Reconfigurable Power Divider enabled Dynamic Hybrid m-MIMO Transmitter

Kai Xu; Jaiyu Hou; Li Wang; Simona Sibio; John Thompson; Steve McLaughlin; Yuan Ding; Gunnar Peters

doi:10.1109/OJCOMS.2022.3226262

Reconfigurable Power Divider enabled Dynamic Hybrid m-MIMO Transmitter

Kai Xu
, Jaiyu Hou
, Li Wang
, Simona Sibio
, John Thompson
, Steve McLaughlin
, Yuan Ding
, Gunnar Peters

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A promising solution for massive Multiple-Input Multiple-Output (m-MIMO) systems is Hybrid digital-analogue (HDA) beamforming as it offers a balanced trade-off between energy efficiency (EE) and spectral efficiency (SE). The lack of practical demonstrations in the open literature is primarily because those most existing works require a large number of phase shifters (PSs), radio frequency (RF) switches, power dividers (PDs), and power combiners which contribute to high hardware complexity and energy consumption (due to insertion loss). In this paper, we introduce a practical dynamic subarray m-MIMO structure that is based on reconfigurable power dividers (RPDs). The extensive system simulation results, considering hardware imperfection extracted from a practical RPD implementation, indicate that the proposed RPD-based dynamic HDA m-MIMO outperforms the fixed subarray counterpart.

Original language	English
Pages (from-to)	1-11
Journal	IEEE Open Journal of the Communications Society
Early online date	6 Dec 2022
DOIs	https://doi.org/10.1109/OJCOMS.2022.3226262
Publication status	E-pub ahead of print - 6 Dec 2022

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title = "Reconfigurable Power Divider enabled Dynamic Hybrid m-MIMO Transmitter",

abstract = "A promising solution for massive Multiple-Input Multiple-Output (m-MIMO) systems is Hybrid digital-analogue (HDA) beamforming as it offers a balanced trade-off between energy efficiency (EE) and spectral efficiency (SE). The lack of practical demonstrations in the open literature is primarily because those most existing works require a large number of phase shifters (PSs), radio frequency (RF) switches, power dividers (PDs), and power combiners which contribute to high hardware complexity and energy consumption (due to insertion loss). In this paper, we introduce a practical dynamic subarray m-MIMO structure that is based on reconfigurable power dividers (RPDs). The extensive system simulation results, considering hardware imperfection extracted from a practical RPD implementation, indicate that the proposed RPD-based dynamic HDA m-MIMO outperforms the fixed subarray counterpart.",

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T1 - Reconfigurable Power Divider enabled Dynamic Hybrid m-MIMO Transmitter

AU - Xu, Kai

AU - Hou, Jaiyu

AU - Wang, Li

AU - Sibio, Simona

AU - Thompson, John

AU - McLaughlin, Steve

AU - Ding, Yuan

AU - Peters, Gunnar

PY - 2022/12/6

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N2 - A promising solution for massive Multiple-Input Multiple-Output (m-MIMO) systems is Hybrid digital-analogue (HDA) beamforming as it offers a balanced trade-off between energy efficiency (EE) and spectral efficiency (SE). The lack of practical demonstrations in the open literature is primarily because those most existing works require a large number of phase shifters (PSs), radio frequency (RF) switches, power dividers (PDs), and power combiners which contribute to high hardware complexity and energy consumption (due to insertion loss). In this paper, we introduce a practical dynamic subarray m-MIMO structure that is based on reconfigurable power dividers (RPDs). The extensive system simulation results, considering hardware imperfection extracted from a practical RPD implementation, indicate that the proposed RPD-based dynamic HDA m-MIMO outperforms the fixed subarray counterpart.

AB - A promising solution for massive Multiple-Input Multiple-Output (m-MIMO) systems is Hybrid digital-analogue (HDA) beamforming as it offers a balanced trade-off between energy efficiency (EE) and spectral efficiency (SE). The lack of practical demonstrations in the open literature is primarily because those most existing works require a large number of phase shifters (PSs), radio frequency (RF) switches, power dividers (PDs), and power combiners which contribute to high hardware complexity and energy consumption (due to insertion loss). In this paper, we introduce a practical dynamic subarray m-MIMO structure that is based on reconfigurable power dividers (RPDs). The extensive system simulation results, considering hardware imperfection extracted from a practical RPD implementation, indicate that the proposed RPD-based dynamic HDA m-MIMO outperforms the fixed subarray counterpart.

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JO - IEEE Open Journal of the Communications Society

JF - IEEE Open Journal of the Communications Society

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Reconfigurable Power Divider enabled Dynamic Hybrid m-MIMO Transmitter

Abstract

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