TY - JOUR
T1 - Experimental controller tuning and QoS optimization of a wireless transmission scheme for real-time remote control applications
AU - Nikolakopoulos, George
AU - Panousopoulou, Athanasia
AU - Tzes, Anthony
N1 - Funding Information:
This work was partially supported by (a) the Greek Ministry's of Education Herakleitos Research Program, (b) the HYCON Network of Excellence (contract number FP6-IST-511368), (c) EU's FP6 Technologies-004536 RUNES research program, and (d) the European Social Fund (75%), the Greek Secretariat Research and Technology (25%) and ATMEL HELLAS S.A., within the framework of Measure 8.3 of the Operational Programme “Competitiveness” and the 3rd Community Support Programme (PENED03868).
PY - 2008/3
Y1 - 2008/3
N2 - In this paper an experimental optimization of a wireless (802.11b) transmission scheme, coupled to the tuning process of the controller parameters, for real-time control applications is presented. In congested wireless networked controlled systems (WNCS), there is considerable loss of data-packets in the transmission process between the client and server sides. Accordingly the quality of service (QoS) suffers and the system's performance deteriorates. An integrated framework is proposed, which monitors the QoS-factor, and (a) adjusts the data retransmission attempts, and (b) periodically tunes the controller's parameters. Experimental studies on a WNCS-prototype are used for the optimization procedure. These studies indicate the need for a compromise between the achieved QoS, the network's throughput, and the selected sampling period.
AB - In this paper an experimental optimization of a wireless (802.11b) transmission scheme, coupled to the tuning process of the controller parameters, for real-time control applications is presented. In congested wireless networked controlled systems (WNCS), there is considerable loss of data-packets in the transmission process between the client and server sides. Accordingly the quality of service (QoS) suffers and the system's performance deteriorates. An integrated framework is proposed, which monitors the QoS-factor, and (a) adjusts the data retransmission attempts, and (b) periodically tunes the controller's parameters. Experimental studies on a WNCS-prototype are used for the optimization procedure. These studies indicate the need for a compromise between the achieved QoS, the network's throughput, and the selected sampling period.
KW - 802.11b protocol
KW - Gain scheduling
KW - Networked controlled systems
KW - QoS
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U2 - 10.1016/j.conengprac.2007.04.015
DO - 10.1016/j.conengprac.2007.04.015
M3 - Article
AN - SCOPUS:36748998824
SN - 0967-0661
VL - 16
SP - 333
EP - 346
JO - Control Engineering Practice
JF - Control Engineering Practice
IS - 3
ER -