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Wireless IEEE 802.11-Based Networking Approaches for Industrial Networked Systems

Wireless IEEE 802.11-Based Networking Approaches for Industrial Networked Systems
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Author(s): Ricardo Moraes (Universidade Federal de Santa Catarina, Brazil) and Francisco Vasques (Universidade do Porto, Portugal)
Copyright: 2013
Pages: 20
Source title: Embedded Computing Systems: Applications, Optimization, and Advanced Design
Source Author(s)/Editor(s): Mohamed Khalgui (Xidian University, China), Olfa Mosbahi (University of Carthage, Tunisia) and Antonio Valentini (O3neida Europe, Belgium)
DOI: 10.4018/978-1-4666-3922-5.ch014

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Abstract

During the last few years, the demand for Real-Time (RT) communication has been steadily increasing due to a wide range of new applications. Remarkable examples are VoIP (Voice over IP) and Networked Control Systems (NCS). For such RT applications, the support of timely communication services is one of the major requirements. The purpose of this chapter is to survey the state-of-the-art on RT communication in CSMA-based networks and to identify the most suitable approaches to deal with the requirements imposed by next generation communication systems. This chapter focuses on one of the most relevant solutions that operate in shared broadcast environments, according to the CSMA medium access protocol, the IEEE 802.11 standard. From this survey, it becomes clear that traditional CSMA-based networks are not able to deal with the requirements imposed by next generation communication systems. More specifically, they are not able to handle uncontrolled traffic sources sharing the same broadcast environment.

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