A Hardware-Efficient Hybrid Beamforming Solution for mmWave MIMO Systems
A Hardware-Efficient Hybrid Beamforming Solution for mmWave MIMO Systems
复制标题
适用于毫米波 MIMO 系统的硬件高效混合波束形成解决方案
DOI:
10.1109/mwc.2018.1700391
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发表时间:
2018-12
影响因子:
12.9
通讯作者:
Zhou Liang
中科院分区:
文献类型:
--
作者:
Li Ming;Wang Zihuang;Li Hongyu;Liu Qian;Zhou Liang
In mmWave communication systems, existing hybrid beamforming solutions generally require a large number of high-resolution phase shifters (PSs) to realize analog beamformers, which still suffer from high hardware complexity and power consumption. Targeting at this problem, this article introduces a novel hardware-efficient hybrid precoding/combining architecture, which only employs a limited number of simple phase over-samplers (POSs) and a switch (SW) network to achieve maximum hardware efficiency while maintaining satisfactory spectral efficiency performance. The POS can be realized by a simple circuit and simultaneously outputs several parallel signals with different phases. With the aid of a simple switch network, the analog precoder/ combiner is implemented by feeding the signals with appropriate phases to antenna arrays or RF chains. We analyze the design challenges of this POS-SW-based hybrid beamforming architecture and present potential solutions to the fundamental issues, especially the precoder/combiner design and the channel estimation strategy. Simulation results demonstrate that this hardware-efficient structure can achieve comparable spectral efficiency but much higher energy efficiency than that of traditional structures.
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影响因子:
20.6
作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
10.1109/icc.2017.7997065
发表时间:
2017-05
期刊:
2017 IEEE International Conference on Communications (ICC)
影响因子:
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DOI:
10.1109/jstsp.2014.2334278
发表时间:
2014-10-01
影响因子:
7.5
作者:
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通讯作者:
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影响因子:
3.9
作者:
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通讯作者:
Heath, Robert W., Jr.