Modeling, Capacity Studies, Antenna and System Designs for 6G/B6G 3D Continuous-Space Radio Channels Enabled by Electromagnetic Information Theory

Wang CX, Li J, Huang J, Huang C, Zhang Z, Liu Y, Zhou S, Chen Y, You X, Gao X, Cui TJ, Renzo MD, Thompson J, Haas H, Schober R, Zhang R (2025)

Publication Type: Journal article

Publication year: 2025

Journal

IEEE Communications Surveys & Tutorials Institute of Electrical and Electronics Engineers (IEEE)

DOI: 10.1109/COMST.2025.3562896

Abstract

Channel theory is a fundamental theory of wireless communications. The sixth generation (6G) and beyond 6G (B6G) wireless communication networks are expected to provide space-air-ground-sea global coverage. Base stations and users tend to move in three dimensional (3D) continuous spaces, while antennas and propagation environments can be tightly coupled. The underlying channels show an evolutionary trend to 3D continuous-space radio channels that combine antennas and wireless propagation channels, in comparison to discrete local-space wireless propagation channels in previous generations. This introduces new challenges for channel modeling, channel capacity analysis, antenna design, system design, etc. To address these challenges, this paper performs a comprehensive study on 3D continuous-space radio channels in 6G/B6G with the aid of electromagnetic information theory (EIT) that integrates electromagnetic theory, information theory, wireless propagation channel modeling theory, and antenna theory. We start by revealing the connections and gaps between these four fundamental theories. Then, an in-depth investigation on the four major research thrusts of 3D continuous-space radio channels is provided: 1) channel measurements and modeling, 2) channel capacity analysis, 3) general antenna design, and 4) wireless system design. We aim to explore the intrinsic relationships between antenna parameters, channel parameters, channel characteristics, channel capacity, and communication system performance. Finally, future research directions and challenges for 3D continuous-space radio channels are outlined. Our study endeavors to establish a fundamental framework for 3D continuous-space radio channels, with the potential to catalyze breakthroughs in 6G/B6G theories.

Authors with CRIS profile

Robert Schober Lehrstuhl für Digitale Übertragung (IDC)

Involved external institutions

Southeast University / 东南大学 CN China (CN) Zhejiang University / Chekiang University / 浙江大学 CN China (CN) Xidian University CN China (CN) The Chinese University of Hong Kong (CUHK) CN China (CN) Tsinghua University CN China (CN) Durham University GB United Kingdom (GB) Commissariat à l'énergie atomique FR France (FR) University of Edinburgh GB United Kingdom (GB) University of Cambridge GB United Kingdom (GB)

How to cite

APA:

Wang, C.X., Li, J., Huang, J., Huang, C., Zhang, Z., Liu, Y.,... Zhang, R. (2025). Modeling, Capacity Studies, Antenna and System Designs for 6G/B6G 3D Continuous-Space Radio Channels Enabled by Electromagnetic Information Theory. IEEE Communications Surveys & Tutorials. https://doi.org/10.1109/COMST.2025.3562896

MLA:

Wang, Cheng Xiang, et al. "Modeling, Capacity Studies, Antenna and System Designs for 6G/B6G 3D Continuous-Space Radio Channels Enabled by Electromagnetic Information Theory." IEEE Communications Surveys & Tutorials (2025).

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