Dynamic mmWave Channel Emulation in a Cost-Effective MPAC with Dominant-Cluster Concept
Cai, Xuesong LU ; Miao, Yang ; Li, Jinxing ; Tufvesson, Fredrik LU
; Pedersen, Gert Frølund
and Fan, Wei
(2021)
In IEEE Transactions on Antennas and Propagation
- Abstract
- Millimeter-Wave (mmWave) massive multiple-input multiple-output (MIMO) has been considered as a key enabler for the fifth-generation (5G) communications. It is essential to design and test mmWave 5G devices under various realistic
scenarios since the radio propagation channels pose intrinsic limitations on the performance. This requires emulating realistic dynamic mmWave channels in a reproducible manner in laboratories, which is the goal of this paper. In this contribution, we first illustrate the dominant-cluster(s) concept, where the
non-dominant clusters in the mmWave channels are pruned, for mmWave 5G devices applying massive MIMO beamforming. This demonstrates the importance and necessity to accurately emulate the mmWave... (More) - Millimeter-Wave (mmWave) massive multiple-input multiple-output (MIMO) has been considered as a key enabler for the fifth-generation (5G) communications. It is essential to design and test mmWave 5G devices under various realistic
scenarios since the radio propagation channels pose intrinsic limitations on the performance. This requires emulating realistic dynamic mmWave channels in a reproducible manner in laboratories, which is the goal of this paper. In this contribution, we first illustrate the dominant-cluster(s) concept, where the
non-dominant clusters in the mmWave channels are pruned, for mmWave 5G devices applying massive MIMO beamforming. This demonstrates the importance and necessity to accurately emulate the mmWave channels at a cluster level rather than the composite-channel level. Thus, an over-the-air (OTA) emulation
strategy for dynamic mmWave channels is proposed based on the concept of dominant-cluster(s) in a sectored multiprobe anechoic chamber (SMPAC). The key design parameters including the probe number and the angular spacing of probes are investigated through comprehensive simulations. A cost-effective switch circuit is also designed for this purpose and validated in the simulation. Furthermore, a dynamic mmWave channel measured in an indoor scenario at 28-30 GHz is presented, where the proposed emulation strategy is also validated by reproducing the measured reality. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/07446701-d75f-48e4-86cb-7a2097b249e3
- author
- Cai, Xuesong
LU
; Miao, Yang
; Li, Jinxing
; Tufvesson, Fredrik
LU
; Pedersen, Gert Frølund
and Fan, Wei
- organization
- publishing date
- 2021-12-03
- type
- Contribution to journal
- publication status
- in press
- subject
- in
- IEEE Transactions on Antennas and Propagation
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85122321020
- ISSN
- 0018-926X
- language
- English
- LU publication?
- yes
- id
- 07446701-d75f-48e4-86cb-7a2097b249e3
- alternative location
- https://arxiv.org/abs/2008.09487
- date added to LUP
- 2021-11-22 23:42:07
- date last changed
- 2022-05-17 03:44:23
@article{07446701-d75f-48e4-86cb-7a2097b249e3,
abstract = {{Millimeter-Wave (mmWave) massive multiple-input multiple-output (MIMO) has been considered as a key enabler for the fifth-generation (5G) communications. It is essential to design and test mmWave 5G devices under various realistic<br/>scenarios since the radio propagation channels pose intrinsic limitations on the performance. This requires emulating realistic dynamic mmWave channels in a reproducible manner in laboratories, which is the goal of this paper. In this contribution, we first illustrate the dominant-cluster(s) concept, where the<br/>non-dominant clusters in the mmWave channels are pruned, for mmWave 5G devices applying massive MIMO beamforming. This demonstrates the importance and necessity to accurately emulate the mmWave channels at a cluster level rather than the composite-channel level. Thus, an over-the-air (OTA) emulation<br/>strategy for dynamic mmWave channels is proposed based on the concept of dominant-cluster(s) in a sectored multiprobe anechoic chamber (SMPAC). The key design parameters including the probe number and the angular spacing of probes are investigated through comprehensive simulations. A cost-effective switch circuit is also designed for this purpose and validated in the simulation. Furthermore, a dynamic mmWave channel measured in an indoor scenario at 28-30 GHz is presented, where the proposed emulation strategy is also validated by reproducing the measured reality.}},
author = {{Cai, Xuesong and Miao, Yang and Li, Jinxing and Tufvesson, Fredrik and Pedersen, Gert Frølund and Fan, Wei}},
issn = {{0018-926X}},
language = {{eng}},
month = {{12}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Antennas and Propagation}},
title = {{Dynamic mmWave Channel Emulation in a Cost-Effective MPAC with Dominant-Cluster Concept}},
url = {{https://lup.lub.lu.se/search/files/110591273/ota_tesing_in_beamforming_devices.pdf}},
year = {{2021}},
}