By Topic

A Novel Feedback Scheduling Approach for Resource-Constrained Network Control System

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Qi-Zhang ; Res. Inst. of Autom., East China Univ. of Sci. & Technol., Shanghai ; Xian-ming Tang ; Jin-shou Yu

In networked control system (NCS), increasing network workload would make network resource scare and yield unaccepted QoC of subsystems. Deadband scheduling is proved a better scheduling method than traditional static schedule to solve the problem by reducing network traffic to improve overall system's QoC. However, fixed deadband range in primal deadband scheduling couldn't be dynamically adjusted with respect to network utilization and control performance variation of each subtask In the context of control and network scheduling co-design, model based deadband feedback scheduling approach (MBDFS) proposed in this paper is applied to enhance QoC of the overall system under overloaded condition. In this approach, a task that deadband feedback control should be carried on is dynamically selected and the deadband range is adjusted based on a specified mathematic model which takes into account dynamic changes of subtask's own QoC as well as network utilization. Simulation results indicate the scheduling approaches proposed can effectively improve overall system's QoC in the circumstance of narrow network bandwidth and overload network condition.

Published in:

Networked Computing and Advanced Information Management, 2008. NCM '08. Fourth International Conference on  (Volume:1 )

Date of Conference:

2-4 Sept. 2008