A comparison of sender-initiated and receiver-initiated reliable multicast protocols
SIGMETRICS '94 Proceedings of the 1994 ACM SIGMETRICS conference on Measurement and modeling of computer systems
A reliable dissemination protocol for interactive collaborative applications
Proceedings of the third ACM international conference on Multimedia
A comparison of reliable multicast protocols
Multimedia Systems
A bandwidth analysis of reliable multicast transport protocols
COMM '00 Proceedings of NGC 2000 on Networked group communication
Performance comparison of sender-based and receiver-based reliable multicast protocols
Computer Communications
Reliable multicast transport protocol (RMTP)
IEEE Journal on Selected Areas in Communications
Cost analysis and optimization for IP multicast group management
Computer Communications
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In recent years, many reliable multicast protocols on transport layer have been proposed. Previous analysis and simulation studies gave evidence for the superiority of tree-based approaches in terms of throughput and bandwidth requirements. In many tree-based protocols, the nodes of the tree are formed of multicast group members. In this case, the branching factor, i.e. the maximum number of child nodes is adjustable. In this paper, we analyze the influence of the branching factor on a protocol's throughput and bandwidth consumption. This knowledge is important to configure protocols for best performance and to optimize the tree creation process. Our results show that the optimal branching factor depends mainly on the probability for receiving messages from other local groups. If local groups are assigned to a separate multicast address, the optimal branching factor is small. On the other hand, if TTL scoping is used and therefore the probability for receiving messages from other local groups is greater than zero, larger local groups provide better performance.