THEORETICAL STUDY OF OPTICAL LINK PERFORMANCE AS A H2/M/1 MASS SERVICE SYSTEM
2022
Kesya M. S. (Volga Region State University of Telecommunications and Informatics) | Malakhov S. V. (Volga Region State University of Telecommunications and Informatics) | Kritskova Y. S. (Volga Region State University of Telecommunications and Informatics) | Orekhva A. (Volga Region State University of Telecommunications and Informatics)
Russian. In this article, the performance of an optical channel using H2/M/1 MSS (Mass Service System) is studied and compared with M/M/1 MSS. The H2/M/1 MMS is chosen to simulate the optical communication channel. The MMS with hyperexponential input distributions, in contrast to systems with more complex distributions, allows to obtain the solution of the problem in analytical form. Such distributions occur in practice. The task is to calculate such parameters as: network delay, moments of time interval distributions between traffic packets, channel load and intensity of incoming stream. In Riverbed Modeler the following statistics are plotted for the optical link: Ethernet delay, bandwidth and bandwidth utilization. Then the intensity of input flow, channel service and delay according to H2/M/1 mass service system are found. The obtained results are compared with the results of the Riverbed Modeler simulation. Taking into account the fact that the academic version of the Riverbed Modeler simulation system can only generate Poisson's input traffic, which leads to the delay as in the M/M/1 system. From this, it can be concluded that the classical M/M/1 system gives too optimistic estimations of delay. This study has practical applications in the optimization and modernization of the optical link, in order to reduce the waiting time in the queue.
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