Vehicular named data networking (VNDN) has the data-centric and in-network caching advantages that are in line with the requirements of multi-hop content retrieval in vehicular ad hoc networks (VANETs). Some current restrictive forwarding strategies utilize single-path forwarding to mitigate the Interest broadcast storm in VNDN. However, these strategies do not provide any reliable mechanism for Interest and Data forwarding to address the problem of low performance caused by the dynamic and unreliable VANETs communication environment. In this paper, we propose a packet forwarding strategy based on optimal and backup (PFOB) for VNDN. For Interest, PFOB establishes a single-path forwarding with high reliability and reachability by increasing the signal strength and node-degree criterion and retransmission mechanism. For Data, PFOB provides a reliable multi-path backup forwarding mechanism without additional network overhead. Simulation results show that PFOB can effectively improve the Interest satisfaction ratio, reduce the number of application retransmissions, and reduce the Interest satisfaction delay compared to the current strategies.

中文翻译：

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一种可靠高效的车载命名数据网络转发策略

车载命名数据网络（VNDN）具有以数据为中心和网内缓存的优势，符合车载自组织网络（VANET）中多跳内容检索的要求。当前一些限制性转发策略利用单路径转发来缓解 VNDN 中的兴趣广播风暴。然而，这些策略并没有提供任何可靠的兴趣和数据转发机制来解决动态和不可靠的 VANETs 通信环境导致的性能低下的问题。在本文中，我们为 VNDN 提出了一种基于优化和备份（PFOB）的数据包转发策略。对于Interest，PFOB通过增加信号强度和节点度准则和重传机制，建立了具有高可靠性和可达性的单路径转发。对于数据，PFOB 提供可靠的多路径备份转发机制，无需额外的网络开销。仿真结果表明，与现有策略相比，PFOB可以有效提高兴趣满意率，减少应用重传次数，减少兴趣满意延迟。