Ambuj Varshney

Ambuj Varshney is an Assistant Professor at the National University of Singapore (NUS) School of Computing, leading the WEISER research group. His work bridges electronics, wireless communication, computer science, and AI with a focus on creating ultra-low-power embedded systems for sustainable IoT deployments.

• University of California, Berkeley: Postdoctoral Scholar (2020-2022)
• Uppsala University: PhD in Sustainable Networked Systems
• NXP Semiconductors: Software Engineer (prior to PhD)
• Bachelors in Information & Communication Technology

Research interests center on overcoming wireless systems' energy asymmetry through tunnel diode oscillators, LiFi-RF hybrid networks, and battery-free communication architectures. His group develops STICORS—sticker-like computers for industrial and medical monitoring.

Recent publications demonstrate AudioCast's FM-band utilization for 130m transmission, TunnelSense's vital monitoring, and PixelGen's diffusion model cameras. These works combine IoT sustainability, spectrum efficiency, and hardware innovation.

• 2024: Google Research Scholar Award
• 2023: MobiSys Best Demonstration
• 2021: Berkeley FORM+FUND Fellowship
• 2019: ABB's $300K Research Award

As an educator, he teaches CS4222 Wireless Networking and CS5272 Embedded Software Design. Past students include Wenqing Yan (NUS/UCB PhD), Qiao Yukai, and Kunjun Li. His team collaborates with Prabal Dutta (UCB), Christian Rohner (Uppsala), and Prateek Saxena (NUS).