Next Article in Journal
Analysis of LoRaWAN 1.0 and 1.1 Protocols Security Mechanisms
Previous Article in Journal
A Water Level Measurement Approach Based on YOLOv5s
Previous Article in Special Issue
Performance Limits of Direct Wideband Coherent 3D Localization in Distributed Massive MIMO Systems
 
 
Communication

Massive MIMO Indoor Transmissions at 38 and 65 GHz Applying Novel HBF Techniques for 5G

1
Department of Technical Sciences, Universidad Católica San Antonio of Murcia, 30107 Murcia, Spain
2
Department of Engineering and Applied Techniques, Centro Universitario de la Defensa, San Javier Air Force Base, Ministerio de Defensa-Universidad Politécnica de Cartagena, 30720 Santiago de la Ribera, Spain
3
Information Technologies and Communications Department, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Peter Han Joo Chong
Sensors 2022, 22(10), 3716; https://doi.org/10.3390/s22103716
Received: 16 March 2022 / Revised: 22 April 2022 / Accepted: 11 May 2022 / Published: 13 May 2022
The 5G Infrastructure Public Private Partnership (5GPPP) has recently published a white paper about 5G service indoors, since up to now, it had mainly focused on the outdoors. In an indoor environment, the requirements are different since the propagation mechanism differs from other scenarios. Furthermore, previous works have shown that space frequency block code (SFBC) techniques applied to multiple antennas improve performance compared to single-input single-output (SISO) systems. This paper presents an experimental study in an indoor environment regarding the performance of a massive multiple-input multiple-output (mMIMO) millimeter-wave (mmWave) system based on the 5G New Radio (NR) standard in two frequency bands. In a first step, the 38 and 65 GHz bands are compared by applying a low-complexity hybrid beamforming (HBF) algorithm. In a second step, the throughput and the maximum achievable distance are studied using a new algorithm that combines the SFBC technique and HBF. Results show, at 38 GHz with HBF and aggregated bandwidths (4 × 100 MHz), a maximum throughput of 4.30 Gbit/s up to 4.1 m. At 65 GHz, the SFBC + HBF algorithm improves the communication distance by 1.34, 1.61, or 1.75 m for bandwidths of 100, 200, or 400 MHz, respectively. View Full-Text
Keywords: massive MIMO; mmWave; 38 GHz; 65 GHz; indoor communication; 5G; SFBC; hybrid beamforming massive MIMO; mmWave; 38 GHz; 65 GHz; indoor communication; 5G; SFBC; hybrid beamforming
Show Figures

Figure 1

MDPI and ACS Style

Sanchis-Borrás, C.; Martinez-Ingles, M.-T.; Molina-Garcia-Pardo, J.-M. Massive MIMO Indoor Transmissions at 38 and 65 GHz Applying Novel HBF Techniques for 5G. Sensors 2022, 22, 3716. https://doi.org/10.3390/s22103716

AMA Style

Sanchis-Borrás C, Martinez-Ingles M-T, Molina-Garcia-Pardo J-M. Massive MIMO Indoor Transmissions at 38 and 65 GHz Applying Novel HBF Techniques for 5G. Sensors. 2022; 22(10):3716. https://doi.org/10.3390/s22103716

Chicago/Turabian Style

Sanchis-Borrás, Concepción, Maria-Teresa Martinez-Ingles, and Jose-Maria Molina-Garcia-Pardo. 2022. "Massive MIMO Indoor Transmissions at 38 and 65 GHz Applying Novel HBF Techniques for 5G" Sensors 22, no. 10: 3716. https://doi.org/10.3390/s22103716

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop