demos
Listen Before You Talk, But on the Frequency Domain wireless
Poster, ACM MobiCom 2010

Fair Bandwidth Allocation in Wireless Network Using Max-Flow wireless
Poster, ACM Sigcomm 2010

Sensor Assisted Wireless Communications mobile wireless
Poster, ACM MobiSys 2010

PHY Assisted Energy Management in Wireless Networks wireless
Poster, ACM MobiSys 2010

DataSpots: Offloading Cellular Traffic via Managed P2P Transfers mobile wireless
Poster, ACM MobiCom 2010

2009

Order Matters: Transmission Reordering in Wireless Networks wireless
Justin Manweiler, Naveen Santhapuri, Souvik Sen, Romit Roy Choudhury, Srihari Nelakuditi, Kamesh Munagala
ACM MobiCom, September 2009. [slides]

SurroundSense: Mobile Phone Localization Via Ambience Fingerprinting mobile
Martin Azizyan, Ionut Constandache, Romit Roy Choudhury
ACM MobiCom, September 2009. [slides]

Hiding Stars with Fireworks: Location Privacy through Camouflage mobile
Joseph Meyerowitz, Romit Roy Choudhury
ACM MobiCom, September 2009. [slides]

VUPoints: Collaborative Sensing and Video Recording through Mobile Phones mobile
Xuan Bao, Romit Roy Choudhury
ACM MobiHeld (with ACM Sigcomm) August, 2009 [slides]

PhonePoint Pen: Using Mobile Phones to Write in Air mobile
Sandip Agrawal, Ionut Constandache, Shravan Gaonkar, Romit Roy Choudhury
ACM MobiHeld (with ACM Sigcomm) August, 2009 Winner of Hoffmann Krippner Award

Stereosight: A Package for Viewing and Creating Stereogram Images misc
Haitham Al-Hassanieh, Amer Chamseddine, and Hassane Slaibi
FEASC, May, 2009. Best Undergraduate Paper Award

EnLoc: Energy Efficient Localization for Mobile Phones mobile
Ionut Constandache, Shravan Gaonkar, Matt Sayler, Romit Roy Choudhury, Landon Cox
IEEE Infocom mini-conference, April, 2009.

Energy-efficient Localization Via Personal Mobility Profiling mobile
Ionut Constandache, Shravan Gaonkar, Matt Sayler, Romit Roy Choudhury, Landon Cox
MobiCase, (Invited paper), October 2009.

Realtime Location Privacy Via Mobility Prediction: Creating Confusion at Crossroads mobile
Joseph Meyerowitz, Romit Roy Choudhury
ACM Hotmobile, February, 2009.

Breaking Away from Collision Avoidance: Towards Collision Detection in Wireless Networks wireless
Souvik Sen, Naveen Santhapuri, Romit Roy Choudhury, Srihari Nelakuditi
ACM Hotnets, October 2009.

Posters and Demos
The Wired Internet as a Control Channel for Residential Wireless LANs wireless
Poster, ACM MobiCom 2009 SRC

Rethinking Collisions in Wireless Networks wireless
Poster, ACM MobiCom 2009

SurroundSense: Mobile Phone Localization Using Ambient Sound and Light mobile
Ext. Abstract, ACM MC2R
Winner of ACM Mobicom 2008 Student Research Competition (SRC)

>Highlights: Event Coverage in Mobile Social Networks mobile wireless
Poster, ACM MobiCom 2009 SRC
Runners Up at ACM MobiCom 2009 Student Research Competition (SRC)

2008

Link Layer Multicast using Smart Antennas: No Client Left Behind wireless
Souvik Sen, Xiong Jie, Rahul Ghosh, Romit Roy Choudhury
IEEE ICNP, October, 2008. [slides]

AAMPL: Accelerometer Augmented Mobile Phone Localization mobile
Andrew Offstad, Emmett Nicholas, Rick Szcodronski, Romit Roy Choudhury
ACM MELT, (with MobiCom 08), September, 2008. [slides]

Micro-Blog: Sharing and Querying Content through Mobile Phones and Social Participation mobile
Shravan Gaonkar, Jack Li, Romit Roy Choudhury, Landon Cox, Al Schmidt
ACM MobiSys, June 2008. [slides]

Message in Message (MIM): A Case for Reordering Transmissions in Wireless Networks wireless
N. Santhapuri, J. Manweiler, S. Sen, R. Roy Choudhury, S. Nelakuditi, K. Munagala
ACM Hotnets, October, 2008.

Aggregation in Sensor Networks: Optimally Trading Information for Energy wireless
Jen Burge, Kamesh Munagala, Romit Roy Choudhury
Technical Report, January 2008 [slides]

Posters and Demos
BeamCast: Harnessing Beamforming Capabilities for Link Layer Multicast wireless
Poster, ACM MobiCom 2008.

CacheCloak: Enabling Realtime Location Privacy for Mobile Users mobile
Poster, ACM MobiCom 2008.

Energy-Aware Localization Using Mobile Phones mobile
Poster, ACM MobiSys.

2007

Designing a Rate-Based Transport Protocol for Wired-Wireless Networks wireless
Shravan Gaonkar, Romit Roy Choudhury, L. Magalhaes, Robin Kravets
IEEE Broadnets, Sep 2007.

Privacy-Preserving Detection of Sybil Attacks in Vehicular Ad Hoc Networks wireless
Tong Zhou, Romit Roy Choudhury, Peng Ning, Krish Chakrabarty
Mobiquitous, Aug 2007. [slides]

MAC-Layer Capture: A Problem in Wireless Mesh Networks Using Beamforming Antennas wireless
Romit Roy Choudhury, Nitin Vaidya
IEEE SECON, June 2007. [slides]

Posters and Demos
Capture-Aware Staggering for Concurrent Transmissions wireless
Poster, ACM CoNext 2007.

Micro-Blog: Mapcasting from Mobile Phones to Virtual Sensor Maps mobile wireless
Poster + Demo, Mobicom and Sensys, 2007.

MobiPING: Pinging in Mobile Social Networks mobile wireless
Poster, HotMobile 2007.

2006 and earlier

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