Enforcing application-level QoS by frame-induced packet discarding in video communications
Computer Communications
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It is shown that multimedia, multipoint conferencing systems create important requirements for the networks they use to transmit information among conference participants. These requirements, which stem from the need for conferencing systems to emulate the richness of control present in face-to-face conversations, may extend from the user interface to the control and coordination of communication networks. The user interface of a conferencing system should present users with the means to control the conduct of meetings, as well as the exchange and presentation of multimedia information. The virtual meeting room metaphor of Rapport, which provides the foundation for this system's user interface, is described. The creation and communication of multimedia information, conferencing over multiple and integrated networks, and requirements for multiport communications are discussed