Thiago Curvelo dos Anjos,  Lucídio dos Anjos Formiga Cabral,  Guido Lemos de Souza Filho. 

In this work we propose an approach to build and maintain a minimum latency topology, for a multipoint videoconference service overlay network, which uses multipoint control units (MCU's) cascading. However, setting MCU's and clients on the network brings a combinatorial intractable problem. In order to solve it, we developed a heuristic, based on the Simulated Annealing algorithm, which allows implementing a coordinator entity capable of maintain multiples conversation rooms, instanced in minimum latency trees of MCU's and clients. We also show an integer linear programming model for the problem.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbrc/2008/018.pdf

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