Abstract
This paper is concerning of Erlang formulas practical approval and their usage with video flow transfer in IP networks. Erlang formulas were simulated in MATLAB program. Practical verification was realized in defined environment by using of designed video source. The result is comparison of loss calculated by MATLAB and loss of real video data transfer.
Highlights
IP networks were not designed for providing multimedia services at the beginning
This paper is concerning of Erlang formulas practical approval and their usage with video flow transfer in IP networks
For simulation of formula B we used RED mechanism, because packets were dropped after reaching maximum queue length
Summary
IP networks were not designed for providing multimedia services at the beginning. If we want to use IP networks for voice, video and multimedia transmission, we have to define transfer parameters. These parameters are covered under QoS (Quality of Service). For observance of QoS [2,3,4,5] parameters it is necessary to estimate network performance under load and link overflow. This problem is handled by theory of queuing systems. Erlang C formula defines probability of inserting data into waiting queues and so resembles to IP network behavior, where data queuing occurs before sending further
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