论文标题
路由延迟耐受卫星网络中的异质流量
Routing heterogeneous traffic in delay tolerant satellite networks
论文作者
论文摘要
已提出延迟耐受网络（DTN）作为新体系结构，以提供有效的商店携带和前向数据传输。由于这些网络在计划的联系计划上继电器，因此可以使用联系图路由（CGR）算法来优化路由和数据传递性能。但是，尽管对CGR进行了各种改进，但尚无重要的建议，即优先考虑具有不同服务要求的流量。在这项工作中，我们建议对CGR进行适应，以在发送不同延迟约束的流量时进行性能改进，并开发一个线性编程优化模型，该模型可作为性能上限。拟议方案的仿真结果具有希望，并在满足异质流量的特定需求的同时，就其他方法提高绩效的方式进行了辩论。
Delay Tolerant Networking (DTN) has been proposed as a new architecture to provide efficient store-carry-and-forward data transport in satellite networks. Since these networks relay on scheduled contact plans, the Contact Graph Routing (CGR) algorithm can be used to optimize routing and data delivery performance. However, in spite of the various improvements that have been made to CGR, there have been no significant proposals to prioritize traffic with different quality of service requirements. In this work we propose adaptations to CGR that allow performance improvements when sending traffic with different latency constraints, and develop a linear programming optimization model that works as a performance upper bound. The simulation results of the proposed schemes are promising and open the debate on other ways to improve performance while meeting the particular needs of heterogeneous traffic.
