Cross-Layer Data Delivery in Satellite-Aerial-Terrestrial Communication

Cross-Layer Data Delivery in Satellite-Aerial-Terrestrial Communication
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星地天地通信中的跨层数据传输

DOI:
10.1109/mwc.2018.1700354
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发表时间:
2018-06
影响因子:
12.9
通讯作者:
Kato Nei
Kato Nei
中科院分区:
计算机科学1区
文献类型:
--
作者:
Shi Yongpeng;Liu Jiajia;Fadlullah Zubair Md.;Kato Nei

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新兴的SAT通信网络在各种无线接入应用和服务中具有很大的前景。然而,在层间链路容量有限的情况下,如何在这样的集成网络中实现跨多层的最佳数据传输性能仍然是一个具有挑战性的问题。据我们所知,流量传输的跨层网关选择问题几乎没有被触及,因为这方面的先前工作主要集中在某一层,而忽略了其他层。为此,我们在本文中首先将跨层网关选择定义为SAT网络中的约束优化问题,然后提出一个贪婪解决方案,以有效地从空中网络中识别一组最优网关,该网络作为地面层和卫星层之间数据传输的中继层。在提供了大量的数值结果来验证我们的解决方案的有效性之后,我们也指出了挑战和未来的方向。
The emerging SAT communication network holds great promise in various wireless access applications and services. How to achieve in such integrated network the best data delivery performance across multiple layers, given the limited inter-layer link capacity, however, is still a challenging issue. To the best of our knowledge, the cross-layer gateway selection problem for traffic transmission remains almost untouched, since previous works in this line mainly focused on one single layer and neglected the other layers. Toward this end, we first define in this article the cross-layer gateway selection as a constrained optimization problem in a SAT network, and then propose a greedy solution to efficiently identify an optimal set of gateways from an aerial network that serves as a relay layer for the data delivery between the terrestrial layer and the satellite layer. After providing extensive numerical results to validate the efficacy of our solution, we also point out challenges and future directions.
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