Pengyu Zhang


I am a postdoc researcher at Stanford working with Sachin Katti. I received my Ph.D. from UMass Amherst. My advisor was Deepak Ganesan. I received my bachelor and master from Tsinghua University.
I design and implement low-power communication, sensing and computing systems for Internet-of-Things. I invented innovative backscatter communication technologies that provide low-power wireless connectivity, leveraged software-hardware co-design to support dedicated applications, designed runtime systems for intermittent powered computing systems, and improved the security and privacy of IoT devices.

pyzhang@cs.stanford.edu

I am on the academic job market. Here is my CV.

Conference Publications

[C21] Smartphone App Usage Prediction Using Points of Interest
Donghan Yu, Yong Li, Fengli Xu, Pengyu Zhang, Vassilis Kostakos
UbiComp 2018

[C20] FreeRider: Backscatter Communication Using Commodity Radios
Pengyu Zhang, Colleen Josephson, Dinesh Bharadia, Sachin Katti
CoNEXT 2017

[C19] Localizing Low-power Backscatter Tags Using Commodity WiFi
Manikanta Kotaru, Pengyu Zhang, Sachin Katti
CoNEXT 2017

[C18] Glimpse: A Programmable Early-Discard Camera Architecture for Continuous Mobile Vision
Saman Naderiparizi, Pengyu Zhang, Matthai Philipose, Bodhi Priyantha, Jie Liu, Deepak Ganesan
MobiSys 2017
Best Paper Award Nominee

[C17] Trajectory Recovery From Ash: User Privacy Is NOT Preserved in Aggregated Mobility Data
Fengli Xu, Zhen Tu, Yong Li, Pengyu Zhang, Xiaoming Fu, Depeng Jin
WWW 2017

[C16] HitchHike: Practical Backscatter using Commodity WiFi
Pengyu Zhang (Co-primary), Dinesh Bharadia (Co-primary), Kiran Joshi, Sachin Katti
SenSys 2016
Best Paper Award Nominee
Press cover: Stanford News, ACM TechNews, ECN, Science Blog, Pace Today, North Dallas Gazette, New Electronics, RFID Journal, NFC World, etc.

[C15] Context-aware Real-time Population Estimation for Metropolis
Fengli Xu, Jie Feng, Pengyu Zhang, Yong Li
UbiComp 2016
Honorable Mention Award.

[C14] Enabling Practical Backscatter Communication for On-body Sensors
Pengyu Zhang, Mohammad Rostami, Pan Hu, Deepak Ganesan
SIGCOMM 2016

[C13] Braidio: An Integrated Active-Passive Radio for Mobile Devices with Asymmetric Energy Budgets
Pan Hu, Pengyu Zhang, Mohammad Rostami, Deepak Ganesan
SIGCOMM 2016
Press cover: Science Daily, Energy Harvesting Journal, PHYS, Elektor Magazine, Electronics360, etc.

[C12] Understanding Mobile Traffic Patterns of Large Scale Cellular Towers in Urban Environment
Huandong Wang, Fengli Xu, Yong Li, Pengyu Zhang, Depeng Jin
IMC 2015 - long paper

[C11] Laissez-Faire: Fully asymmetric backscatter communication
Pan Hu, Pengyu Zhang, Deepak Ganesan
SIGCOMM 2015

[C10] Leveraging Interleaved Signal Edges for Concurrent Backscatter
Pan Hu, Pengyu Zhang, Deepak Ganesan
Proceedings of the 2014 ACM Workshop on Hot Topics in Wireless

[C9] EkhoNet: High Speed Ultra Low-power Backscatter for Next Generation Sensors
Pengyu Zhang, Pan Hu, Vijay Pasikanti, Deepak Ganesan
Mobicom 2014
Best paper award runner up.

[C8] Enabling Bit-by-Bit Backscatter Communication in Severe Energy Harvesting Environments
Pengyu Zhang, Deepak Ganesan
NSDI 2014

[C7] QuarkOS: Pushing the operating limits of micro-powered sensors
Pengyu Zhang, Deepak Ganesan, Boyan Lu
HotOS XIV

[C6] EnGuard: Protection of NFC Interactions on a Mobile Phone
Jeremy Gummeson, Bodhi Priyantha, Deepak Ganesan, Derek Thrasher, Pengyu Zhang
MobiSys 2013

[C5] BLINK: A High Throughput Link Layer for Backscatter Communication
Pengyu Zhang, Jeremy Gummeson, Deepak Ganesan
MobiSys 2012

[C4] Flit: A Bulk Transmission Protocol for RFID-Scale Sensors
Jeremy Gummeson, Pengyu Zhang, Deepak Ganesan
MobiSys 2012

[C3] Analyzing Amplify-and-Forward and Decode-and-Forward Cooperative Strategies in Wyner's Channel Model
Pengyu Zhang, Jian Yuan, Jianshu Chen, Jian Wang, Jin Yang
WCNC 2009

[C2] An Orthogonal Projection Based Blind Beamformer for DS-CDMA Systems
Jianshu Chen, Jian Wang, Pengyu Zhang, Jian Yuan and Xiuming Shan
SAM 2008

[C1] An Orthogonal Projection Approach for Blind Beamforming in Multipath CDMA channels
Jianshu Chen, Jian Wang, Pengyu Zhang, Jian Yuan and Xiuming Shan
CNSR 2008


Journal Publications

[J3] Understanding Mobile Traffic Patterns of Large Scale Cellular Towers in Urban Environment
Fengli Xu, Yong Li, Huandong Wang, Pengyu Zhang, Depeng Jin
IEEE/ACM Transactions on Networking 2016

[J2] Leveraging Interleaved Signal Edges for Concurrent Backscatter
Pan Hu, Pengyu Zhang, Deepak Ganesan
ACM SIGMOBILE Mobile Computing and Communications Review (MC2R) 2015

[J1] EkhoNet: High-Speed Ultra Low-Power Backscatter for Next Generation Sensors
Pengyu Zhang, Pan Hu, Vijay Pasikanti, Deepak Ganesan
GetMobile: Mobile Computing and Communications 2015


Demos and Posters

[D2] Enabling Backscatter Communication among Commodity WiFi Radios
Pengyu Zhang, Dinesh Bharadia, Kiran Joshi, Sachin Katti
SIGCOMM 2016

[D1] Embedded NFC protection and forensics for mobile phones with EnGarde
Jeremy Gummeson, Bodhi Priyantha, Deepak Ganesan, Derek Thrasher, Pengyu Zhang
MobiSys 2013


PhD Thesis

Leveraging Backscatter For Ultra-Low Power Wireless Sensing Systems
Pengyu Zhang
2016
ACM SIGMOBILE Doctoral Dissertation Award 2016
Outstanding Doctoral Dissertation Award at UMass Amherst 2016