Publications, talks, demos, workshops listed below.

Conference Publications

[SIGSPATIAL] Haotian Wang, Niranjini Rajagopal, Anthony Rowe, Bruno Sinopoli, and Jie Gao, Efficient Beacon Placement Algorithms for Time-of-Flight Indoor Localization, (To appear in) The ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, November, 2019, Chicago, Illinois

[IPIN] Niranjini Rajagopal, John Miller, Krishna Kumar Reghu Kumar, Anh Luong, and Anthony Rowe, Improving Augmented Reality Relocalization Using Beacons and Magnetic Field Maps, The 10th International Conference on Indoor Positioning and Indoor Navigation, September, 2019, Pisa, Italy (Runner-up, Best Paper Award)

[IPSN] Niranjini Rajagopal, Patrick Lazik, Nuno Pereira, Sindhura Chayapathy, Bruno Sinopoli and Anthony Rowe, Enhancing Indoor Smartphone Location Acquisition using Floor Plans , The 17th International Conference on Information Processing in Sensor Networks, April, 2018, Porto, Portugal

[RTAS] Adwait Dongare, Patrick Lazik, Niranjini Rajagopal and Anthony Rowe, Pulsar: A Wireless Propagation-Aware Clock Synchronization Platform, The 23rd IEEE Real-Time and Embedded Technology and Applications Symposium, 2017, Pittsburgh, Pennsylvania, USA

[IPIN] Niranjini Rajagopal, Sindhura Chayapathy, Bruno Sinopoli, Anthony Rowe, Beacon Placement for Range-Based Indoor Localization, The 7th International Conference on Indoor Positioning and Indoor Navigation, October, 2016, Madrid, Spain

[SenSys] Patrick Lazik, Niranjini Rajagopal, Oliver Shih, Bruno Sinopoli, Anthony Rowe, ALPS: A Bluetooth and Ultrasound Platform for Mapping and Localization, The 13th ACM Conference on Embedded Networked Sensing Systems, November, 2015, Seoul, South Korea

[RTAS] Patrick Lazik, Niranjini Rajagopal, Bruno Sinopoli, Anthony Rowe, Ultrasonic Time Synchronization and Ranging on Smartphones, 21st IEEE Real-Time and Embedded Technology and Applications Symposium, Seattle, Washington, April 13th, 2015

[IPSN] Lymberopoulos et al., A Realistic Evaluation and Comparison of Indoor Location Technologies: Experiences and Lessons Learned, The 14th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2015), Seattle, Washington, April 13th, 2015

[VLCS] Niranjini Rajagopal, Patrick Lazik, Anthony, Rowe, Hybrid Visual Light Communication for Cameras and Low-Power Embedded Devices, 1st ACM Workshop on Visible Light Communication Systems , Sep 7, 2014, Maui, Hawaii

[IPSN] Niranjini Rajagopal, Patrick Lazik, Anthony Rowe, Visual Light Landmarks for Mobile Devices , ACM/IEEE International Conference on Information Processing in Sensor Networks, 2014, Berlin Germany

[RTSS] Maxim Buevich, Niranjini Rajagopal, Anthony Rowe, Hardware Assisted Clock Synchronization for Real-Time Sensor Networks, IEEE Real-Time Systems Symposium, Vancouver, CA 2013

[ICCPS] Niranjini Rajagopal, Suman Giri, Mario Berges, Anthony Rowe, A Magnetic Field-based Appliance Metering System, The 4th ACM/IEEE International Conference on Cyber-Physical Systems, Apr. 8th, Philadelphia, USA 2013

[VLSID] Ramasamy, S., B. Venkataramani, R. Niranjini, and K. Suganya. 100KHz-20MHz Programmable Subthreshold G_m-C Low-Pass Filter in 0.18µ-m CMOS. In 2009 22nd International Conference on VLSI Design, pp. 105-110. IEEE, 2009

Invited Talks

Towards Location-Aware Computing
Facebook Reality Labs, Apr 2019
Microsoft Research India, Apr 2019

Location, location, location! A key primitive for Cyber Physical Systems
Amazon, Apr 2019
University of Texas at Austin, Apr 2019
University of Virginia, Mar 2019
Cornell University, Feb 2019

Augmented Reality meets Internet-of-Things
CyLab Partners Conference, CMU, Sept 2018

Mobile Augmented Reality
CONIX Research Center Annual Review, Pittsburgh, Sep 2018

Towards Location-Aware Computing, Sep 2018
Intel Labs, Santa Clara
Amazon, Seattle
Magic Leap, Seattle

The Current Status of Research on Mobile Location Aware Technology
Conference on Mobile Position Awareness Systems and Solutions, San Francisco Exploratorium, Sep 2018

Where am I? A sensor-fusion approach to indoor localization, June 2018
ETH, Zurich
KTH Royal Institute of Technology, Stockholm

Enhancing Indoor Smartphone Location Acquisition using Floor Plans
The 17th International Conference on Information Processing in Sensor Networks (IPSN), Apr 2018

Beacon Placement for Range-Based Indoor Localization
The 7th International Conference on Indoor Positioning and Indoor Navigation (IPIN), Oct 2016

Grappling with Billions of Devices - A Step Towards Spatially-Aware IoT
CyLab Partners Conference, CMU, Sept 2016

Sensor Fusion and Automatic Infrastructure Mapping for Indoor Localization Systems
Samsung , San Jose, March 2016

Smartphone-based Indoor Localization, May 2015
Microsoft Research, Bangalore, India
Robert Bosch Centre for Cyber-Physical Systems, Indian Institute of Science, Bangalore, India

Smart Lighting: Technology and Applications for Building Automation
Carnegie Mellon Smart Infrastructure Institute (SII), Dec 2014

Hybrid Visible Light Communication for Cameras and Low-Power Embedded Devices
1st ACM Workshop on Visible Light Communication Systems Workshop (VLCS), Sep 2014

Visual Light Landmarks for Mobile Devices
13th ACM/ IEEE International Conference on Information Processing in Sensor Networks (IPSN), Apr 2014

A Magnetic Field-based Appliance Metering System
4th ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS), Apr 2013

Select Demos

In the spirit of systems research, I implement and demonstrate all the proposed solutions and systems. Here are some of the demos.

[Army AI Initiative] Niranjini Rajagopal, John Miller, Anh Luong, Anthony Rowe, An Interactive Infrastructure-Free Indoor Localization System for Firefighters, One of the four demos in CMU for CMU & Army AI Hub event, Feb, 2019 (not peer-reviewed)

[NIST] Niranjini Rajagopal, John Miller, Anh Luong, Anthony Rowe, An Infrastructure-Free Localization System for Firefighters, Public Safety Broadband Stakeholder Meeting, organized by NIST, San Diego, June, 2018 (not peer-reviewed) Poster

[IPSN] Niranjini Rajagopal, John Miller, Krishna Kumar, Anh Luong, Anthony Rowe, Demo Abstract: Welcome to My World: Demystifying Multi-user AR with the Cloud, The 17th International Conference on Information Processing in Sensor Networks, 2018, Porto, Portugal (Best Demo Award)

[IPIN] Niranjini Rajagopal, Sindhura Chayapathy, Bruno Sinopoli, Anthony Rowe, A Toolchain for Beacon Placement for Range-Based Indoor Localization, The 7th International Conference on Indoor Positioning and Indoor Navigation. October, 2016, Madrid, Spain (not peer-reviewed)

[SenSys] Patrick Lazik, Niranjini Rajagopal, Oliver Shih, Bruno Sinopoli, Anthony Rowe, ALPS - The Acoustic Location Processing Systema>, The 13th ACM Conference on Embedded Networked Sensor Systems, 2015, Seoul, South Korea.

[IPSN] Niranjini Rajagopal, Patrick Lazik, Anthony Rowe, “Demonstration Abstract: How Many Lights do You See?”, in Proceedings of the 13th ACM/IEEE International Conference on Information Processing in Sensor Networks, Berlin, Germany, 2014

[ICCPS] Niranjini Rajagopal, Suman Giri, Mario Berges, Anthony Rowe, “Demonstration Abstract: A Magnetic Field-based Appliance Metering System“, The 4th ACM/IEEE International Conference on Cyber-Physical Systems, Apr. 8th, Philadelphia, USA

Select Workshops

[NSF CPS] Digital Twin Technology, mini-workshop at NSF Cyber-Physical Systems PI annual meet, Washington DC, Nov 2018

[KTH] Smart Cities Summer School, organized by Integrated Transport Research Lab, at KTH Royal Institute of Technology, Sep 2018

[USC] Mixed Reality Workshop, organized by CONIX Research Center, at Institute for Creative Technologies, University of Southern California, Aug 2018

[UCLA ] Enhanced Situational Awareness Workshop, organized by CONIX Research Center, at University of California Los Angeles, Aug 2018

[VLCS] 1st ACM Workshop on Visible Light Communication Systems (VLCS), in conjunction with MobiCom, Maui, Hawaii, Sep 2014 "Poster: Is There a Place for VLC in Wireless Sensor Networks?"

[UMich] Indoor localization Workshop, organized by the TerraSwarm Research Center, at University of Michigan, May 2014 "Poster: Visible Light Landmarks for Phones and Low-Power Sensors"

[CMU] Open Building Automation Systems Workshop, organized by DOE Building Technologies Office Project, at CMU, Nov 2014 "Poster: Solid-State Lighting for Sensor Mapping"

Publications, talks, demos, workshops listed above.