Design of a Scalable Reliable Multicast Transport Protocol on the Design of a New Scalable Reliable Multicast Transport Protocol
چکیده
This document presents the design and performance evaluation of a scalable, reliable, oneto-many multicast transport protocol. We show through simulation that it scales extremely well to a very big number of receivers. The server load (in terms of CPU and memory) is nearly independent of the number of receivers. Reliability is achieved using forward error correction (FEC) in combination with selective repeat NAK-based ARQ. Using FEC can significantly reduce the necessity for retransmission requests or make them totally unnecessary, which is important in wireless and satellite communicaton environments. The protocol uses one multicast group address for the original transmission and a second group address for the handling of retransmissions, which reduces significantly the network load on branches with low loss and makes the protocol suitable for use in the context of satellite communications. The protocol can be used for the distribution of audio/video data, software, electronic newspapers, Web pages, etc.