Over-the-Air Testing of 5G Millimeter-Wave System with Adaptive Beamforming

Pei, Huiling; Chen, Xiaoming; Zhang, Ming; Zhang, Anxue

doi:10.1109/ieee-iws.2019.8803918

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…Due to this limitation of the 3GPP CDL models, the ray-tracing channel model [21] has been applied to the virtual drive testing in MPAC [22], even though the geometry based stochastic channel model (GSCM) is more preferable for MPAC-based OTA testing. Due to this reason, a GSCM channel model with better time evolution performance was used in [23] for testing the adaptive beamforming capability of the DUT. In that model, the UE trajectory is divided into segments.…”

Section: Simulation and Discussionmentioning

confidence: 99%

Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multiprobe Anechoic Chamber Setups

Miao

Fan

Takada

et al. 2019

IEEE Trans. Antennas Propagat.

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The sectored multi-probe anechoic chamber (MPAC) is regarded as a promising millimeter-wave (mmWave) over-the-air (OTA) testing solution. However, there are still debates in the literature about which channel emulation method, i.e., pre-faded synthesis (PFS) or plane wave synthesis (PWS), should be used for the sectored MPAC testing system. In this paper, a thorough comparison between the two channel emulation methods is conducted. It is found that for sectored MPAC (where the active probes are unlikely to be uniformly distributed over the probe panel) the PWS is more accurate than the PFS in line-of-sight (LOS) scenarios and less accurate than the PFS in non-LOS (NLOS) scenarios. Explanations are given.Index Terms-millimeter-wave (mmWave), multi-probe anechoic chamber (MPAC), over-the-air (OTA), plane wave synthesis (PWS), pre-faded synthesis (PFS)

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Section: Simulation and Discussionmentioning

confidence: 99%

Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multiprobe Anechoic Chamber Setups

Miao

Fan

Takada

et al. 2019

IEEE Trans. Antennas Propagat.

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“…The emulation accuracy in the testing area depends on the number of probes and their positions. For sparse mmWave channels, a cost-effective sectored MPAC was proposed in [184], [185], which uses mmWave switching circuits to select the probes with the strongest effect and map them to the mmWave channel emulators [see Fig. 20] [186].…”

Section: System Performance Testingmentioning

confidence: 99%

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

et al. 2021

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“…Further investigation of real-time prediction with realistic time-frame structures in time division duplex (TDD) systems was suggested. Pei et al [33] emulated the line-of-sight channel accurately via pre-faded synthesis and analysed over-the-air 5G cellular communication with adaptive beamforming using a sectored multi-probe anechoic chamber. A recent study by [34] tackled the interference issue by using the adaptive beamforming algorithm to mitigate interference.…”

Section: B Massive Mimomentioning

confidence: 99%

5G Technology: Towards Dynamic Spectrum Sharing Using Cognitive Radio Networks

et al. 2020

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The explosive popularity of small-cell and Internet of Everything devices has tremendously increased traffic loads. This increase has revolutionised the current network into 5G technology, which demands increased capacity, high data rate and ultra-low latency. Two of the research focus areas for meeting these demands are exploring the spectrum resource and maximising the utilisation of its bands. However, the scarcity of the spectrum resource creates a serious challenge in achieving an efficient management scheme. This work aims to conduct an in-depth survey on recent spectrum sharing (SS) technologies towards 5G development and recent 5G-enabling technologies. SS techniques are classified, and SS surveys and related studies on SS techniques relevant to 5G networks are reviewed. The surveys and studies are categorised into one of the main SS techniques on the basis of network architecture, spectrum allocation behaviour and spectrum access method. Moreover, a detailed survey on cognitive radio (CR) technology in SS related to 5G implementation is performed. For a complete survey, discussions are conducted on the issues and challenges in the current implementation of SS and CR, and the means to support efficient 5G advancement are provided.

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Over-the-Air Testing of 5G Millimeter-Wave System with Adaptive Beamforming

Cited by 7 publications

References 12 publications

Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multiprobe Anechoic Chamber Setups

Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multiprobe Anechoic Chamber Setups

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

5G Technology: Towards Dynamic Spectrum Sharing Using Cognitive Radio Networks

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