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Home / Archive / simulation operation model for radio equipment of computer-aided data-exchange system
Simulation Operation Model for Radio Equipment of Computer-aided Data-exchange System
Tatiana Ivanovna Davydova[e-mail:
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]T. Davydova,
Ilya Victorovich Tkachev[e-mail:
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] I. Tkachev
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Simulation Operation Model for Radio Equipment of Computer-aided Data-exchange System
The article describes a simulation model of radio-equipment operation for computer-aided data-exchange
system created in order to evaluate influence of failure rate of radio-equipment devices and time for
their recovery, on probability of uninterruptible data-exchange between computer-aided data-exchange
systems of two ships during a long-time period.
The model of the operation process of radio equipment is developed using a mathematical scheme of
queueing system - Q-scheme. The model response is an evaluation of the probability of uninterruptible
data-exchange between computer-aided data-exchange systems of two ships during a long-time period.
The model factors are the following reliability parameters of each radio equipment: failure rate and recovery
time. The article also gives a block-diagram of general algorithm of the radio-equipment operation process
and block-diagrams of procedures to define and change states of radio-equipment devices simulated by
queueing-system channels.
The simulation model is at the level of software implementation. The result of the software implementation
of the simulation model with values of the reliability parameters of radio-equipment devices, given by
users, is an interval evaluation of probability of uninterruptible data-exchange between computer-aided data-exchange systems of two ships during a time period given by users. The required accuracy and
adequacy of the evaluation are ensured by a required number of software iterations, calculated by the
programme, with the same initial data.
To evaluate the importance of factors (reliability parameters of radio-equipment devices), a variance
analysis of each of them with response has been made. A combination of achievable factor values when
response values becomes the largest, has been defined by a method of coordinate raising. Simulation model, channel state, variance analysis, method of coordinate raising.
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