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Researchers' Work from Amirkabir University of Technology Focuses on Electronics and Communications (Saturated distributed coordination function...

August 6, 2014



Researchers' Work from Amirkabir University of Technology Focuses on Electronics and Communications (Saturated distributed coordination function Markov model for noisy soft-real-time industrial wireless networks)

By a News Reporter-Staff News Editor at Telecommunications Weekly -- A new study on Electronics and Communications is now available. According to news reporting out of Tehran, Iran, by VerticalNews editors, research stated, "The use of wireless technology in industrial networks is becoming more popular due to its numerous advantages. Providing an accurate model to study its performance parameters, is an essential step in designing a reliable and real-time industrial wireless network protocol."

Our news journalists obtained a quote from the research from the Amirkabir University of Technology, "Most of the existing models are accurate only for data networks which have large packet payloads and high signal to noise ratio (SNR) characteristics, and cannot be applied to study the performance of industrial networks which have short packet lengths and are used in harsh and noisy environments. In this paper a novel three-dimensional discrete-time Markov chain (DTMC) model has been proposed for the IEEE 802.11-based industrial wireless networks using the distributed coordination function (DCF) as the medium access control (MAC) mechanism. It considers both causes of the backoff freezing: busy channel and the successive inter-frame space (IFS) waiting phase. In this way, it provides a much more accurate estimation of the channel access and collision probabilities, resulting in more accurate network metric calculations."

According to the news editors, the research concluded: "Also, based on the proposed model, a simple and accurate packet delay analysis is provided in the worst-case saturated traffic and error-prone channel condition which in comparison with similar works provides more accurate results."

For more information on this research see: Saturated distributed coordination function Markov model for noisy soft-real-time industrial wireless networks. IET Communications, 2014;8(10):1724-1735. IET Communications can be contacted at: Inst Engineering Technology-Iet, Michael Faraday House Six Hills Way Stevenage, Hertford SG1 2AY, England. (The Institution of Engineering and Technology - www.theiet.org/; IET Communications - www.ietdl.org/IET-COM)

Our news journalists report that additional information may be obtained by contacting M. Maadani, Amirkabir Univ Technol, Dept. of Elect Engn, Tehran, Iran. Additional authors for this research include S.A. Motamedi, H. Safdarkhani and M. Parsa.

Keywords for this news article include: Iran, Asia, Tehran, Wireless Network, Wireless Technology, Electronics and Communications

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Telecommunications Weekly


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