What Will 5G Be?
What Will 5G Be?
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DOI：
10.1109/jsac.2014.2328098
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发表时间：
2014-06-01
影响因子：
16.4
通讯作者：
Zhang, Jianzhong Charlie
中科院分区：
文献类型：
--
作者：
Andrews, Jeffrey G.;Buzzi, Stefano;Zhang, Jianzhong Charlie
5G会是什么?但它不会是4G的渐进式进步。前四代蜂窝技术每一代都是打破向后兼容性的重大范式转变。事实上，5G需要进行范式转变，包括极高的载波频率、巨大的带宽、极端的基站和设备密度，以及前所未有的天线数量。然而，与前四代不同的是，它还将高度集成：将任何新的5G空中接口和频谱与LTE和WiFi结合起来，提供普遍的高速率覆盖和无缝的用户体验。为了支持这一点，核心网络还必须达到前所未有的灵活性和智能水平，频谱监管需要重新考虑和改进，能源和成本效率将成为更加关键的考虑因素。本文讨论了所有这些主题，确定了未来研究和初步5G标准化活动的关键挑战，同时对当前文献，特别是本期特刊中出现的论文进行了全面概述。
What will 5G be? What it will not be is an incremental advance on 4G. The previous four generations of cellular technology have each been a major paradigm shift that has broken backward compatibility. Indeed, 5G will need to be a paradigm shift that includes very high carrier frequencies with massive bandwidths, extreme base station and device densities, and unprecedented numbers of antennas. However, unlike the previous four generations, it will also be highly integrative: tying any new 5G air interface and spectrum together with LTE and WiFi to provide universal high-rate coverage and a seamless user experience. To support this, the core network will also have to reach unprecedented levels of flexibility and intelligence, spectrum regulation will need to be rethought and improved, and energy and cost efficiencies will become even more critical considerations. This paper discusses all of these topics, identifying key challenges for future research and preliminary 5G standardization activities, while providing a comprehensive overview of the current literature, and in particular of the papers appearing in this special issue.