I am an engineer and an experimental computer scientist. I like to build real systems. I enjoy working at the intersection of electronics, computer science, and communication. More formally, I am an Assistant Professor in the School of Computing at the National University of Singapore . I am bootstrapping, Wireless, Embedded Intelligence, Sensing and Emerging Technologies (WEISER) group. I am part of the Systems and Networking area at School of Computing at National University of Singapore.
One of our major ongoing projects is to rethink factories of the future by enabling massive data collections, significantly increase the productivity, and usher in the next industrial revolution. This project is being conducted together with UC Berkeley (Prof. Prabal Dutta) and ABB. Our approach involves creating sticker form factor, and low power consumption sensors. There is even a possibility of powering these small computers with only the energy harvested from the environment, thus operating without batteries. You can read more about this project here.
I spent several wonderful years at Uppsala, Sweden, where I completed my PhD in Computer Science at Uppsala University . It is among the world's oldest institutions (est. 1477!), and oldest in Scandinavia.
I worked as a software engineer at NXP Semiconductor. I was responsible to design low-power wireless networking stack. Finally, I obtained a Bachelors in Information and Communication Technology from DA-IICT, India and I mostly worked under mentorship of Prof. Prabhat Ranjan.
I am a Swedish citizen 🇸🇪, and an Overseas Citizen of India 🇮🇳
I am actively looking for motivated Ph.D students, as well as undergraduates and visiting researchers.
Prof. Dr. Ambuj Varshney
Department of Computer Science
School of Computing
National University of Singapore
[January 2022] I am honoured to serve on the jury of the ABB Research Award in Honor of Hubertus von Grünberg in 2022 . Its research endowment (approximately 300k USD) is one of the highest offered by any commercial organization. You should consider applying for this prestigious grant if you are finishing your PhD studies, or have just recently completed your studies.
[April 2021] I am excited to serve on the editoral board of the "Wireless Embedded Systems" track of the exciting new open-access journal Journal of Systems Research"
[August 2020] Looking forward to beginning a new chapter in my career as a Postdoctoral Scholar at the University of California, Berkeley under the guidance of Prof. Prabal Dutta.
[June 2020] Extremely proud that Andreas Soleiman whom I have been mentoring for past several years has received Ph.D. admits from University of California@Berkeley, MIT (accepted), University of Washington@Seattle, Dartmouth and others!!
[December 2019] Uppsala University Innovation appreciated our battery-free sensing work with Attractive Innovation Award and selected it among Top 15 projects from the University! Find the press release here
[November 2019] For my doctoral dissertation and ongoing work to enable large-scale data collection in industries with battery-free sensors, I received the prestigious ABB Research Award 2019. The award includes the highest endowment contribution from any company, valued at 300,000 USD. You can read more about this from the following press release from ABB, and another press release from Uppsala University.
[February 2021] I gave a talk at KTH, Stockholm, Sweden. Due to the pandemic, I took leave of absence from UC Berkeley, and I visited the NSS Group @KTH. The talk was delivered during the visit to the research group.
[November 2020] I worked together with colleagues at the IMDEA Networks Institute in Spain. At European Researchers' Night 2020 and Science and Innovation Week 2020, we presented work on designing battery-free platforms using hybrid (RF-backscatter and LiFi) communication mediums. Watch more in this video.
[October 2020] ACM SIGMOBILE India Chapter invited me to speak about enabling widespread sustainable sensing. The announcement was distributed through official ACM channels.
[October 2020] At ACM MOBICOM 2020, I presented our work on low-power carrier emitters using tunnel diode. The research was conducted jointly with Lorenzo Corneo (Uppsala University). Watch the presentation here .
[July 2020] At ACM MOBISYS 2020, I presented a hybrid light and RF backscatter system. We did this work with colleagues at the IMDEA Networks Institute in Spain. You can find video presentation here .
[February 2020] I was invited to give a talk at ABB Corporate Research Center, Sweden. I discused enabling sustainable and widespread sensing in factories. My host for the talk was Dr. Alf Isaksson (ABB Research Fellow)
[November 2019] I gave a talk at ABB Research Center, Baden, Switzerland. It was (among others) attended by the CEO and Chairman of ABB, Peter Voser , and Ex-chairman of ABB, Hubertus von Gruenberg.
Battery-free Visible Light Sensing Ambuj Varshney, Andreas Soleiman, Luca Mottola, Thiemo Voigt (ACM VLCS (Co-located with ACM MobiCom) 2017 ) Best Paper Award ACM Student Research Competition Winner (Graduate, MobiCom) (Mentored student) Google Faculty Research Award 2018 (PhD advisor)