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Article

Analysis of Mean Access Delay in Variable-Window CSM

AGH University of Science and Technology, Department of Electronics, al. Mickiewicza 30, 30-059 Kraków, Poland
Sensors 2007, 7(12), 3535-3559; https://doi.org/10.3390/s7123535
Received: 10 October 2007 / Accepted: 21 December 2007 / Published: 21 December 2007
(This article belongs to the Special Issue Intelligent Sensors)
The paper addresses the problem of the mean access delay characteristics in termof the channel load for networked sensor/control systems in LonWorks/EIA-709 technology.The system modelling is focused on the Media Access Control protocol that provides theload prediction and determines the key network characteristics. The network model assumesthe consistency of load prediction between the nodes, and that the Transaction ControlSublayer does not introduce limitations on the data transmission. The latter means that thenumbers of concurrent outgoing transactions being in progress are unlimited. Furthermore, itis assumed that the destination addresses of transmitted messages are distributed rather thanconcentrated on particular nodes. The analytical approach based on Markov chains isapplied. The calculation of transition probabilities of the Markov chain is exemplified by theload scenario where all the transactions are acknowledged, unicast, and the optionalcollision detection is enabled. On the basis of the stochastic analysis, the probabilities of asuccessful transmission and collision, respectively, are computed. Furthermore, thenumerical results of the mean access delay are reported. The simulative validation ofanalytical results is provided. View Full-Text
Keywords: Carrier Sense Multiple Access (CSMA) protocols; Markov models; performance evaluation; Local Operating Networks (LonWorks); EIA-709 Carrier Sense Multiple Access (CSMA) protocols; Markov models; performance evaluation; Local Operating Networks (LonWorks); EIA-709
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MDPI and ACS Style

Miśkowicz, M. Analysis of Mean Access Delay in Variable-Window CSM. Sensors 2007, 7, 3535-3559. https://doi.org/10.3390/s7123535

AMA Style

Miśkowicz M. Analysis of Mean Access Delay in Variable-Window CSM. Sensors. 2007; 7(12):3535-3559. https://doi.org/10.3390/s7123535

Chicago/Turabian Style

Miśkowicz, Marek. 2007. "Analysis of Mean Access Delay in Variable-Window CSM" Sensors 7, no. 12: 3535-3559. https://doi.org/10.3390/s7123535

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