C
Chengjie Wu
Researcher at Washington University in St. Louis
Publications - 20
Citations - 1007
Chengjie Wu is an academic researcher from Washington University in St. Louis. The author has contributed to research in topics: Wireless sensor network & WirelessHART. The author has an hindex of 14, co-authored 19 publications receiving 882 citations. Previous affiliations of Chengjie Wu include Yahoo! & Tsinghua University.
Papers
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Journal ArticleDOI
Real-Time Wireless Sensor-Actuator Networks for Industrial Cyber-Physical Systems
Chenyang Lu,Abusayeed Saifullah,Bo Li,Mo Sha,Humberto Gonzalez,Dolvara Gunatilaka,Chengjie Wu,Lanshun Nie,Yixin Chen +8 more
TL;DR: A series of recent advances in real-time WSANs for industrial control systems are reviewed, with a focus on cyber-physical codesign of wireless control systems that integrate wireless and control designs.
Journal ArticleDOI
Near optimal rate selection for wireless control systems
TL;DR: This paper addresses the scheduling-control co-design problem of determining the optimal sampling rates of feedback control loops sharing a Wireless Hart network by formulate rate selection as a differentiable convex optimization problem that provides a closed-form solution through a gradient descent method.
Proceedings ArticleDOI
Incorporating emergency alarms in reliable wireless process control
TL;DR: The results demonstrate the first systematic approach to incorporate emergency alarms into wireless process control enables timely emergency handling, while allowing regular feedback control loops to effectively share resources in WSANs during normal operations.
Journal ArticleDOI
Empirical Study and Enhancements of Industrial Wireless Sensor–Actuator Network Protocols
TL;DR: A novel channel hopping algorithm is developed that utilizes far away channels for transmissions and prevents links sharing the same destination from using channels with strong correlations, and demonstrates that this algorithm can significantly improve network reliability and energy efficiency.
Proceedings ArticleDOI
Schedulability Analysis under Graph Routing in WirelessHART Networks
Abusayeed Saifullah,Dolvara Gunatilaka,Paras Babu Tiwari,Mo Sha,Chenyang Lu,Bo Li,Chengjie Wu,Yixin Chen +7 more
TL;DR: This paper presents the first worst-case end-to-end delay analysis for periodic real-time flows under reliable graph routing and can be used to quickly assess the schedulability of real- time flows with stringent requirements on both reliability and latency.