The article discusses the issues of finding the main indicators of the quality of the
communication channel in computer networks when transmitting priority and non-priority data
at different frame lengths. To solve this problem, methods of the theory of queuing using Petri
nets are proposed. The proposed method for calculating the temporal and probabilistic
characteristics of computer networks allows determinining the main indicators of the quality of
the channel in a stationary mode when transmitting priority and non-priority data of computing
tools at various values of the input stream intensity. To simulate the transmission of priority and
non-priority frames, a color temporary Petri net is proposed. An algorithm is proposed for
determining the basic parameters of information transfer, based on the use of the Little formula
and allowing one to determine the number of frames in a queue, the average time a frame has
been in a queue, and other distinctive features of the algorithm include the use of the window
mode. The proposed technique allows to reduce the loss of priority frames of trajectory
information and ensuring their transmission in real time.
Ushbu maqolada turli kadrlar uzunligida muhim va nomuhim ma'lumotlarni uzatishda
aloqa kanallarining bog’lanish kanallar va хisoblash tarmoqlarida asosiy sifat
ko'rsatgichlarini aniqlash masalalari ko'rib chiqilgan. Qo'yilgan masalani echishda
umumiy hizmat qilish nazariyasi uslublari qo'llanilgan. Taklif etilgan tarmoqlarni vaqtehtimolli harakteristikalarini hisoblash usuli kanalni asosiy sifat ko'rsatgichlarini aniqlash va
kanalni stacional rejimda ma'lumotlarni uzatishda hisoblash vositalarini turli tezkor
qiymatlarini kirish oqimida aniqlash imkonini beradi. Ustuvor va ustuvor bo'lmagan kadrlarni
uzatish jarayonini modellashtirish uchun rangli vaqt Petri to'ri taklif etilgan.Littel
formulasiga asoslangan va navbatda turgan kadrlarni sonini aniqlashga imkon beradigan,
kadrning navbatda turadigan o'rtacha vaqtini va ahborotni uzatishdagi asosiy parametrlarni
aniqlaydigan algoritm taklif etilgan bo'lib, u oyna rejimida qo'llanilishi bilan ajralib turadi.
Taklif etilgan usul ustuvor kadrlarni yo'qolishini kamaytiradi va real vaqt masshtabida
uzatishini ta'minlaydi.
The article discusses the issues of finding the main indicators of the quality of the
communication channel in computer networks when transmitting priority and non-priority data
at different frame lengths. To solve this problem, methods of the theory of queuing using Petri
nets are proposed. The proposed method for calculating the temporal and probabilistic
characteristics of computer networks allows determinining the main indicators of the quality of
the channel in a stationary mode when transmitting priority and non-priority data of computing
tools at various values of the input stream intensity. To simulate the transmission of priority and
non-priority frames, a color temporary Petri net is proposed. An algorithm is proposed for
determining the basic parameters of information transfer, based on the use of the Little formula
and allowing one to determine the number of frames in a queue, the average time a frame has
been in a queue, and other distinctive features of the algorithm include the use of the window
mode. The proposed technique allows to reduce the loss of priority frames of trajectory
information and ensuring their transmission in real time.
В статье рассматриваются вопросы нахождения основных показателей качества
канала связи в вычислительных сетях при передачах приоритетных и неприоритетных
данных при различной длине кадра. Для решения поставленной задачи предложено
использование методов теории массового обслуживания с применением сетей Петри.
Предложенный способ расчета временно-вероятностных характеристик
вычислительных сетей позволяет определить основные показатели качества канала в
стационарном режиме работы при передаче приоритетных и неприоритетных данных
вычислительных средств при различных значениях интенсивности входного потока. Для
Aerospace engineering
22
моделирования процесса передачи приоритетных и неприоритетных кадров предложен
цветной временной показатель сети Петри. Предложен алгоритм с определением
основных параметров передачи информации, основанный на использовании формулы
Литтла и позволяющий определить числа кадров в очереди, среднее времени пребывания
кадров в очереди и др. Отличительная особенность алгоритма заключается в
применении оконно
го режима. Предложенная методика позволяет уменьшить потери приоритетных
кадров траекторной информации и обеспечение их передачи в реальном масштабе
времени.
| № | Author name | position | Name of organisation |
|---|---|---|---|
| 1 | Karimov S.S. | doktorant | ТДТУ |
| № | Name of reference |
|---|---|
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