Longfei Shangguan
Senior researcher, Microsoft Cognition

I'm a senior researcher at Microsoft Cognition, Redmond. Before joining Microsoft, I did three years postdoc at Princeton University, working with Prof.Kyle Jamieson on wireless and mobile systems. I received my Ph.D degree in 2015 at The Hong Kong University of Science and Technology, under the supervision of Prof.Yunhao Liu and Prof. Ke Yi.

RESEARCH: I care about IoT systems, from novel applications, security, networking, all the way down to the PHY-layer&Hardware architecture.
  • IoT Application and Secuirty: [MobiCom'21], [NDSS'20], [MobiSys'17], [MobiSys'16], [CONEXT'16], [SenSys'15'a,'b], [NSDI'15]
  • MAC-/PHY-layer&Hardware architecture: [MobiCom'20], [SenSys'20], [NSDI'19], [MobiCom'19], [Sigcomm'18], [Sigcomm'17]

  • Communication and connectivity

Aloba: Rethinking ON-OFF Keying Modulation for Ambient LoRa Backscatter
Xiuzhen Guo, Longfei Shangguan, Yuan He, Jia Zhang, Haotian Jiang, Awais Ahmad Siddiq, and Yunhao Liu
SenSys'20, Yokohama, Japan.

Towards Flexible Wireless Charging for Medical Implants Using Distributed Antenna System
Xiaoran Fan, Longfei Shangguan, Rich Howard, Yanyong Zhang, Yao Peng, Jie Xiong, Yunfei Ma, and Xiang-Yang Li
Mobicom'20, London, UK.

Towards Programming the Radio Environment with Large Arrays of Inexpensive Antennas
Zhuqi Li, Yaxiong Xie, Longfei Shangguan, Rotman Ivan Zelaya, Jeremy Gummeson, Wenjun Hu, and Kyle Jamieson.
NSDI'19, Boston, USA.

PLoRa: Passive Long-Range Data Networks from Ambient LoRa Transmissions
Yao Peng*, Longfei Shangguan*, Yue Hu, Yujie Qian, Xianshang Lin, Xiaojiang Chen, Dingyi Fang, and Kyle Jamieson. (*: co-primary, alphabet order)
Sigcomm'18, Budapest, Hungary.
Paper ·  Demo

Programmable Radio Environments for Smart Spaces
Allen Walkie, Longfei Shangguan, Jeremy Gummeson, Wenjun Hu, and Kyle Jamieson.
HotNets'17, Palo Alto, CA, USA.

Wi-Fi Goes to Town: Rapid Picocell Switching for Wireless Transit Networks
Zhenyu Song, Longfei Shangguan, and Kyle Jamieson.
Sigcomm'17, Los Angeles, CA, USA.
Paper ·  Video

  • Sensing and cyber security

HeadFi: Bringing Intelligence to All Headphones
Xiaoran Fan, Longfei Shangguan, Siddharth Rupavatharam, Yanyong Zhang, Jie Xiong, Yunfei Ma, and Richard Howard.
MobiCom'21, New Orleans, United States.
Paper ·  Video

Metamorph: Injecting Inaudible Commands into Over-the-air Voice Controlled Systems
Tao Chen, Longfei Shangguan, Zhenjiang Li, and Kyle Jamieson.
NDSS'20, San Diego, CA, USA.

Enabling Gesture-based Interactions With Object
Longfei Shangguan, Zimu Zhou, and Kyle Jamieson.
MobiSys'17, Niagara Falls, NY, USA.
Paper ·  Video

Leveraging Electromagnetic Polarization in a Two-Antenna Whiteboard in the Air
Longfei Shangguan, and Kyle Jamieson.
CoNEXT'16, Irvine, CA, USA.

The Design and Implementation of a Mobile RFID Tag Sorting Robot
Longfei Shangguan, and Kyle Jamieson.
MobiSys'16, Singapore.
Paper ·  Video

Relative Localization of RFID Tags using Spatial-temporal Phase Profiling
Longfei Shangguan, Zheng Yang, Alex. Liu, Zimu Zhou, and Yunhao Liu.
NSDI'15, Oakland, CA, USA..

ShopMiner: Mining Customer Shopping Behavior in Physical Clothing Stores with Passive RFIDs
Longfei Shangguan, Zimu Zhou, Xiaolong Zheng, Lei Yang, Yunhao Liu, and Jinsong Han
SenSys'15, Seoul, South Korea.

Supervision: I'm very fortunately to work with the following students as a research mentor or a close callaborator.
  • Xiuzhen Guo, 2019-current, Ph.D. student at Tsinghua University, SenSys'20
  • Xiaoran Fan, 2017-current, senior researcher at Samsung AI Lab at New York city, MobiCom'20, MobiCom'21
  • Tao Chen, 2017-current, Ph.D. student at City university of Hong Kong, NDSS'20
  • Zhenyu Song, 2017-2018, Ph.D. student at Princeton University, Sigcomm'17
  • Sicong Liu, 2016-2018, associate professor at Northwestern Polytechnical University, Ubicomp'17 distinguished paper

Professional Services
  • 2021: SenSys, Infocom (distinguished PC member), SECON, EWSN, ICDCS
  • 2020: Mobicom, Infocom, SECON, EWSN, MASS
  • 2019: SenSys, EWSN, SECON, PerCom, ICCCN
  • 2018: SECON, PerCom, MobiSys demo, ICCCN