Due to the dynamic change of the opportunistic network topology and the lack of stable\ninformation transmission paths between nodes, the traditional topology-based routing algorithm\ncannot achieve the desired routing performance. To address of this problem, this paper proposes a\nrouting algorithm based on trajectory prediction (RATP). The routing protocol based on trajectory\nprediction can efficiently and quickly adapt to the network link quality instability and the dynamic\nchanges of network topology. RATP algorithm constructs a node mobility model by analyzing the\nhistorical mobility characteristics of the nodes. According to the node prediction information, the\nmetric value of the candidate node is calculated, and the node with the smaller metric value is\nselected as the data forwarding node, which can effectively reduce the packet loss rate and avoids\nexcessive consumption. Simulation results show that compared with other algorithms, the proposed\nalgorithm has higher data delivery ratio, and end-to-end data delay and routing overhead are\nsignificantly reduced.
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