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Extending real-time networks over WiFi: related issues and first developments

Flores Pulgar, Toni Fernando and Scharbarg, Jean-Luc and Jaffrès-Runser, Katia and Fraboul, Christian Extending real-time networks over WiFi: related issues and first developments. (2013) In: 25th Euromicro Conference on Real-Time Systems (ECRTS13), 9 July 2013 - 12 July 2013 (Paris, France). (Unpublished)

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The flexibility of wireless connectivity is appealing in the context of real-time industrial networks. This paper discusses the use of wireless communication protocols to interconnect remotely located fieldbuses. The focus of this paper is to analyze the feasibility and design issues related to this type of hybrid real-time network architecture. Investigations are presented by addressing an interconnection through the well-mastered WiFi technology. On an example architecture, we discuss the impact of the different distributed medium access protocols available (DCF, EDCA) on the real-time flows. We outline the main design issues related to these choices and illustrate them on a first case study where remotely located CAN buses are interconnected through an IEEE802.11g network in DCF mode. Using this very simple and cost-effective architecture, we show as a first result that transmitting soft real-time data over such an architecture is feasible.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-01143765
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
Deposited On:20 Apr 2015 09:28

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