Department of Information Security, Moscow Technical University of Communication and Informatics, Moscow, Russian Federation; Department of Electrical and Information Engineering, Covenant University, Pmb1023 Ota, Nigeria
Sheluhin, O.I., Department of Information Security, Moscow Technical University of Communication and Informatics, Moscow, Russian Federation; Atayero, A.A., Department of Electrical and Information Engineering, Covenant University, Pmb1023 Ota, Nigeria; Ivanov, Y.A., Department of Information Security, Moscow Technical University of Communication and Informatics, Moscow, Russian Federation
Applications are constantly being developed with a view to maximizing bandwidth usage. This is necessitated by the overwhelming popularity of an ever-increasing wave of bandwidth intensive multimedia services that are constantly deployed to meet end user demands. All contemporary information communication systems and networks are expected to maintain the quality of these applications with different Quality of Service (QoS) levels. QoS requirements are generally dependent on the parameters of network and application layers of the OSI model. At the application layer QoS depends on factors such as resolution, bit rate, frame rate, video type, audio codecs, etc. At the network layer, distortions such as delay, jitter, packet loss, etc. are introduced. This paper presents simulation results of modeling video streaming over wireless communications networks. Simulation showed that different video subject groups affect the perceived quality differently when transmitted over networks. We show conclusively that in a transmission network with a small error probabilities (BER = 10 -6, BER = 10 -5 ), the minimum bit rate (128 kbps) guarantees an acceptable video quality, corresponding to MOS > 3 for all types of frames. It is also shown through analysis that the efficiency of error correction methods is I strongly correlation with the spatial-temporal properties of the analyzed video sequences.