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arXiv 1706.06013cs.NI
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通过LEO星座将Satellite集成到5G中

Integration of Satellites in 5G through LEO Constellations

Oltjon Kodheli, Alessandro Guidotti, Alessandro Vanelli-Coralli

摘要:

5G系统的标准化正进入关键阶段,3GPP将于2017年6月发布PHY标准。为了满足5G在大吞吐量和全球连接方面的苛刻要求,卫星通信为扩展和补充地面网络提供了宝贵的资源。在这种情况下,我们考虑一种异构架构,其中LEO巨型星座卫星系统为地面5G中继节点提供回程连接,从而创建地面5G网络。由于与卫星信道相关的大延迟和多普勒频移对地面系统构成了严峻的挑战,因此在本文中,我们评估了它们对未来5G PHY和MAC层程序的影响。此外,还针对随机接入、波形参数集和HARQ过程提出了解决方案。

英文摘要:

The standardization of 5G systems is entering in its critical phase, with 3GPP that will publish the PHY standard by June 2017. In order to meet the demanding 5G requirements both in terms of large throughput and global connectivity, Satellite Communications provide a valuable resource to extend and complement terrestrial networks. In this context, we consider a heterogeneous architecture in which a LEO mega-constellation satellite system provides backhaul connectivity to terrestrial 5G Relay Nodes, which create an on-ground 5G network. Since large delays and Doppler shifts related to satellite channels pose severe challenges to terrestrial-based systems, in this paper we assess their impact on the future 5G PHY and MAC layer procedures. In addition, solutions are proposed for Random Access, waveform numerology, and HARQ procedures.

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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