I am currently a Postdoctoral Scholar at AI-EDGE Institute at The Ohio State University (OSU) , where I have the privilege of working under the joint guidance of Prof. Ness Shroff, Prof. Eylem Ekici, Prof. Kannan Srinivasan (Athreya). Prior to joining OSU, I completed my Ph.D. at the University of Maryland, Baltimore County (UMBC), where I was mentored by Prof. Ting Zhu.

Google Scholar GitHub            Email: liu.10663@osu.edu

News

[Mar 2024] I'm thrilled to announce my latest adventure. This August, I'll be joining the Computer Science Department at Florida State University as an Assistant Professor.
[Aug 2023] As a co-chair, I organized the first SPARKS event for AI-EDGE, connecting 70+ Ph.D. students and postdocs across 8 universities. Amazed by their brilliance!
[Aug 2023] Our work 'LightThief' got accepted by USENIX Security'23. Who knew my optical engineering skills from 7 years ago would come back into play?
[Jul 2023] My two undergraduate students successfully presented their research in the REU program. Over the past two months, they've been diligently learning about wireless networking, reinforcement learning, and deep learning. Wishing them a bright future ahead!
[Jan 2023] I organized the AMC 8 Math Competition for students at Ohio State. It was heartwarming to see young students' enthusiasm for STEM. Who knows, some of them may be my future Ph.D. students!
[Aug 2022] I've joined the AI-EDGE Institute at OSU for my postdoctoral work. Looks like I'll be mingling with AI from now on—let's hope it likes me as much as I'm fascinated by it!
[Nov 2021] Our work 'ICSL' got accepted by ACM CCS'21. Buckle up, folks! We're taking a detour into the wild world of cybersecurity—wish us luck!
[Apr 2021] Our work 'TScatter' finally found its home in USENIX NSDI'21. After so many revisions, the one thing I forgot to revise was the name. Now everyone keeps asking me why it's called 'TScatter'. 'T' stands for 'Transfer,' as in FFT. Yes, we're transferring information through time and frequency domains!—all without a battery!
[Jun 2020] I brought the oscilloscope home and set up an experimental station in the basement. Now I have a perfect 'scientific' excuse to dodge some quality time with my wife!
[Aug 2020] Our work 'LScatter' got accepted in ACM SIGCOMM'20. Thanks to the pandemic, the grand international conference venue has been downgraded to my still-messy living room.
[Feb 2020] Our work 'VMscatter' got accepted by USENIX NSDI'20. Guess I'll be California Dreamin' on my way to the conference—hopefully, the journey will be warmer than this winter's day!
[Nov 2019] Our work 'PIC' was awarded Best Paper Award Candidate at ACM SenSys'19. It's like our CTC 'farewell tour', but don't worry—I'll be back!
[Nov 2018] Our work 'Passive-ZigBee' snagged Best Paper Runner-Up Award at ACM SenSys'18. Believe it or not, we're the first team to try and marry CTC with backscatter technologies. It's like a techy blind date—awkward but promising!

Selected Publications


Verification and Redesign of OFDM Backscatter
Xin Liu , Zicheng Chi, Wei Wang, Yao Yao, Pei Hao, Ting Zhu
USENIX NSDI'21    [Code] [Circuit] [Talk]

VMscatter: A Versatile MIMO Backscatter
Xin Liu, Zicheng Chi, Wei Wang, Yao Yao, Ting Zhu
USENIX NSDI'20    [Code] [Circuit] [Talk]

Leveraging Ambient LTE Traffic for Ubiquitous Passive Communication
Zicheng Chi, Xin Liu (co-primary), Wei Wang, Yao Yao, Ting Zhu
ACM SIGCOMM'20   

I Can See the Light: Attacks on Autonomous Vehicles Using Invisible Lights
Wei Wang, Yao Yao, Xin Liu, Xiang Li, Hao Pei, Ting Zhu
ACM CCS'21   

Parallel Inclusive Communication for Connecting Heterogeneous IoT Devices at the Edge
Zicheng Chi, Yan Li, Xin Liu, Yao Yao, Yanchao Zhang, Ting Zhu
ACM SenSys'19 (Best Paper Award Candidate)  

Chiron: Concurrent High Throughput Communication for IoT Devices
Yan Li, Zicheng Chi, Xin Liu, Ting Zhu
ACM MobiSys'18   

Passive-ZigBee: Enabling ZigBee Communication in IoT Networks with 1000X+ Less Power Consumption
Yan Li, Zicheng Chi, Xin Liu, Ting Zhu
ACM SenSys'18 (Best Paper Runner-up Award)  

EAR: Exploit Uncontrollable Ambient RF Signals in Heterogeneous Networks for Gesture Recognition
Zicheng Chi, Yao Yao, Tiantian Xie, Xin Liu, Zhichuan Huang, Wei Wang, Ting Zhu
ACM SenSys'18