Connection optimisation for two types of videoconference

The connection optimisation problem for two types of multipoint videoconferences is formulated. The first type is called a selectable media conference. In this type each conferee can choose to receive a particular video composition. In the second type, called a common media conference, only one composite video is generated for all conferees in this type of conference. Algorithms that use a combination of look-up table and online processing are designed for computation of the optimal paths for connecting the conference sites. The blocking probabilities for these two types of videoconference in fully connected networks are derived and compared. The sensitivity of network throughput to conference-size distribution is also studied