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Robust real-time wireless control platform compensating for packet loss

Title
Robust real-time wireless control platform compensating for packet loss
Authors
Choi, R.-H.[Choi, Rock Hyun]Lee, S.-C.[Lee, Sang C.]Yoo, J.[Yoo, Joon Hyuk]
DGIST Authors
Choi, R.-H.[Choi, Rock Hyun]; Lee, S.-C.[Lee, Sang C.]
Issue Date
2012
Citation
Journal of Institute of Control, Robotics and Systems, 18(8), 768-773
Type
Article
Article Type
Article
Keywords
Co-SimulationCompensation TechniquesEstimationEwmaInverted PendulumLimited BandwidthLoss CompensationMATLAB/SimulinkMoving AveragesNetworked Control SystemsPacket LossPerformance EvaluationSystem StabilityTime Varying ChannelTruetimeValue EstimationWireless CommunicationsWireless ControlWireless Networked Control SystemsWireless Telecommunication SystemsWncs
ISSN
1976-5622
Abstract
Packet loss compensation techniques are increasingly important to stable remote control over wireless communication in WNCS (Wireless Networked Control Systems). Its time varying channels, limited bandwidth, interference, and poor signal not only leads to packet loss or latency, but also can negatively affect performance and system stability. This paper presents a compensation technique exploiting an EWMA (Exponentially Weighed Moving Average)-based value estimator to clarify the influence of packet loss on the overall WNCS behavior. As an example of actuator to be remotely controlled, a rotary-type inverted pendulum has been considered, and modeled. Performance evaluation results through Matlab/Simulink and Truetime co-simulation confirm the superiority of the proposed value estimation method over previous approaches. © ICROS 2012.
URI
http://hdl.handle.net/20.500.11750/3404
DOI
10.5302/J.ICROS.2012.18.8.768
Publisher
Institute of Control, Robotics and Systems
Related Researcher
Files:
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Collection:
Convergence Research Center for Future Automotive Technology1. Journal Articles
Convergence Research Center for Future Automotive Technology1. Journal Articles


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