Vehicular delay tolerant networks (VDTNs) enable communications in sparse vehicular ad-hoc networks and other challenged environments where traditional networking approaches fail. We propose a VDTN routing scheme that combines the message deliver strategy of PRoPHET protocol, the message copy control strategy of Spray-and-Wait protocol and an enhanced buffer management scheme. In our proposal, the buffer management scheme is designed to improve certain network performance goals, namely, maximizing the average delivery ratio and minimizing the average delivery delay. Furthermore, we use computer simulations to show that the proposed routing scheme achieves better system performance than the existing baseline routing protocols.

中文翻译：

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具有增强的缓冲区管理的VDTN方案

车载时延容忍网络（VDTN）可以在稀疏的车载ad-hoc网络和传统联网方法失败的其他挑战环境中进行通信。我们提出了一种VDTN路由方案，该方案结合了PRoPHET协议的消息传递策略，Spray-and-Wait协议的消息复制控制策略和增强的缓冲区管理方案。在我们的建议中，缓冲区管理方案旨在提高某些网络性能目标，即最大程度地提高平均传输率和最小化平均传输延迟。此外，我们使用计算机仿真来表明，所提出的路由方案比现有的基线路由协议具有更好的系统性能。