Research on multicast routing for deep space networks based on DTN

Based on PROPHET routing protocol, MRPTPAE is proposed according to the transmission probability and energy information in this paper which is a novel multicast routing protocol. The fact produce by node energy is considered. And the optimal next hop is decided by the weighted average of the EP which is composed by node energy and transmission probability. Meanwhile, the threshold of the packet forwarding time is controlled by an adaptive transmission value. Owning to the node´s storage space easily depleted and network congestion is likely to occur, network congestion Strategy is proposed by forwarding the value of the factor by comparing the message to reduce network congestion. Finally, we use NS2 simulation tool to simulate MRPTPAE which shows that MRPTPAE has better performance in node density and node moving fast scene and is suitable for DTN.