Advances in mmWave Massive MIMO Systems

Dear Colleagues,

The use of an unlicensed spectrum at a millimeter-wave (mmWave) frequency band has enabled the massive increase in wireless data associated with the next generation of wireless communications. MmWave has been already considered in 5G NR together with massive MIMO by enabling the technologies needed to meet the quality of service requirements for future wireless communication (B5G and/or 6G). The use of MIMO with mmWave is very attractive since it allows for packing more antennas in the same volume due to the smaller wavelength compared to the current communication systems; hence, the terminals can be equipped with a large number of antennas. The combination of massive MIMO with mmWave is very promising, but it also presents several difficulties. For instance, the channels tend to be more correlated, and the power consumption and high cost of some hardware components of radio frequency (RF) chains (e.g., analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), mixers, power amplifiers, etc., which can be much more complex at mmWave frequencies) make it impracticable to have one fully dedicated RF chain for each antenna. Although several studies on this topic have been carried out in recent years, there are several issues yet to be solved in the design of practical and efficient solutions.

In this Special Issue, we are interested in high-quality submissions that mainly highlight recent advances in massive MIMO mmWave systems. The topics of interest include, but are not limited to, the following:

• Low complexity millimeter wave and massive MIMO architectures (e.g., hybrid);
• Analog–digital transmit and receive beamforming;
• Massive MIMO cell-free schemes;
• Cell-free massive MIMO with radio strips;
• Joint sensing and communication beamforming;
• Distributed and centralized transmit and receive schemes;
• Physical layer security in the context of massive MIMO mmWave systems;
• Reconfigurable and large intelligent surfaces;
• NOMA schemes for massive MIMO and millimeter wave systems.

Technical Program Committee Member:

Dr. Thuan Dinh Do
Affiliation: School of Engineering, University of Mount Union, OH 44601, USA
Homepage: https://sites.google.com/site/thuannthu/
E-mail: [email protected]
Research Interests: reconfigurable intelligent surfaces-assisted networks; ML/federated learning in wireless systems; heterogeneous networks; massive MIMO; mmWave communication networks

Dr. Suneel Yadav
Affiliation: Department of Electronics and Communication Engineering, Indian Institute of Information Technology Allahabad, Prayagraj, 211015, India
Homepage: https://sites.google.com/a/iiita.ac.in/suneelyadav/home
E-mail: [email protected]
Research Interests: reconfigurable intelligent surfaces-aided wireless communications; ambient backscatter communications; mmWave and THz communications; physical layer security; cooperative and relay communications; MIMO communication

Dr. Adão Silva
Guest Editor

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• massive MIMO
• millimeter wave systems
• 6G
• cell-free massive MIMO
• massive MIMO architectures.