Full-time Faculty Members

Chenren Xu 许辰人

Assistant Professor (Tenure-track) | 新体制研究员 | 博士生导师

Department of Computer Science and Technology

Peking University

5 Yiheyuan Road, Beijing, China, 100871

Founding Director, Software-hardware Orchestrated ARchitecture (SOAR) Lab

Associate Editor, Proceedings of the ACM on IMWUT (aka "UbiComp")

Alibaba DAMO Academy Young Fellow

Senior Member of IEEE and ACM, Member of CCF

Tel: +86(0)10-6276-7874 | Fax: +86(0)10-6275-8746

Email: chenren.xu [at] gmail.com | chenren [at] pku.edu.cn

Office: 518S Science Building No.5(理科5号楼518S)


09/2020: Awarded NSFC Excellent Young Scientists Fund(国家优秀青年科学基金)!

08/2020: Awarded ACM SIGCOMM China Rising Star!

07/2020: Invited to serve TPC for INFOCOM'21 and Publication Chair for SIGCOMM'21!

05/2020: RetroTurbo (VLC backscatter) and NFC+ (Magnetic Backscatter) systems are accepted to SIGCOMM'20!

05/2020: LTE disconnection taxonomy and HSR TCP-LTE measurement study is accepted to JSAC'20!

05/2020: FPGA-based Edge Computing System is accepted to TMC'20!

01/2020: Invited to serve as TPC, Vice General Chair and Student Travel Grant Chair for SenSys'20!

01/2020: VLC Backscatter System for Infrastructure-to-Vehicle Networking is accepted to MobiCom'20!

01/2020: Smartphone-based Vehicular Location Tracking System is accepted to IPSN'20!

01/2020: Invited to serve as TPC and Student Travel Grant Chair for APNet'20!

12/2019: FPGA-powered Dynamic DNN Reconfigurable Continuous Mobile Vision System is accepted to INFOCOM'20!

12/2019: Gave a keynote speech in Embedded AI Summit in Shenzhen, China!

10/2019: PQAM for VLC Backscatter won MobiCom'19 Student Research Competition Gold Medal!

10/2019: Co-chaired Young Scholar Forum at CWSN'19(第十三届中国物联网学术会议青年学者论坛)!

09/2019: Extreme Wireless Networking Vision paper was published in Communications of the CCF(中国计算机学会通讯)!

07/2019: Invited to serve as TPC for IPSN'20 and Publicity Chair for CPS-IoT Week'20!

07/2019: SGX-based Privacy-perserving Edge Computing System is accepted to MobiCom'19!

06/2019: Co-chaired ACM MobiSys'19 Rising Stars Forum in Seoul, Korea!

05/2019: Gave a keynote speech in Rising Star Forum of ACM Turing Celebration Conference - China(ACM China未来新星论坛)!

03/2019: Gave a seminar talk on VLC Backscatter work in MIT CSAIL!

03/2019: Backscatter opensource platform tutorial paper is featured in GetMobile Magazine!

02/2019: Invited to serve as Workshop Chair of SenSys'19!

01/2019: Invited to serve as Associate Editor of ACM IMWUT/UbiComp!

11/2018: Gave an invited talk on VLC Backscatter work in Future Internet Summit in Seoul, Korea!

11/2018: VLC Backscatter System for V2X communications is awarded SenSys'18 Best Demo!

11/2018: Invited to serve as TPC for MobiSys'19!

10/2018: High-speed Rails TCP is accepted to MobiCom'19!

09/2018: Awarded Alibaba DAMO Academy Young Fellow of class 2018!

09/2018: Backscatter tutorial paper was featured in IEEE Signal Processing Magazine Special Issue on IoT!

06/2018: Invited to serve as Web Chair for SIGCOMM'19 and TPC for IPSN'19!

02/2018: Invited to serve as TPC for SenSys'18!

11/2017: FPGA-based Edge Computing work is accepted to INFOCOM'18!

10/2017: Awarded MSRA StarTrack Visiting Scholarship of class 2018!

10/2017: Awarded CCF-Intel Young Faculty of class 2017!

10/2017: Gave seminar talks on VLC Backscatter work in TUM, Oxford and Cambridge!

10/2017: Software-defined Charging and VLC Backsatter won MobiCom'17 Student Research Competition Silver and Bronze Medals!

10/2017: Invited to co-chair the Poster/Demo session for UbiComp'18!

07/2017: On-bed Vital Sign Sensing work is accepted to SenSys'17!

07/2017: Invited to attend the NSF Extreme Wireless Visioning Workshop held in Salt Lake City!

06/2017: VLC Backscatter for Battery-free IoT is accepted to MobiCom'17!

About Me

Prof. Chenren Xu is a principal investigator in the Department of Computer Science and Technology at Peking University (PKU) where he directs Software-hardware Orchestrated ARchitecture (SOAR) Lab, and enjoys inventing future mobile technologies with his students to bridge the gap between networking and transportation, e.g., world's first roadway retroreflective V2X prototype and high-speed railway networking systems. He earned his Ph.D. in Computer Engineering from WINLAB, Rutgers University, was a postdoctoral research fellow in Computer Science Department at Carnegie Mellon University and visiting scholars in AT&T Shannon Labs and Microsoft Research Asia. He is a recipient of Alibaba DAMO Academy Young Fellow and CCF-Intel Young Faculty awards. He is a senior member of IEEE and ACM, and a member of CCF.


04834480 Computer Networks (Honor Track)

04802056 Advanced Computer Networks

04833010 Technology Innovation and Entrepreneurship

Research Interests

Backscatter Communication for Low Power IoT Connectivity [MobiCom'17][SPM'18][MobiCom'20][SIGCOMM'20a][SIGCOMM'20b]

Future Mobile Internet for High Mobility Data Networking [MobiCom'19a][ICDCS'19][APNet'19][JSAC'20]

Intelligent Edge System for Mobile and IoT Computing [UbiComp'14][HotNets'15][INFOCOM'18][MobiCom'19b][INFOCOM'20][TMC'20]

Sensing Sevice for Unobtrusive Human Context-awareness [IPSN'12][IPSN'13][UbiComp'13][UbiComp'16][TMC'16a][SenSys'17][IPSN'20]

Honors & Awards

ACM SIGCOMM China Rising Star Award, 2020

ACM MobiCom Student Research Competition Gold Medal (Advisor), 2019

Appreciation by ACM MobiSys, 2019

Baosteel Excellence in Teaching Award, 2018

ACM SenSys Best Demo Award, 2018

Alibaba DAMO Academy Young Fellow, 2018

Microsoft Research Asia StarTrack Visiting Young Faculty, 2018

CCF-Intel Young Faculty Award, 2017

ACM MobiCom Student Research Competition Silver/Bronze Medal (Advisor), 2017

Rutgers ECE Graduate Program Academic Achievement Award, 2015

Samsung Best Paper Award Gold Medal, 2014

ACM UbiComp Best Paper Nominee, 2014

ACM SenSys Best Poster Award, 2011

Shanghai Outstanding Graduate Award, 2008

National Undergraduate Electronic Design Contest Shanghai Divison First Prize, 2007

Professional Service

Technical Program Committee:

   •  2021: INFOCOM

   •  2020: BIGCOM (Vice Chair), SenSys, IPSN, SECON, IJCAI, APNet, COMSNETS, HotEdgeVideo, DCOSS, TURC

   •  2019: MobiSys (light), IPSN, EWSN, EdgeSys

   •  2018: SenSys (light), IPSN, Multimedia, ICDCS, SECON, GLOBECOM, DCOSS, EdgeSys, ICPADS

   •  2017: Multimedia, GLOBECOM, WearSys, IJCAI AI4IoT, MWDA

   •  2016: BIGCOM (Track Chair), SECON, WearSys

   •  2015: MobiSys (light), BuildSys, WearSys, VLCS

   •  2014: MobiCom S3, MobiSys MARS, MobiHoc MSCC, ICPADS, NAS

Organizing Committee:

   •  General Chair of SenSys'20 (Vice), MobiSys'19 Rising Stars Forum, PerCom'16 CoSDEO, SenSys'15 IoT-App

   •  Workshop Chair of SenSys'19

   •  Poster/Demo Chair of UbiComp'18, HotMobile'17, UIC'15

   •  Publicity Chair of CPS-IoT Week'20, IPSN'15, BuildSys'15, ALGOSENSORS'14

   •  Publication Chair of SIGCOMM'21

   •  Student Travel Grant Chair of SenSys'20, APNet'20

   •  Web Chair of SIGCOMM'19, ICCCN'15

Editorial Board:

   •  Associate Editor of Proceedings of the ACM on IMWUT (aka "UbiComp"), 2019 - 2021

   •  Lead Guest Editor of IEEE Signal Processing Magazine Special Issue on IoT, 2018

   •  Lead Guest Editor of Personal and Ubiquitous Computing Special Issue on Big Data Computing, Analytics and Applications, 2017

   •  Guest Editor of Geoinformatica Special Issue on Mobile Computing Support for Geospatial Systems, 2018


   •  IPSN'20 PhD Forum

   •  CMU Greater China Alumni Summit - "Innovation in the Internet Era", 2019

   •  CMU-Harvard "Distruptive Technologies of the Next Decade" Technology Salon, 2019

Local Community Volunteer:

   •  Board Member of Peking University Alumni Association of Greater Pittsburgh, 2016 - Now

   •  Board Member of Pittsburgh Chapter Chinese Association for Science and Technology, 2014 - 2015

   •  President of Rutgers Chinese Student and Scholar Association, 2010 - 2011


The Cases of Visible Light Backscatter Communication for Battery-free IoT and V2X Applications

   •  Keynote Speech at Embedded AI Summit, Shenzhen, China, December, 2019

   •  Keynote Speech at Rising Star Forum of ACM Turing Celebration Conference - China, Chengdu, China, May, 2019

   •  MIT CSAIL Seminar, Cambridge, MA, USA, March, 2019

   •  The Forum of Turing Centers, Shanghai, China, December, 2018

   •  Future Internet Summit, Seoul, Korea, November, 2018

   •  Annual PKU-UCLA JRI Symposium, Los Angles, CA, USA, October, 2018

   •  Tsinghua-ROHM International Forum of Industry-Academia, Beijing, China, May, 2017

The Rise of Augmented Intelligence in Edge Networks

   •  Department of Electrical and Computer Engineering of Rice University, Houston, TX, USA, August, 2018

   •  Computer Laboratory Systems Research Group Seminar of University of Cambridge, Cambridge, UK, October, 2017

   •  Cyber Physical Systems Group of Oxford University, Oxford, UK, October, 2017

   •  Connected Mobility Research Group of Technical University of Munich, Munich, Germany, October, 2017

   •  Microsoft Research Asia StarTrack Forum, Beijing, China, September, 2017

Learning Human Context through Unobtrusive Methods

   •  Palo Alto Research Center (PARC), Palo Alto, CA, USA, April, 2014

   •  FX Palo Alto Laboratory (FXPAL), Palo Alto, CA, USA, March, 2014

   •  Samsung Research America, San Jose, CA, USA, March, 2014

Team Members

PhD students: Jing Wang (2017), Weicheng Wang (2017), Yunzhe Ni (2018)

MS students: Lilei Feng (2018), Jingyu Li (2019)

Undergrad researchers:

   •  Class 2021: Purui Wang, Tuochao Chen (EE), Bo Liang (Physics), Chenke Wang, Chen Gong (Turing Class)

Open Source Contribution

Visible Light Backscatter Network Simulator

TCP-LTE dataset on High-speed Railways

Selected Journal and Magazine Publication

  1. A First Look at Disconnection-centric TCP Performance on High-speed Railways

    Chenren Xu, Jing Wang, Zhiyao Ma, Yihua Cheng, Yunzhe Ni, Wangyang Li, Feng Qian, Yuanjie Li
    IEEE Journal on Selected Areas in Communications, 2020.
  2. The Case for FPGA-based Edge Computing

    Chenren Xu, Shuang Jiang, Guojie Luo, Guangyu Sun, Ning An, Gang Huang, Xuanzhe Liu
    IEEE Transactions on Mobile Computing, 2020.
  3. 迈向极限无线互联之路 (Towards Extreme Wireless Networking)

    许辰人 (Chenren Xu)
    中国计算机学会通讯 (Communications of the CCF), 2019. Invited Article.
  4. Open-source Software and Hardware Platforms for Building Backscatter Systems

    Chenren Xu, Pengyu Zhang
    ACM GetMobile, 2019. Cover Article.
  5. Practical Backscatter Communication Systems for Battery-Free Internet of Things

    Chenren Xu, Lei Yang, Pengyu Zhang
    IEEE Signal Processing Magazine, 2018. Featured Article.
  6. Device-free WiFi Human Sensing: From Pattern-based to Model-based Approaches

    Dan Wu, Daqing Zhang, Chenren Xu, Hao Wang, Xiang Li
    IEEE Communications Magazine, 2017
  7. What Am I Looking At? Low-Power Radio-Optical Beacons for In-View Recognition Using Smart Glasses

    Ashwin Ashok, Chenren Xu, Tam Vu, Marco Gruteser, Richard Howard, Yanyong Zhang, Narayan Mandayam, Wenjia Yuan, Kristin Dana
    IEEE Transactions on Mobile Computing, 2016. Featured Article.
  8. The Case for Efficient and Robust RF-based Device-free Localization

    Chenren Xu, Bernhard Firner, Yanyong Zhang, Richard Howard
    IEEE Transactions on Mobile Computing, 2016

Selected Conference Publication (since 2015)

  1. Turboboosting Visible Light Backscatter Communication

    Yue Wu, Purui Wang (Co-primary), Kenuo Xu, Lilei Feng, Chenren Xu
    ACM Conference of the Special Interest Group on Data Communication, New York City, USA, August 2020
  2. NFC+: Breaking NFC Networking Limits through Resonance Engineering

    Renjie Zhao, Purui Wang (Co-primary), Xianshang Lin, Yunfei Ma, Pengyu Zhang, Hongqiang Liu, Xinyu Zhang, Chenren Xu, Ming Zhang
    ACM Conference of the Special Interest Group on Data Communication, New York City, USA, August 2020
  3. Renovating Road Signs for Infrastructure-to-Vehicle Networking: A Visible Light Backscatter Communication and Networking Approach [Simulator]

    Purui Wang, Lilei Feng (Co-primary), Guojun Chen (Co-primary), Chenren Xu, Yue Wu, Kenuo Xu, Guobin Shen, Kuntai Du, Gang Huang, Xuanzhe Liu
    ACM International Conference on Mobile Computing and Networking, London, United Kingdom, September 2020
  4. SCYLLA: QoE-aware Continuous Mobile Vision with FPGA-based Dynamic Deep Neural Network Reconfiguration

    Shuang Jiang, Zhiyao Ma, Xiao Zeng, Chenren Xu, Mi Zhang, Chen Zhang, Yunxin Liu
    IEEE International Conference on Computer Communications, Beijing, China, April 2020
  5. An Active-Passive Measurement Study of TCP Performance over LTE on High-speed Rails [Dataset]

    Jing Wang, Yufan Zheng (Co-primary), Yunzhe Ni (Co-primary), Chenren Xu, Feng Qian, Wangyang Li, Wantong Jiang, Yihua Cheng, Zhuo Cheng, Yuanjie Li, Xiufeng Xie, Yi Sun, Zhongfeng Wang
    ACM International Conference on Mobile Computing and Networking, Los Cabos, Mexico, October 2019
  6. Occlumency: Privacy-preserving Remote Deep-learning Inference Using SGX

    Taegyeong Lee, Zhiqi Lin, Saumay Pushp, Caihua Li, Yunxin Liu, Youngki Lee, Fengyuan Xu, Chenren Xu, Junehwa Song, Lintao Zhang
    ACM International Conference on Mobile Computing and Networking, Los Cabos, Mexico, October 2019
  7. SoftStage: Content Staging for Vehicular Content Delivery in the eXpressive Internet Architecture

    Jing Wang, Chenren Xu, Xiuming Wang, Wangyang Li, Zhenyi Li, Shuang Jiang, Peter Steenkiste
    IEEE International Conference on Distributed Computing System, Dallas, Texas, USA, July 2019
  8. Accelerating Mobile Applications at the Network Edge with Software-Programmable FPGAs

    Shuang Jiang, Dong He, Chenxi Yang, Chenren Xu, Guojie Luo, Yang Chen, Yunlu Liu, Jiangwei Jiang
    IEEE International Conference on Computer Communications, Honolulu, Hawaii, USA, April 2018
  9. PassiveVLC: Enabling Practical Visible Light Backscatter Communication for Battery-free IoT Applications

    Xieyang Xu, Yang Shen (Co-primary), Junrui Yang, Chenren Xu, Guobin Shen, Guojun Chen, Yunzhe Ni
    ACM International Conference on Mobile Computing and Networking, Snowbird, Utah, USA, October 2017
  10. Monitoring a Person's Heart Rate and Respiratory Rate on a Shared Bed Using Geophones

    Zhenhua Jia, Amelie Bonde, Sugang Li, Chenren Xu, Jingxian Wang, Yanyong Zhang, Richard Howard, Pei Zhang
    ACM International Conference on Embedded Networked Sensor Systems, Delft, The Netherlands, Nov. 2017
  11. WiDir: Walking Direction Estimation Using Wireless Signals

    Dan Wu, Daqing Zhang, Chenren Xu, Yasha Wang, Hao Wang
    ACM International Joint Conference on Pervasive and Ubiquitous Computing, Heidelberg, Germany, Sept. 2016
  12. Handling a trillion (unfixable) flaws on a billion devices: Rethinking network security for the Internet-of-Things

    Tianlong Yu, Vyas Sekar, Srinivasan Seshan, Yuvraj Agarwal, Chenren Xu
    ACM Workshop on Hot Topics in Networks, Philadelphia, Pennsylvania, USA, November 2015

Please refer to Google Scholar for complete list.


Yue WuPKU CS'20Team member, SIGCOMM'20 (Co-primary), MobiCom'20, BS thesisCS PhD of Yale
Yihua ChengPKU CS'20Team member (Yuanpei class), MobiCom'19, JSAC'20, BS thesisCS PhD of UChicago
Zhiyao MaPKU CS'20Team member (Turing class), INFOCOM'20, JSAC'20, BS thesisCS PhD of Yale*
Zihang WuPKU CS'20P/T team member (Turing class)CS MS of ETH Zurich
Haonan WangPKU CS'20Team member (Yuanpei class), BS thesisCS MS of CMU
Shixun WuPKU CS'20P/T team member (Turing class)EE MS of Columbia
Xieyang XuPKU CS'19Team member, MobiCom'17 (Co-primary), BS thesisCS PhD of UW*
Guojun ChenPKU CS'19Team member, BS thesis, MobiCom'20 (Co-primary)CS PhD of Yale
Taide LiuPKU CS'19Team member, BS thesisTBD
Yunfeng GaoPKU CS'19Team member, APNet'19, BS thesisCS MS of UC Berkeley
Kuntai DuPKU CS'19Team member since Fall'18, BS thesis, MobiCom'20CS PhD of UChicago
Dong HeFDU CS'19Summer intern, INFOCOM'18CS PhD of UW
Chenxi YangFDU CS'19Summer intern, INFOCOM'18CS PhD of UT Austin
Shihan LinFDU CS'19Summer internCS PhD of Duke
Yang ShenPKU CS'18Team member, MobiCom'17 (Co-primary), BS thesisPony.ai
Wantong JiangPKU CS'18Team member, BS thesis, MobiCom'19CS MS of Stanford
Caihua LiPKU CS'18Team member, BS thesis, MobiCom'19CS PhD of Yale
Lei YangPKU CS'18P/T team member, IEEE SPM'18 featured articleCS PhD of MIT
Wangyang LiPKU CS'18Team member, BS thesis, MobiCom'19CS PhD of UT Austin
Yufan ZhengPKU CS'18Team member, BS thesis, MobiCom'19 (co-primary)CS PhD of UMD
Jieqi ShiPKU CS'18P/T team memberCS PhD of HKUST
Siyu YaoPKU CS'18P/T team memberCS MS of Cornell Tech
Zhenyi LiPKU CS'17Team member, BS thesis, ICDCS'19ECE MS of CMU
Qiuyue XuePKU EE'17Team member, BS thesisCS PhD of UW*
Jingxian WangBUPT EE'17P/T team member, SenSys'17ECE PhD of CMU
Zhuqi LiPKU CS'17P/T team memberCS PhD of Princeton
Junrui YangPKU CS'16Team member, BS thesis, MobiCom'17 (Co-primary)CS PhD of Stanford
Yunting LiuPKU CS'16Team member, BS thesisCS MS of CMU
Tianchong JiangPKU EE'16Team member, BS thesisEE MS of GaTech
Shuang JiangPKU CS'16Team member, BS/MS thesis, INFOCOM'18/20 (Primary)Tencent