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	SIMULATION MODEL OF LOCAL COMPUTER NETWORK WITH CHANNEL AGGREGATION AND RANDOM ACCESS METHOD AT REDUNDANT TRANSFER</div>

Носков Илья Игоревич, Bogatyrev Vladimir A, Slastikhin Ivan  A.

doi:10.17586/2226-1494-2018-18-6-1047-1053

2018 , VOLUME 18, NUMBER 8 ( november- december 2018 )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

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Nikiforov
Vladimir O.
D.Sc., Prof.

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doi: 10.17586/2226-1494-2018-18-6-1047-1053

SIMULATION MODEL OF LOCAL COMPUTER NETWORK WITH CHANNEL AGGREGATION AND RANDOM ACCESS METHOD AT REDUNDANT TRANSFER

Носков И.И., V. A. Bogatyrev, I. A. Slastikhin

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Noskov I.I., Bogatyrev V.A., Slastikhin I.A. Simulation model of local computer network with channel aggregation and random access method at redundant transfer. Scientific and Technical Journal of Information Technologies, Mechanics and Optics , 2018, vol. 18, no. 6, pp. 1047–1053 (in Russian). doi: 10.17586/2226-1494-2018-18-6-1047-1053.

Abstract

Subject of Research.Computer network simulation model with random access to channels and redundant transfer is developed and researched. Efficiency of this model application on configurations with different redundancy coefficient is defined. The efficiency of redundant transfer in computer networks based on common bus topology is studied. Method. The efficiency analysis of the redundant packet transmissions is carried out on the basis of computer network simulation modeling. The performance index is determined on the basis of the multiplicative criterion, which takes into account the error-free transmission and the average time margin relative to the maximum permissible transmission delay. Main Results. Computer network model with common bus topology is developed. This model gives the possibility to transmit packets via several channels and provides redundant transfer of data. Intensity and redundancy coefficient are changed while experiments were carried out. Simulation model of computer network with redundant transfer opportunity is developed. On the basis of obtained results in simulation experiments the domain of application efficiency is defined for redundant transmissions in networks based on random access and limited in average time of delivery. Practical Relevance. The presented results can be used in the design of high-reliable computer systems including computer systems providing real-time services.

Keywords: computer networks, redundant transfer, simulation modeling, channel aggregation, random access method

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