Abstract: In order to overcome the shortcomings of end-to-end transport protocols in satellite networks, a novel splliting-connection-based satellite reliable multicast (SCSRM) scheme was proposed in this paper, and the transport protocol operating in space segment, Sat MTCP was designed in detail from the aspects of error control, congestion control and feedback suppression, respectively. Simulation results show that this scheme achieves satisfying Goodput performance even if the channel condition gets worse; owing to the efficient feedback suppression policy and error recovery policy, the Uoodput performance maintains smooth as the receivers increase; and fairness can be achieved by suitable bandwidth allocation.

Key words: Satellite communications, Reliable multicast, Splitting connection