NDLI: On the unequal bandwidth share in LonWorks control networks

Content Provider	IEEE Xplore Digital Library
Author	Miskowicz, M.
Copyright Year	2009
Description	Author affiliation: AGH University of Science and Technology, Department of Electronics, Al. Mickiewicza 30, Kraków, Poland (Miskowicz, M.)
Abstract	In the paper, the problem of unequal bandwidth share among the devices introduced by the random scheme of LonTalk Media Access Control protocol is discussed. It is shown that the unfair allocation of communication resources is an unavoidable part of LonTalk operation in most load scenarios. Unfairness in accessing the channel results in a reduction of the bandwidth available to particular nodes. On the other hand, the channel access unfairness increases the mean channel utilization. There is a tradeoff between the access unfairness level and fairness recovery time: the possible inequality in sharing the bandwidth is greater for the light channel load but the fairness recovery time is then faster. Fortunately, the predictive p-CSMA unfairness has not tendency to escalate but is stabilized by the mechanism of a negative feedback.
Starting Page	28
Ending Page	36
File Size	1661912
Page Count	9
File Format	PDF
ISBN	9781424441099
DOI	10.1109/SIES.2009.5196188
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-08
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Access protocols Media Access Protocol Multiaccess communication Propagation delay Space technology Throughput Paper technology Artificial intelligence Resource management Communication system performance Carrier sense multiaccess Modeling
Content Type	Text
Resource Type	Article

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