Fast and Optimal Multicast-Server Selection Based on Receivers' Preference
IDMS '00 Proceedings of the 7th International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services
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In this paper, we propose a receiver-cooperative bandwidth management method for layered multicast streams, considering not only bandwidth requirements but also receivers' preference. In our method, we assume that each receiver has a preference value for each layer of streams. When a receiver requests an additional layer and required bandwidth is not available on links, it can let other receivers release a part of the layers of streams which they receive if, it increases the sum of the satisfied preference values of all receivers as a total. We give an algorithm to calculate an optimal way of releasing layers in a polynomial time under some assumption. We had an experiment to transmit JPEG video over a private IP network and confirmed that our method could control bandwidth among the video streams within a second.