Round trip time estimation scheme in active reliable multicast transport
Zeng Liu · Jounal of Xidian University · 2002
This paper proposes a Round Trip Time(RTT) estimation scheme of reliable multicast transport based on Active Networks. Compared with traditional RTT estimation schemes, this scheme can precisely estimate the round trip time between the sender and receivers of multicast group, rapidly react to the dynamic topology change and does not require clock synchronization among group members. With this scheme, reliable multicast transport protocol could greatly reduce unncessary multicast control messages, precisely decide the packet sending rate of multicast group and consequently increases the average throughput of the multicast group. Computer simulations are given to analyze the performance of this RTT estimation scheme in the Active Reliable Multicast Transport protocol and compare it with traditional NAK based reliable multicast transport protocols, with the result of simulation proving the advantage of this scheme.