Browsing by Author "Lesovoy, Ivan"

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    Application of fuzzy logic for routing in communication networks
    (Видавництво Львівської політехніки, 2012) Vrublevsky, Anton; Lesovoy, Ivan
    To satisfy QoS requirements we should take into consideration routing metrics that affect directly to the QoS. We will consider three parameters: bandwidth, losses and delays. For transmitting multimedia services it is desired to design some controlling mechanisms for solving different problems in a network in case of packet delays, losses etc. Because of complex nature of controlling mechanisms it is desired to design fuzzy logic controller. As input parameters will be three routing metrics mentioned above, whereas as output parameter will be network efficiency. The aim is to obtain better values of network efficiency using different rules from Rule Editor and using appropriate defuzzification method.
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    Compensation modal dispersions optical fiber by rotation ranked glass microstructure
    (Видавництво Львівської політехніки, 2010) Lesovoy, Ivan; Odintsov, Nikolaj; Staschuk, Oleg
    The anisotropic components find in fiber-optic transmission system of the issue wide using. Using characteristic the anisotropic medium for compensation chromatic dispersion of optical fiber (OF) is of considerable interest from theoretical point of view. We want to study this phenomenon in little more detail.