Imperfections to be Considered in mmWave Systems for Hybrid Processing / Imperfeições a serem consideradas em sistemas mmWave para processamento híbrido

Luciana Farias de Oliveira Nóbrega, Jackeline Dourado da Silva, Alvaro Javier Ortega

Abstract


This paper describes a methodology to generate mmWave scenarios, where both imperfect channel estimation and noised phase shifters are considered. This methodology is greatly useful to evaluate hybrid precoder performance. Numerical results evidence that the number of antennas required to obtain a workable performance in mmWave systems with no ideal assumptions can be huge, whereas in mmWave systems with perfect conditions only a few dozens are needed. Furthermore, there are mmWave systems on ideal cases with a comparable performance of other systems on no ideal cases.

 

 


Keywords


Hybrid precoding, mmWave systems, channel estimation errors, 5G.

References


M. Rebato, L. Rose, and M. Zorzi, “Performance assessment of MIMO precoding on realistic mmWave channels,” in 2019 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE, 2019, pp. 1–6.

C. Hu, L. Dai, T. Mir, Z. Gao, and J. Fang, “Super-resolution channel estimation for mmwave massive mimo with hybrid precoding,” IEEE Transactions on Vehicular Technology, vol. 67, no. 9, pp. 8954–8958, 2018.

W. Wang, H. Yin, X. Chen, and W. Wang, “Achievable sum rate loss of hybrid beamforming with imperfect phase shifters in multiuser millimeter wave systems,” in 2018 10th International Conference on Wireless Communications and Signal Processing (WCSP). IEEE, 2018, pp. 1–6.

Kratos, “Model 7929 millimeter wave 10 bit digital 360 phase shifter,” Microwave Electronics Products. [Online]. Available: http://www.kratosmed.com/gmcatalog/millimeter-wavecomponents/model-7929-millimeter-wave-10-bit-digital-360-phaseshifter?r=gmc

A. J. Ortega, R. Sampaio-Neto, and R. D. Pereira, “On hybrid precoder/combiner for downlink mmWave massive MU-MIMO systems,” Preprint Researchgate DOI: 10.13140/RG.2.2.36339.58405, 2019.

A. Li and C. Masouros, “Hybrid precoding and combining design for millimeter-wave multi-user MIMO based on SVD,” in Communications (ICC), 2017 IEEE International Conference on. IEEE, 2017, pp. 1–6. [7] D. H. Nguyen, L. B. Le, T. Le-Ngoc, and R. W. Heath, “Hybrid mmse precoding and combining designs for mmwave multiuser systems,” IEEE Access, vol. 5, pp. 19 167–19 181, 2017.

D. H. Nguyen, L. B. Le, T. Le-Ngoc, and R. W. Heath, “Hybrid mmse precoding and combining designs for mmwave multiuser systems,” IEEE Access, vol. 5, pp. 19 167–19 181, 2017.




DOI: https://doi.org/10.34117/bjdv7n6-367

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