OTA Testing for Massive MIMO Devices Using Cascaded APM Networks and Channel Emulators

Joint Authors

Li, Yong
Sun, Hao
Xin, Lijian
Zhang, Xiang

Source

International Journal of Antennas and Propagation

Issue

Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2019-11-12

Country of Publication

Egypt

No. of Pages

14

Main Subjects

Electronic engineering

Abstract EN

This paper proposes an over-the-air (OTA) testing setup for millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) equipment using cascaded amplitude and phase modulation (APM) network and channel emulator.

Compared with the existing test setup with mechanical switch, the proposed testing setup enables more accurate reconstruction of the radio channel environment under the multiprobe anechoic chamber (MPAC) setup without increasing the number of channel emulators (CEs) to control the system cost.

The constructed MPAC testing setup for mmWave and massive MIMO equipment is composed of an anechoic chamber, a sectored probe wall containing a number of probes, an APM network, a fading channel emulator, and a user emulator (UE).

In this paper, the structural model and the performance advantages of the proposed radiated testing setup are described, and a fully connected APM network for radiated testing is more prominent than the existing switch.

Moreover, the angular spectrum is selected as the performance metric for the reconstructed channel.

The ability of the proposed system to reconstruct the power angular spectrum (PAS) of the target channel is studied under both static and dynamic channel models, which can reflect the performance of beamforming procedures of the massive MIMO antenna arrays, e.g., beam acquisition, tracking, and refinement.

The simulation results for angular spectrum support the superiority of the proposed OTA testing setup.

Furthermore, the simulations for average channel capacity also show that radiated testing setup using cascaded APM network and channel emulator is valid.

American Psychological Association (APA)

Xin, Lijian& Li, Yong& Sun, Hao& Zhang, Xiang. 2019. OTA Testing for Massive MIMO Devices Using Cascaded APM Networks and Channel Emulators. International Journal of Antennas and Propagation،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1157723

Modern Language Association (MLA)

Xin, Lijian…[et al.]. OTA Testing for Massive MIMO Devices Using Cascaded APM Networks and Channel Emulators. International Journal of Antennas and Propagation No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1157723

American Medical Association (AMA)

Xin, Lijian& Li, Yong& Sun, Hao& Zhang, Xiang. OTA Testing for Massive MIMO Devices Using Cascaded APM Networks and Channel Emulators. International Journal of Antennas and Propagation. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1157723

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1157723