Performance Analysis of WDM in LoS Communications With Arbitrary Orientation and Position

Article Engineering, Electrical & Electronic

Wavenumber-Division Multiplexing in Line-of-Sight Holographic MIMO Communications

Luca Sanguinetti et al.

Summary: Starting from the principles of wave propagation, this study explores the concept of holographic MIMO communications and analyzes the electromagnetic interference and power constraint in a communication system between two spatially-continuous volumes. A wavenumber-division multiplexing (WDM) scheme is obtained using Fourier basis functions, and the interplay among system parameters is studied. The interference can be mitigated using digital processing architectures operating in the wavenumber domain. The developed framework can also be used to represent a communication scheme with uniform linear arrays. Numerical comparisons show that better performance can be achieved with a higher number of radio-frequency chains compared to WDM.

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (2023)

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Article Engineering, Electrical & Electronic

Fourier Plane-Wave Series Expansion for Holographic MIMO Communications

Andrea Pizzo et al.

Summary: Holographic MIMO communications aim to fully exploit the electromagnetic channel's properties, requiring accurate channel modeling for a better understanding of its potential.

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (2022)

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Article Engineering, Electrical & Electronic

Reconfigurable ULAs for Line-of-Sight MIMO Transmission

Heedong Do et al.

Summary: This paper establishes an upper bound on the capacity of line-of-sight multi-antenna channels and shows how uniform linear arrays (ULAs) with SNR-dependent rotation or electronically selecting among multiple ULAs with radial disposition can closely approach or achieve such capacity. The study also introduces reduced-complexity precoders and linear receivers that optimize the channels spawned by these configurable ULA architectures, achieving 96% of capacity with only three ULAs.

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (2021)

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Article Engineering, Electrical & Electronic