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Research Spending & Results

Award Detail

Doing Business As Name:University of Toledo
  • Liang Cheng
  • (419) 530-8196
Award Date:09/17/2021
Estimated Total Award Amount: $ 499,409
Funds Obligated to Date: $ 160,425
  • FY 2018=$160,425
Start Date:07/01/2021
End Date:09/30/2022
Transaction Type:Grant
Awarding Agency Code:4900
Funding Agency Code:4900
CFDA Number:47.070
Primary Program Source:040100 NSF RESEARCH & RELATED ACTIVIT
Award Title or Description:CPS: Breakthrough: Analysis, Identification and Mitigation of Delay Performance Bottlenecks of Network Infrastructure in Cyber-Physical Systems
Federal Award ID Number:2146968
DUNS ID:051623734
Parent DUNS ID:051623734
Program:CPS-Cyber-Physical Systems
Program Officer:
  • David Corman
  • (703) 292-8754

Awardee Location

Street:2801 W Bancroft St., MS 218
Awardee Cong. District:09

Primary Place of Performance

Organization Name:University of Toledo
Cong. District:09

Abstract at Time of Award

Modern societies are witnessing the prevalence of a wide assortment of distributed cyber-physical systems (CPS) built upon network infrastructure. International standards for mission-critical CPS applications, such as industrial process control systems and avionics, require their network infrastructure to provide deterministic delay performance. However, the problem of integrating CPS theoretical concepts with real-world network performance remains largely unexplored. This project addresses this open problem so that feedback control CPS in network-challenged spaces can be analyzed formally. The project result can be applied to many other CPS application domains involving real-time control and adaptation, such as vehicular control and communication systems, industrial process control, and network-on-chip systems. Broader impacts include developing publicly-available open-source software for the research community and educating a wide spectrum of audience, from high-school and undergraduate students to academic and industry researchers, by offering seminars and tutorials and organizing a workshop with strategies to maximize the participation of under-represented groups. The main goal of this project is to establish a systematic approach to the design, characterization, and refinement of network infrastructure in CPS as a breakthrough result for designing and implementing CPS with time-critical tasks. Different from existing studies relying on predefined or presumed device/system specifications, the new approach balances theoretical analyses with empirical evaluations by exploring network-calculus-based modeling of networking devices and traffic sources from measurements. This project also focuses on non-feedforward networks, in contrast to state-of-the-art methods targeting feedforward networks, and includes investigation of compositional, algebraic, and optimization-based approaches to delay performance analysis of non-feedforward networks and research on identification and mitigation of delay performance bottlenecks in networked CPS. This project will use PLC (Programmable Logic Controller)-based industrial automation systems for case studies, not only demonstrating the usage and capabilities of the systematic approach but also providing reference implementation of related algorithms. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

Publications Produced as a Result of this Research

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Yang, Huan and Cheng, Liang "Bounding Network-Induced Delays of Wireless PRP Infrastructure for Industrial Control Systems" ICC 2019 - 2019 IEEE International Conference on Communications (ICC), v., 2019, p.. doi: Citation details  

Zhou, Boyang and Cheng, Liang "A Reality-Conforming Approach for QoS Performance Analysis of AFDX in Cyber-Physical Avionics Systems" 2021 IEEE/ACM 29th International Symposium on Quality of Service (IWQOS), v., 2021, p.. doi: Citation details  

Serino, Anthony and Cheng, Liang "Real-Time Operating Systems for Cyber-Physical Systems: Current Status and Future Research" IEEE International Conference on Cyber Physical and Social Computing (CPSCom-2020), v.1, 2020, p.. doi: Citation details  

Zhang, Chuwen and Wang, Yi and Yao, Ruyi and Zhou, Boyang and Cheng, Liang and Xu, Yang and Li, Xiaoguang and Cheng, Jian and Liu, Bin "Packet-size aware scheduling algorithms in guard band for time sensitive networking" CCF Transactions on Networking, v.3, 2020, p.. doi: Citation details  

Yang, Huan and Cheng, Liang and Ma, Xiaoguang "Bounding network-induced delays for time-critical services in avionic systems using measurements and network calculus" Proceedings of the 10th ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS '19), v., 2019, p.. doi: Citation details  

Zhou, Boyang and Cheng, Liang "Mitigation of Scheduling Violations in Time-Sensitive Networking using Deep Deterministic Policy Gradient" FlexNets '21: Proceedings of the 4th FlexNets Workshop on Flexible Networks Artificial Intelligence Supported Network Flexibility and Agility, v., 2021, p.. doi: Citation details  

Yang, Huan and Cheng, Liang and Ma, Xiaoguang "Combining Measurements and Network Calculus in Worst-Case Delay Analyses for Networked Cyber-Physical Systems" IEEE INFOCOM 2019 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), v., 2019, p.. doi: Citation details  

Zhou, Boyang and Howenstine, Isaac and Limprapaipong, Siraphob and Cheng, Liang "A Survey on Network Calculus Tools for Network Infrastructure in Real-Time Systems" IEEE Access, v.8, 2020, p.. doi: Citation details  

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