Multipoint-to-multipoint routing for multimedia communication service

In the near future, it will be essential for multimedia networks to satisfy multiple quality of service (QoS) requirements, such as bandwidth, transmission reliability, end-to-end delay etc. On the other hand, multicast technology is being increasingly used in various continuous media applications that involve video and audio. In particular, multipoint-to-multipoint communication services, including multimedia collaborations such as video conferencing and shared workspaces, will be widespread. However, when a conventional multicast routing algorithm is applied to such services it may result in traffic concentration on some links. Therefore, we propose a new multipoint-to-multipoint routing method based on the Fallback+ algorithm, which can satisfy multiple QoS requirements and avoid traffic concentrations. Finally, simulation experiments show that this method results in improved traffic load balance and efficient use of network resources.