Imperial College London
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Laksh Bhatia

Faculty of Engineering, Department of Computing

Research Postgraduate
 
 
 
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Contact

 

laksh.bhatia16 Website

 
 
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Location

 

254ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bhatia:2021:10.1145/3418528,
author = {Bhatia, L and Tomic, I and Fu, A and Breza, M and McCann, J},
doi = {10.1145/3418528},
journal = {ACM Transactions on Cyber-Physical Systems},
pages = {1--27},
title = {Control communication co-design for wide area cyber-physical systems},
url = {http://dx.doi.org/10.1145/3418528},
volume = {5},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Wide Area Cyber-Physical Systems (WA-CPSs) are a class of control systems that integrate low-powered sensors, heterogeneous actuators and computer controllers into large infrastructure that span multi-kilometre distances. Current wireless communication technologies are incapable of meeting the communication requirements of range and bounded delays needed for the control of WA-CPSs. To solve this problem, we use a Control-Communication Co-design approach for WA-CPSs, that we refer to as the C3 approach, to design a novel Low-Power Wide Area (LPWA) MAC protocol called Ctrl-MAC and its associated event-triggered controller that can guarantee the closed-loop stability of a WA-CPS. This is the first paper to show that LPWA wireless communication technologies can support the control of WA-CPSs. LPWA technologies are designed to support one-way communication for monitoring and are not appropriate for control. We present this work using an example of a water distribution network application which we evaluate both through a co-simulator(modelling both physical and cyber subsystems) and test bed deployments. Our evaluation demonstrates full control stability, with up to 50% better packet delivery ratios and 80% less average end-to-end delays when compared to a state of the art LPWA technology. We also evaluate our scheme against an idealised, wired,centralised, control architecture and show that the controller maintains stability and the overshoots remain within bounds.
AU  - Bhatia,L
AU  - Tomic,I
AU  - Fu,A
AU  - Breza,M
AU  - McCann,J
DO  - 10.1145/3418528
EP  - 27
PY  - 2021///
SN  - 2378-962X
SP  - 1
TI  - Control communication co-design for wide area cyber-physical systems
T2  - ACM Transactions on Cyber-Physical Systems
UR  - http://dx.doi.org/10.1145/3418528
UR  - https://dl.acm.org/doi/10.1145/3418528
UR  - http://hdl.handle.net/10044/1/82350
VL  - 5
ER  -
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