Rate-adaptive real-time multicast TV conference system with locally adaptive packet flow control

As TCP/IP networks develop, various type of applications or services are ap pearing. Especially, many people want to use real time multicast applicatio ns over TCP/IP networks like a TV conference system. Most of the current TC P/IP networks, however, still do not support QoS guarantees using RSVP, so that they provide only a best-effort service. Therefore, such real time app lications must control data transmitting rate by the network or receiver's condition. However, it is difficult to control data rate over a multicast s ession, since every receiver on a multicast network does not necessarily ha ve the same environment. To solve this problem, the authors proposed a loca lly adaptive control intermediate system. This paper describes a rate-adapt ive real-time multicast system with locally adaptive packet flow control.