Research of Enhanced Paired Transition Algorithm in Software-Defined Networks Based on Fuzzy Logic
Abstract
Computer network technologies are firmly established in many spheres of life. Nowadays it is difficult to imagine a modern production enterprise or educational organization that does not have its own local area network, which is used for information exchange between structural units, security, research and other various tasks. For this purpose, computer networks must have a number of characteristics such as reliability, high speed, efficiency, flexibility in management, etc. Part of these tasks can be successfully solved by using software-defined networks. When designing a network it is necessary to take into account the peculiarities of this or that sphere, for which this network will be intended, because different applications can generate different types of network traffic: text data, voice, video. This paper describes the research process of the enhanced algorithm of paired transitions in software-defined networks based on fuzzy logic, which can be used to perform network routing with quality of service. Experimental research of the influence of communication links parameters on the quality of video traffic streaming via HTTP protocol has been carried out. Based on the results of the research, fuzzy logic inference systems were developed to approximate the service quality function of video streaming transmission. A comparison of the developed fuzzy inference systems having different membership functions of linguistic variables as well as different types of fuzzy inference is given. The developed fuzzy inference systems were applied in the work of the enhanced algorithm of paired transitions based on fuzzy logic in software-defined networks. The work of the developed algorithm has been compared with the work of the classical paired transitions algorithm.
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