A scheme for improved multicast efficiency in a ring network

The authors deal with the multicasting of a file to a number of stations in a ring network. A protocol is presented which is very effective in reducing the overall transmission time when the links are subject to errors. The scheme relies on giving extra error protection to acknowledgements. Simulations and comparisons are made with two other schemes. These comparisons show the potential of substantial efficiency increases by using the proposed protocol. The benefits stem from a large reduction of unneeded repetitions under error conditions.<
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