Next Article in Journal
Detection of Carcinoembryonic Antigens Using a Surface Plasmon Resonance Biosensor
Previous Article in Journal
Short-term Influences on Suspended Particulate Matter Distribution in the Northern Gulf of Mexico: Satellite and Model Observations
Article Menu

Export Article

Open AccessArticle
Sensors 2008, 8(7), 4265-4281;

Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems

College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China
State Key Lab of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China
School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210042, China
Faculty of Information Technology, Queensland University of Technology, Brisbane QLD 4001, Australia
Authors to whom correspondence should be addressed.
Received: 31 May 2008 / Revised: 7 July 2008 / Accepted: 8 July 2008 / Published: 15 July 2008
Full-Text   |   PDF [243 KB, uploaded 21 June 2014]


There is a trend towards using wireless technologies in networked control systems. However, the adverse properties of the radio channels make it difficult to design and implement control systems in wireless environments. To attack the uncertainty in available communication resources in wireless control systems closed over WLAN, a cross-layer adaptive feedback scheduling (CLAFS) scheme is developed, which takes advantage of the co-design of control and wireless communications. By exploiting crosslayer design, CLAFS adjusts the sampling periods of control systems at the application layer based on information about deadline miss ratio and transmission rate from the physical layer. Within the framework of feedback scheduling, the control performance is maximized through controlling the deadline miss ratio. Key design parameters of the feedback scheduler are adapted to dynamic changes in the channel condition. An eventdriven invocation mechanism for the feedback scheduler is also developed. Simulation results show that the proposed approach is efficient in dealing with channel capacity variations and noise interference, thus providing an enabling technology for control over WLAN. View Full-Text
Keywords: wireless control systems; feedback scheduling; cross-layer; event-triggered wireless control systems; feedback scheduling; cross-layer; event-triggered
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Xia, F.; Ma, L.; Peng, C.; Sun, Y.; Dong, J. Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems. Sensors 2008, 8, 4265-4281.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top