ALMTF: um mecanismo TCP-friendly para controle de congestionamento em transmissões multimídia

Valter RoeslerJoão Marcelo CeronJosé Valdeni de Lima

The main objective of this paper is to present thoroughly ALMTF (Adaptive Layered Multicast TCP Friendly), which is one of the congestion control algorithms in use by SAM (Multimedia Adaptive System). The algorithm of ALMTF infers the network congestion level, defining the rate (or number of layers) which the receiver can afford, in a way that the amount of received bandwidth is friendly with other TCP flows, as well as fair with other flows of its own algorithm. The benefit obtained with this system is the possibility of transmission of shows and TV channels through Internet, where each receiver adapts automatically to the best possible quality at that moment.

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