You are here: Home :: Area NEM :: Engineering :: Automation

Lothar Litz, Oliver Gabel

Feedback Control via AmI-Networks – Managing the Limited Resource Problem by QoS-Adaptive Control

Keywords: networked control systems, Ambient Intelligence, QoS, adaptive control

Ambient Intelligence (AmI) systems are typically based on low-energy and low-performance nodes which are connected by wireless ad-hoc networks. Due to these constraints communication is restricted as well, as can be seen from the quality of service (QoS) parameters. If feedback control is used in AmI systems, two main effects are limiting the control performance and threatening the control stability: the variable network delays and the stochastic packet losses. The paper describes an approach taking into account these crucial parameters at the same time. This problem is solved by adapting the control law to the measured QoS parameters of the ad-hoc network. An example is discussed to show the advantages of the proposed QoS-adaptive control.

at – Automatisierungstechnik, Oldenbourg Wissenschaftsverlag

Print ISSN: 0178-2312
Volume: 54, 09/2006
Pages: 430 - 436

Show full article (external site)

Show all available items of this journal

 

Area NEM