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Information 2019, 10(2), 49; https://doi.org/10.3390/info10020049

Routing Algorithm Based on Trajectory Prediction in Opportunistic Networks

School of Software, Railway College, Central South University, Changsha 410075, China
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Received: 17 January 2019 / Revised: 28 January 2019 / Accepted: 29 January 2019 / Published: 4 February 2019
(This article belongs to the Section Information Applications)
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Abstract

Due to the dynamic change of the opportunistic network topology and the lack of stable information transmission paths between nodes, the traditional topology-based routing algorithm cannot achieve the desired routing performance. To address of this problem, this paper proposes a routing algorithm based on trajectory prediction (RATP). The routing protocol based on trajectory prediction can efficiently and quickly adapt to the network link quality instability and the dynamic changes of network topology. RATP algorithm constructs a node mobility model by analyzing the historical mobility characteristics of the nodes. According to the node prediction information, the metric value of the candidate node is calculated, and the node with the smaller metric value is selected as the data forwarding node, which can effectively reduce the packet loss rate and avoids excessive consumption. Simulation results show that compared with other algorithms, the proposed algorithm has higher data delivery ratio, and end-to-end data delay and routing overhead are significantly reduced.
Keywords: opportunistic networks; routing; trajectory prediction; node mobility model opportunistic networks; routing; trajectory prediction; node mobility model
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zou, P.; Zhao, M.; Wu, J.; Wang, L. Routing Algorithm Based on Trajectory Prediction in Opportunistic Networks. Information 2019, 10, 49.

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