Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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EMULATION OF NETWORK IMPAIRMENTS OF MULTIMEDIA STREAMS IN A WI-FI NETWORK

Zabrovskiy A.L. 1 Arikainen A.I. 1 Petrov E.A. 1
1 Petrozavodsk State University
Today multimedia streams are actively transmitted in both wired and Wi-Fi networks. The quality of transmitting multimedia streams depends directly on network impairments, such as a packet loss, network delay and jitter, which affect the sent streams. In turn, the transmission of multimedia traffic over Wi-Fi networks is more susceptible to the influence of a variety of network characteristics. This article describes the created software and hardware system that simulates network impairments of a Wi-Fi network, and also investigates their impact on multimedia streams transmitted in real time mode. Dependences of the quality of a stream on network impairments for a wireless Wi-Fi network have been obtained. It has been shown that the criterion for assessing the quality of multimedia streams created for wired networks can be also used in wireless networks.