Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems

Details Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems

2008-09-29

arxiv.org/abs/0809.4924v1

Sensors, 8(7): 4265-4281, 2008

Computer Science

Networking and Internet Architecture

17 pages, 12 figures; Open Access at http://www.mdpi.org/sensors/papers/s8074265.pdf

Scientific paper

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 cross-layer 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 event-driven 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.

Affiliated with

Also associated with

No associations

Rating

Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cross-Layer Adaptive Feedback Scheduling of Wireless Control Systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-48997