Inflight Broadband Connectivity Using Cellular Networks
Inflight Broadband Connectivity Using Cellular Networks
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DOI：
10.1109/access.2016.2537648
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发表时间：
2016-01-01
期刊：
影响因子：
3.9
通讯作者：
Noumeir, Rita
中科院分区：
文献类型：
--
作者：
Tadayon, Navid;Kaddoum, Georges;Noumeir, Rita
在蜂窝网络公开亮相30年后，几乎没有人口稠密的地区没有蜂窝网络覆盖。日复一日，移动的用户以更高的速度获得更广泛的服务。如今，长终端演进（LTE）网络支持移动速度高达350 km/h的用户的宽带连接，并且正在考虑支持高达500 km/h的速度。不幸的是，由于缺乏空中覆盖，这些努力都没有针对空中旅行者。如果5G网络旨在为任何人提供随时随地的连接，许多运营商正在通过专有的地面网络或卫星链路提供免费的车载Wi-Fi。不幸的是，这两种解决方案都有严重的缺点，其中后者提供非常有限的速度，而前者昂贵且不可扩展。在本文中，我们讨论了技术的可能性，提高现有的LIE基础设施的空到地通信。我们确定了这条道路上的主要挑战和障碍，如上行链路/下行链路干扰，频繁的漫游，大多普勒效应，和信道退化。我们还讨论了适当的解决方案，以抵消他们使用一些新兴的天线，信号处理，波束成形，和多波束的想法。
After three decades from the public debut of cellular networks, there are hardly parts of populated lands where cellular coverage is absent. Day after day, mobile users have been provided with wider range of services at higher speed. Today, long terminal evolution (LTE) networks support broadband connectivity for users moving as fast as 350 km/h, and the support for speeds up to 500 km/h is under consideration. Unfortunately, none of these efforts were aimed at airborne travelers due to the lack of aerial coverage. Provided that 5G networks are meant to provide anywhere and anytime connectivity for anyone, many operators are providing the free onboard Wi-Fi through proprietary terrestrial networks or satellite links. Unfortunately, both of these solutions have serious drawbacks, where the latter provides very limited speed, and the former is expensive and unscalable. In this paper, we discuss the technical possibilities of enhancing the existing LIE infrastructure for air to ground communications. We identify the major challenges and obstacles in this path, such as uplink/downlink interferences, frequent roaming, large Doppler effect, and channel degradation. We also discuss appropriate solutions to counteract them using some of the emerging antenna, signal processing, beamforming, and multi-beaming ideas.