All Stories

  1. Demo: VisibleBits: Illuminating Mixed Reality with Li-Fi Information Spotlights

    Article • November 2025, ACM (Association for Computing Machinery)

    Ambuj Varshney, Celes Chai Jia Xuan

  2. Unraveling the Missing Link in Low-power Communication: An Autodyning Receiver Architecture that Achieves a Long Range

    Article • June 2025, ACM (Association for Computing Machinery)

    Rajashekar Reddy Chinthalapani, Ambuj Varshney

  3. AudioCast: Enabling Ubiquitous Connectivity for Embedded Systems through Audio-broadcasting Low-power Tags

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, June 2025, ACM (Association for Computing Machinery)

    Ambuj Varshney, Rajashekar Reddy Chinthalapani

  4. Li-FiAR: Networking Augmented-Reality Devices through Visible Light

    Article • December 2024, ACM (Association for Computing Machinery)

    Ambuj Varshney

  5. Your Data, Your Model: A Framework for Training and Deploying Foundational Language Models for Embedded Devices

    Article • December 2024, ACM (Association for Computing Machinery)

    Ambuj Varshney

  6. PixelGen: Rethinking Embedded Cameras for Mixed-Reality

    Article • December 2024, ACM (Association for Computing Machinery)

    Ambuj Varshney

  7. GateHaul: A Gateway Architecture using Backhauling Networks to Address the Connectivity Challenges of Embedded Systems

    Article • December 2024, ACM (Association for Computing Machinery)

    Ambuj Varshney, Spanddhana Sara

  8. A Framework for Training and Deploying Foundational Language Models for Embedded Sensing

    Article • December 2024, ACM (Association for Computing Machinery)

    Ambuj Varshney

  9. Revisiting FM Frequency-band for IoT Devices

    Article • November 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney, Rajashekar Reddy Chinthalapani

  10. Demo Abstract: Light and Vibration Gesture Sensing with OTTER: Embedded Data Collection and Analysis Using LLMs

    Article • November 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney

  11. Otter: Simplifying Embedded Sensor Data Collection and Analysis using Large Language Models

    Article • October 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney

  12. Going Beyond Backscatter: Rethinking Low-Power Wireless Transmitters using Tunnel Diodes

    Article • October 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney

  13. PassiveLiFi Demonstration: Rethinking LiFi for Low-Power and Long Range RF Backscatter

    Article • October 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney

  14. Poster: Rethinking Embedded Sensor Data Processing and Analysis with Large Language Models

    Article • June 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney

  15. Poster: VoCopilot: Enabling Voice-Activated Tracking for Everyday Interactions

    Article • June 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney

  16. Demo: An Educational Platform to Learn Radio Frequency Wireless Communication

    Article • June 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney

  17. TunnelLiFi: Bringing LiFi to Commodity Internet of Things Devices

    Article • February 2023, ACM (Association for Computing Machinery)

    Ambuj Varshney, Muhammad Sarmad Shahab Mir

  18. Enabling L3

    Article • October 2022, ACM (Association for Computing Machinery)

    Ambuj Varshney

  19. Judo

    Article • June 2022, ACM (Association for Computing Machinery)

    Ambuj Varshney