Dhairya J. Shah

I am Dhairya, a 3rd year Ph.D. student in Computer Science at the School of Computing, National University Singapore (NUS).

I am part of the WEISER Research Group at NUS, advised by Prof. Ambuj Varshney.

My research interests are at the intersection of wireless networking, embedded systems and on-device AI. My work focuses on developing ultra low-power communication (transceivers) and sensors, as well as AI agents that build them. These are enabled by radio-frequency (RF) and optical media, with applications ranging from health monitoring to XR devices.

During my PhD, I interned at Nokia Bell Labs, UK working on multi-modal sensory LLMs. Previously, I was a research intern at SENS Lab, EPFL working on mmWave communication and sensing. I graduated from VJTI (University of Mumbai, India) with a Bachelor of Technology in ECE (University Rank 1).

News

Nov 02, 2026	Visited the University of Washington, Seattle, hosted by Prof. Matt Reynolds.
Oct 28, 2026	Presented our demo on low-power audio streaming at ACM MobiCom ‘26 in Austin, TX, USA.
Oct 06, 2026	AudioCast was awarded an IMWUT Distinguished Paper Award!
Aug 07, 2026	M² wins Best Demo Honourable Mention at ACM/IEEE ISLPED ‘26 Low-Power Circuit Design Contest!
Jul 29, 2026	I was awarded the NUS Research Achievement Award for AY 25/26!
Jun 24, 2026	M² wins Best Poster Runner-Up at ACM MobiSys’26!
Jun 17, 2026	Presented HILO at IEEE RFID ‘26 in Santa Fe, NM, USA.
Mar 04, 2026	M² was accepted as Full Paper at ACM MobiSys ‘26 and awarded Featured Paper (Top 10/302).
Dec 25, 2025	Passed my PhD Qualifying Exam -> officially a doctoral candidate now!
Oct 18, 2025	Presented AudioCast at ACM UbiComp ‘25 held in Espoo, Finland.

Older News

Selected Publications

LoopHIL: Looping Hardware into LLM-assisted Agents for Wireless Embedded Systems

Dhairya Shah, Spanddhana Sara, Savitha Viswanadh Kandala, and Ambuj Varshney

Full Paper

arXiv Bib PDF

@misc{loophil_26,
  author = {Shah, Dhairya and Sara, Spanddhana and Kandala, Savitha Viswanadh and Varshney, Ambuj},
  title = {{LoopHIL}: Looping Hardware into {LLM}-assisted Agents for Wireless Embedded Systems},
  year = {2026},
  url = {https://arxiv.org/abs/2610.24231},
  series = {Under Review}
}

Microwatt Microwave (M²) Oscillator: Going Beyond the Delegation Architecture of Low-power Wireless Communication

Pramuka Sooriya Patabandige^*, Dhairya Shah^*, C. Rajashekar Reddy, Spanddhana Sara, Prabal Dutta, and Ambuj Varshney

ACM MobiSys ’26 Full Paper 🏅 Featured Paper (10/302) 🏅 Best Poster Runner-Up 🏅 ISLPED ’26 Circuit Design Contest: Honorable Mention

DOI Bib PDF

@inproceedings{m2_mobisys26,
  author = {Sooriya Patabandige, Pramuka and Shah, Dhairya and Reddy, C. Rajashekar and Sara, Spanddhana and Dutta, Prabal and Varshney, Ambuj},
  title = {Microwatt Microwave (M²) Oscillator: Going Beyond the Delegation Architecture of Low-power Wireless Communication},
  year = {2026},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  url = {https://doi.org/10.1145/3745756.3809248},
  doi = {10.1145/3745756.3809248},
  booktitle = {Proceedings of the 24th Annual International Conference on Mobile Systems, Applications and Services (MobiSys '26)},
  pages = {941--959},
  series = {ACM MobiSys '26}
}

HILO: Enabling Low-power, Dual-Band Communication using Tunnel Diode Oscillators

Dhairya Shah^*, C. Rajashekar Reddy^*, Pramuka Medaranga, and Ambuj Varshney

IEEE RFID ’26 Full Paper

arXiv Bib PDF

@inproceedings{hilo_rfid26,
  author = {Shah, Dhairya and Reddy, C. Rajashekar and Medaranga, Pramuka and Varshney, Ambuj},
  title = {HILO: Enabling Low-power, Dual-Band Communication using Tunnel Diode Oscillators},
  year = {2026},
  booktitle = {2026 IEEE International Conference on RFID (RFID)},
  url = {https://doi.org/10.48550/arXiv.2610.18641},
  series = {IEEE RFID '26}
}

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

C. Rajashekar Reddy^*, Dhairya Shah^*, Nobel Ang, and Ambuj Varshney

ACM IMWUT ’25 Full Paper 🏅 Distinguished Paper Award

DOI Bib PDF Code

@article{audiocast_imwut25,
  author = {Reddy, C. Rajashekar and Shah, Dhairya and Ang, Nobel and Varshney, Ambuj},
  title = {AudioCast: Enabling Ubiquitous Connectivity for Embedded Systems through Audio-broadcasting Low-power Tags},
  year = {2025},
  issue_date = {June 2025},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  volume = {9},
  number = {2},
  url = {https://doi.org/10.1145/3729471},
  doi = {10.1145/3729471},
  journal = {Proc. ACM Interact. Mob. Wearable Ubiquitous Technol.},
  series = {ACM IMWUT '25},
  month = jun,
  articleno = {27},
  numpages = {32},
  keywords = {Beyond-backscatter transmitters, Embedded systems, FM-broadcast spectrum}
}

TunnelSense: Low-Power, Non-Contact Sensing Using Tunnel Diodes

Lim Chang Quan Thaddeus^*, C. Rajashekar Reddy^*, Yuvraj Singh Bhadauria, Dhairya Shah^*, Manoj Gulati, and Ambuj Varshney

IEEE RFID ’24 Full Paper

DOI arXiv Bib PDF

@inproceedings{tunnelsense_rfid24,
  author = {Thaddeus, Lim Chang Quan and Reddy, C. Rajashekar and Bhadauria, Yuvraj Singh and Shah, Dhairya and Gulati, Manoj and Varshney, Ambuj},
  booktitle = {2024 IEEE International Conference on RFID (RFID)},
  title = {TunnelSense: Low-Power, Non-Contact Sensing Using Tunnel Diodes},
  series = {IEEE RFID '24},
  year = {2024},
  volume = {},
  number = {},
  pages = {154-159},
  keywords = {Power demand;Tracking;Resonant frequency;Voltage;Receivers;Transceivers;Sensors},
  doi = {10.1109/RFID62091.2024.10582671}
}

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