Remote time-alignment of interactive services through efficient multicast algorithms

This paper is focused on the problem of QoS multicast routing. First, protocols that have been developed to support real-time multimedia delivery and quality-of-service (QoS) for multicast applications are presented. Then their performance is analyzed and compared by means of simulation. QoS routing is considered with the special goal of providing a time-alignment of multiple users, needed in many interactive multimedia services, taking into account the necessity of supporting them through efficient connections.