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Hybrid beamforming for downlink of massive MIMO systems with mulitantenna user equipment
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Payami, S., Ghoraishi, M. and Dianati, Mehrdad (2018) Hybrid beamforming for downlink of massive MIMO systems with mulitantenna user equipment. In: 2017 IEEE 86th Vehicular Technology Conference, Toronto, Canada, 24-27 Sep 2017. Published in: 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall) ISBN 9781509059362. doi:10.1109/VTCFall.2017.8288022
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Official URL: https://doi.org/10.1109/VTCFall.2017.8288022
Abstract
In this paper, a novel hybrid precoding algorithm is proposed for the downlink of a multiantenna multiuser massive multiple-input multiple-output (MIMO) system. Firstly, a modified block diagonalization precoding technique is presented. Then, it is shown that combining the modified block diagonalization with hybrid beamforming can achieve a similar sum-rate as block diagonalization with digital beamforming can. Moreover, the performance of the presented algorithm is comparable to the achievable rate in the single-user scenario where there is a full collaboration among the receivers. In a sparse scattering channel, the proposed technique has significantly higher sum-rate compared to a zero- forcing based hybrid beamformer. When digital phase shifters with 3-bits of resolution are used at the RF beamformer, the proposed algorithm achieves the performance of a hybrid beamforming algorithm with analog phase shifting.
Item Type: | Conference Item (Paper) | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Journal or Publication Title: | 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall) | ||||||
Publisher: | IEEE | ||||||
ISBN: | 9781509059362 | ||||||
Official Date: | 12 February 2018 | ||||||
Dates: |
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DOI: | 10.1109/VTCFall.2017.8288022 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Conference Paper Type: | Paper | ||||||
Title of Event: | 2017 IEEE 86th Vehicular Technology Conference | ||||||
Type of Event: | Conference | ||||||
Location of Event: | Toronto, Canada | ||||||
Date(s) of Event: | 24-27 Sep 2017 | ||||||
Related URLs: |
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