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A 16 × 8 Hybrid Beamforming and Precoding Processor for 2D Planar Antenna Array in mmWave MIMO Systems

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Abstract

In the next generation 5G mobile communication systems, the massive multiple-input multiple-output (MIMO) system uses large antenna arrays to improve transmission throughput and reliability. Millimeter wave (mmWave) is very suitable for massive MIMO systems because its small wavelength allows the tightly package of large antenna array. This paper presents a low-complexity hybrid MIMO beamforming and precoding processor for 16x8 2D planar antenna array in mmWave systems. This study proposes to use the antenna selection technique to reduce the MIMO dimension and presents a sliding-window-based index selection for RF beamforming array vector. These techniques not only reduce the computational complexity but also enable highly paralleled hardware architecture. The proposed algorithm was designed and implemented by using TSMC 90 nm CMOS Technology for the MIMO baseband processing in 16 ×8 2D planar antenna array MIMO systems. The processor achieves 2.9 M, 3.3 M, 4 M, and 4.7 M channel matrices per second for four, three, two, and one stream, respectively.

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Acknowledgements

This work was supported by the Ministry of Science and Technology (MOST), Taiwan under grant number MOST 103-2221-E-007-126-MY2.

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Authors and Affiliations

  1. Institute of Communications Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan

    Kai-Neng Hsu & Yuan-Hao Huang

  2. Department of Electrical Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan

    Ching-Hung Wang, Yun-Yueh Lee & Yuan-Hao Huang

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  1. Kai-Neng Hsu
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  2. Ching-Hung Wang
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  3. Yun-Yueh Lee
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  4. Yuan-Hao Huang
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Correspondence to Yuan-Hao Huang.

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Hsu, KN., Wang, CH., Lee, YY. et al. A 16 × 8 Hybrid Beamforming and Precoding Processor for 2D Planar Antenna Array in mmWave MIMO Systems. J Sign Process Syst 90, 571–583 (2018). https://doi.org/10.1007/s11265-017-1272-4

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  • DOI: https://doi.org/10.1007/s11265-017-1272-4

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