Digital Beamforming-Based Massive MIMO Transceiver for 5G Millimeter-Wave Communications

By Binqi Yang, Zhiqiang Yu, Ji Lan, Ruoqiao Zhang, Jianyi Zhou, Wei Hong. IEEE transactions on microwave theory and techniques, 2018

385 citations recorded by the source corpus.

A 64-channel massive multiple-input multiple-output (MIMO) transceiver with a fully digital beamforming (DBF) architecture for fifth-generation millimeter-wave communications is presented in this paper. The DBF-based massive MIMO transceiver is operated at 28-GHz band with a 500-MHz signal bandwidth and the time division duplex mode. The antenna elements are arranged as a 2-D array, which has 16 columns (horizontal direction) and 4 rows (vertical direction) for a better beamforming resolution in the horizontal plane. To achieve half-wavelength element spacing in the horizontal direction, a new sectorial transceiver array design with a bent substrate-integrated waveguide is proposed. The measured results show that an excellent RF performance is achieved. The system performance is tested with the over-the-air technique to verify the feasibility of the proposed DBF-based massive MIMO transceiver for high data rate millimeter-wave communications. Using the beam-tracking technique and two streams of QAM-64 signals, the proposed millimeter-wave MIMO transceiver can achieve a steady 5.3-Gb/s throughput for a single user in fast mobile environments. In the multiple-user MIMO scenario, by delivering 20 noncoherent data streams to eight four-channel user terminals, it achieves a downlink peak data rate of 50.73 Gb/s with the spectral efficiency of 101.5 b/s/Hz.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/5451afbc66b5da6cc74e7c0adbf8872363ffa3b6

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

Citations in the corpus

6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities (2020, background): “Having said this, recent progress in high-frequency electronics has facilitated digital beamforming for 64 antennas at 28 GHz, as shown in [93].”
Massive MIMO Systems for 5G and beyond Networks—Overview, Recent Trends, Challenges, and Future Research Direction (2020, background): “Beamforming helps the base station to find a suitable route to deliver data to the user, and it also reduces interference with nearby users along the route [20], as shown in Figure 6.”
A Survey on Mobile Augmented Reality With 5G Mobile Edge Computing: Architectures, Applications, and Technical Aspects (2021, background): “on the base station and combines it with complex algorithms for coordination to achieve drastic improvements in throughput and efficiency [110].”
Edge Computing in 5G: A Review (2019, positive): “5G is comprised of threemain new technologies to provide higher network capacity in order to support a higher number of UEs [18].”