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Hybrid Beamforming with Switches and Phase Shifters over Frequency-Selective Channels

Payami, Sohail, Khalily, Mohsen, Loh, Tian Hong and Nikitopoulos, Konstantinos (2020) Hybrid Beamforming with Switches and Phase Shifters over Frequency-Selective Channels IEEE Wireless Communications Letters.

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Abstract

The recent studies on hybrid beamformers with a combination of switches and phase shifters indicate that such methods can reduce the cost and power consumption of massive multiple-input multiple-output (MIMO) systems. However, most of the works have focused on the scenarios with frequency-flat channel models. This letter proposes an effective approach for such systems in frequency-selective channels and presents the closed-form expressions of the beamformer and the corresponding sum-rates. Compared to the traditional subconnected structures, our approach with a significantly smaller number of phase shifters results in a promising performance.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Payami, Sohailsohail.payami@surrey.ac.uk
Khalily, Mohsenm.khalily@surrey.ac.uk
Loh, Tian Hongt.loh@surrey.ac.uk
Nikitopoulos, Konstantinosk.nikitopoulos@surrey.ac.uk
Date : 21 April 2020
DOI : 10.1109/LWC.2020.2989224
Copyright Disclaimer : © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Clive Harris
Date Deposited : 22 May 2020 14:14
Last Modified : 22 May 2020 14:14
URI: http://epubs.surrey.ac.uk/id/eprint/856974

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