On the effect of interference on Wi-Fi-based Wireless Networked Control Systems

Author

Abdel Reheem, E.E. ; El Faramawy, Y.I. ; Halawa, H.H. ; Ibrahim, M.A. ; Elhamy, A. ; Refaat, T.K. ; Daoud, R.M. ; Amer, H.H.

Author_Institution

Electron. Eng. Dept., American Univ. in Cairo, Cairo, Egypt

fYear

2012

fDate

18-20 July 2012

Firstpage

1

Lastpage

4

Abstract

This study investigates a Wi-Fi-based Wireless Networked Control System. This system is first modified in order to enhance resistance to interference. Then, it is subjected to different types of interference. The system consists of a workcell containing 30 sensors, 30 actuators and 1 controller. All forms of interference modeled focus on the operating frequency band used by the control nodes. All simulations are conducted on OPNET Network Modeler and system performance is measured in terms of packet end-to-end delay and correct packet transmission/reception. All results are subjected to a 95% confidence analysis. The results show that intentional jamming is more damaging than medium congestion, which in turn is more damaging than network congestion.

Keywords

control engineering computing; delays; jamming; networked control systems; radiofrequency interference; wireless LAN; wireless sensor networks; OPNET network modeler; Wi-Fi; actuator; confidence analysis; controller node; end-to-end delay; interference effect; jamming; medium network congestion; packet transmission-reception; sensor; wireless networked control system; Actuators; Delay; Interference; Jamming; Sensors; Wireless communication; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2012 8th International Symposium on

Conference_Location

Poznan

Print_ISBN

978-1-4577-1472-6

Type

conf

DOI

10.1109/CSNDSP.2012.6292781

Filename

6292781