Analysis of MPEG-1 Video Transmission over a Shared Ethernet Lan
The transmission of real-time full-motion digital MPEG video at 30 frames per second over local area networks will be an important service for educational networks, business networks, and possibly in the home on residential LANs. Many LANs have been designed with shared Ethernet technology which provides robust low-cost data communications networking supporting 10 Mbps of shared bandwidth between interconnected computer users and data servers. Digital video standards such as MPEG-1 and MPEG-2 have been developed to provide full-motion video compression for transmission at approximately 1.5 Mbps and 3 to 6 Mbps respectively. The study described in this paper details an analysis of MPEG-1 video and audio transmission over a shared Ethernet network. The network performance is characterized for various MPEG-1 streams with light bursty background traffic loads. The paper presents results for up to 6 MPEG-1 video streams in the presence of background traffic where cumulative data rate, packet lengths, packet size distribution, packet inter-arrival time and packet jitter are described for MPEG-1 video clips. In addition, the network traffic measurements are compared to network simulations. Hence it is shown that a shared Ethernet network environment may be suitable for limited MPEG-1 video transmission.
KeywordsPacket Size Interarrival Time Video Server Packet Length Session Time
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