Beam Focusing for Near-Field Multiuser MIMO Communications
Weizmann Institute of Science · Ben-Gurion University of the Negev · +4 more institutions
Abstract
Large antenna arrays and high-frequency bands are two key features of future wireless communication systems. The combination of large-scale antennas with high transmission frequencies often results in the communicating devices operating in the near-field (Fresnel) region. In this paper, we study the potential of beam focusing, feasible in near-field operation, in facilitating high-rate multi-user downlink multiple-input multiple-output (MIMO) systems. As the ability to achieve beam focusing is dictated by the transmit antenna, we study near-field signalling considering different antenna structures, including fully-digital architectures, hybrid phase shifter-based precoders, and the emerging dynamic metasurface…
Citation impact
- FWCI
- 258.95
- Percentile
- 100%
- References
- 54
Authors
6- HZHaiyang ZhangCorresponding
Weizmann Institute of Science
- NSNir Shlezinger
Ben-Gurion University of the Negev
- FGFrancesco Guidi
Institute of Electronics, Computer and Telecommunication Engineering, National Research Council
- DDDavide Dardari
University of Bologna
- MFMohammadreza F. Imani
Arizona State University
Topics & keywords
- MIMO
- Computer science
- Antenna (radio)
- Beam steering
- Electronic engineering
- Transmission (telecommunications)
- Wireless
- Phase shift module