On Indoor Millimeter Wave Massive MIMO Channels: Measurement and Simulation

The millimeter wave (mmWave) communications and massive multiple-input multiple-output (MIMO) are both widely considered to be the candidate technologies for the fifth generation mobile communication system. It is thus a good idea to combine these two technologies to achieve a better performance for...

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Bibliographic Details
Published in:IEEE journal on selected areas in communications 2017-07, Vol.35 (7), p.1678-1690
Main Authors: Ai, Bo, Guan, Ke, He, Ruisi, Li, Jianzhi, Li, Guangkai, He, Danping, Zhong, Zhangdui, Huq, Kazi Mohammed Saidul
Format: Article
Language:English
Subjects:
5G mobile communication
Antenna arrays
Antenna measurements
Antennas
Bandwidth
Bandwidths
Calibration
Channel measurement
Channels
Codes
Communications systems
Delay
Fading
Frequency measurement
indoor
Links
massive MIMO
millimeter wave
MIMO
Mobile communication systems
ray-tracing
Simulation
SISO (control systems)
Wireless communication
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Summary:The millimeter wave (mmWave) communications and massive multiple-input multiple-output (MIMO) are both widely considered to be the candidate technologies for the fifth generation mobile communication system. It is thus a good idea to combine these two technologies to achieve a better performance for large capacity and high data-rate transmission. However, one of the fundamental challenges is the characterization of mmWave massive MIMO channel. Most of the previous investigations in mmWave channel only focus on single-input single-output links or MIMO links, whereas the research of massive MIMO channels mainly focus on a frequency band below 6 GHz. This paper investigates the channel behaviors of massive MIMO at a mmWave frequency band around 26 GHz. An indoor mmWave massive MIMO channel measurement campaign with 64 and 128 array elements is conducted, based on which, path loss, shadow fading, root-mean-square (RMS) delay spread, and coherence bandwidth are extracted. Then, by using our developed ray-tracing simulator calibrated by the measurement data, we make the extensive ray-tracing simulations with 1024 antenna elements in the same indoor scenario, and get insights into the variation tendency of mean delay and the RMS delay with different array elements. It is observed that the measurement and the ray-tracing-based simulation results have reached a good agreement.
ISSN:0733-8716
1558-0008
DOI:10.1109/JSAC.2017.2698780