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arXiv 1902.01682cs.NI
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空-地-空一体化网络中移动性感知的联合业务布局与路由

Mobility-Aware Joint Service Placement and Routing in Space-Air-Ground Integrated Networks

Amir Varasteh, Sandra Hofmann, Nemanja Deric, Mu He, Dominic Schupke, Wolfgang Kellerer, Carmen Mas Machuca

摘要:

人们渴望被连接,无论他们在哪里。最近,为机上乘客提供互联网接入已经受到了工业界和学术界的广泛关注。然而,为了保证低成本的乘客服务的可接受的服务质量(QoS),路由服务的路径以及部署服务的数据中心(DC)应该被仔细地确定。由于不同类型的空对地(A2 G)连接,即,卫星和直接空对地(DA 2G)链路。这些A2 G连接类型在成本、带宽和延迟方面有所不同。此外,由于航班的移动,重要的是要考虑相应地调整服务位置。在这项工作中,我们制定了两个混合线性规划(MILP)的联合服务布局和路由(JSPR)的问题:i)静态(S-JSPR)和ii)移动性感知~(MA-JSPR)在空间-空中-地面综合网络(SAGIN),目标是最小化的总成本。我们比较S-JSPR和MA-JSPR在一个现实的欧洲为基础的SAGIN使用综合评价。结果表明,MA-JSPR模型通过考虑未来航班位置和使用服务迁移控制,显著降低了长期总成本。此外,我们表明S-JSPR的好处,从一个低的时间复杂度,它实现了较低的端到端的延迟相比,MA-JSPR模型。

英文摘要:

People desire to be connected, no matter where they are. Recently, providing Internet access to on-board passengers has received a lot of attention from both industry and academia. However, in order to guarantee an acceptable Quality of Service (QoS) for the passenger services with low incurred cost, the path to route the services, as well as the datacenter (DC) to deploy the services should be carefully determined. This problem is challenging, due to different types of Air-to-Ground (A2G) connections, i.e., satellites and Direct-Air-to-Ground (DA2G) links. These A2G connection types differ in terms of cost, bandwidth, and latency. Furthermore, due to the flights' movements, it is important to consider adapting the service location accordingly. In this work, we formulate two Mixed Integer Linear Programs (MILPs) for the problem of Joint Service Placement and Routing (JSPR): i) Static (S-JSPR), and ii) Mobility-Aware~(MA-JSPR) in Space-Air-Ground Integrated Networks (SAGIN), with the objective of minimizing the total cost. We compare S-JSPR and MA-JSPR using comprehensive evaluations in a realistic European-based SAGIN. The obtained results show that the MA-JSPR model, by considering the future flight positions and using a service migration control, reduces the long-term total cost notably. Also, we show S-JSPR benefits from a low time-complexity and it achieves lower end-to-end delays comparing to MA-JSPR model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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