Network performance of packet video on a local area network

Abstract

Simulation was used to determine feasible operating regions for sending packet video over a carrier sense multiple access with collision detection (CSMA/CD) LAN. Simulation studies were used to compute the percentage of lost video frames and project the number of video sessions that can be carried by an Ethernet. The analysis was used to validate the simulation and applied in a limited way to video teleconferencing scenarios. There are three major conclusions. First, a number of video sessions of this type can be successfully supported on a moderately loaded Ethernet. Second, short data packets appear to suffer longer delays than video packets at higher channel utilizations. Third, reliable video sessions appear possible below a maximum channel utilization that was found to hold across a number of mixes of data and video teleconferencing packets on the channel.<>