PGM-based reliable multicast data dissemination in satellite IP networks

A reliable distribution of information to receivers located in different regions of world (e.g. simultaneous uploading Web servers) can be effectively carried out using multicast technology. From the other side, the usage of satellite IP network (from IP angle of view: a single-hop broadcast link) allows easy disseminates information to a large group of users that may span large geographical area. In the paper, possibilities of usage of pragmatic general multicast (PGM) transport protocol for wide-area distribution using satellite links are discussed. Simulation results show, that PGM is able to assure reliable data transmission and good scalability in heterogeneous terrestrial-satellite environment