A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives
A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives
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DOI：
10.1109/comst.2018.2843719
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发表时间：
2018-01-01
影响因子：
35.6
通讯作者：
Moerman, Ingrid
中科院分区：
文献类型：
--
作者：
Ahmed, Irfan;Khammari, Hedi;Moerman, Ingrid
不断增长的无线数据业务需求已经推动了探索合适的频谱区域以满足预期需求的需求。有鉴于此，毫米波（mmWave）通信已经受到研究界的相当大的关注。通常，在第五代（5G）无线网络中，毫米波大规模多输入多输出（MIMO）通信通过将高维模拟移相器和功率放大器与低维数字信号处理单元组合的混合收发器来实现。这种混合波束成形设计降低了成本和功耗，符合5G的节能设计愿景。在本文中，我们跟踪大规模MIMO通信的混合波束形成的背景下的混合收发器的结构，数字和模拟波束形成矩阵与可能的天线配置方案和异构无线网络中的混合波束形成的系统模型的进展。我们扩展了讨论的范围，包括混合波束成形中的资源管理问题。我们探讨了混合波束成形方法的适用性，现有的和提出的，直到2017年第一季度，并确定了令人兴奋的未来挑战在这一领域。
The increasing wireless data traffic demands have driven the need to explore suitable spectrum regions for meeting the projected requirements. In the light of this, millimeter wave (mmWave) communication has received considerable attention from the research community. Typically, in fifth generation (5G) wireless networks, mmWave massive multiple-input multiple-output (MIMO) communications is realized by the hybrid transceivers which combine high dimensional analog phase shifters and power amplifiers with lower-dimensional digital signal processing units. This hybrid beamforming design reduces the cost and power consumption which is aligned with an energy-efficient design vision of 5G. In this paper, we track the progress in hybrid beamforming for massive MIMO communications in the context of system models of the hybrid transceivers' structures, the digital and analog beamforming matrices with the possible antenna configuration scenarios and the hybrid beamforming in heterogeneous wireless networks. We extend the scope of the discussion by including resource management issues in hybrid beamforming. We explore the suitability of hybrid beamforming methods, both, existing and proposed till first quarter of 2017, and identify the exciting future challenges in this domain.