COMMUNICATION NETWORK RELIABILITY EVALUATION USING THE SIMULATION APPROACH

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13 апрел 2021

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COMMUNICATION NETWORK RELIABILITY EVALUATION USING THE SIMULATION APPROACH

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Currently, there is a sufficient number of works devoted to the method of calculating the reliability of data transmission networks. Most of these methods are aimed at calculating the exact values of the characteristics of structural connectivity, taking into account the flows of failures and recovery of the communication network elements. In this case, the incoming load is not considered. Communication network reliability is assessed taking into account not only the flows of the element failures and restorations, but also the network management methods and transmitted information flow. As a result, the characteristics is more informative than the structural reliability indicator and allows determining the compliance degree of the developed and existing networks with their functional purpose. To assess the communication network reliability, a channel model with high reliability is included in the developed network simulation model. Therefore, it becomes possible to assess the network reliability, taking into account the failures and restorations of its elements, the control algorithm and message flows entering the network. The dependence graph of the maximum delay value on the incoming flow value is presented taking into account the failures and restorations of the communication channels. Using the graph, it is possible to determine quickly (without using a simulation model for calculations in each situation) the maximum network delay depending on the intesity of the incoming messages or solve the inverse maximum network problem throughout a given communication quality

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# recovery# reliability# failure# input flow rate# optimal

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https://eroi.uz/11.0008/A0421-0002

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