Year: 2025
Type: conference-paper
Abstract: Holographic multiple-input multiple-output (MIMO) is envisioned as one of the most promising technology enablers for future sixth-generation (6G) networks. The use of electrically large holographic surface (HoloS) antennas has the potential to significantly boost the spatial multiplexing gain by increasing the number of degrees of freedom (DoF), even in line-of-sight (LoS) channels. In this context, the research community has shown a growing interest in characterizing the fundamental limits of this technology. In this paper, we compare the two analytical methods commonly utilized in the literature for this purpose: the cut-set integral and the self-adjoint operator. We provide a detailed description of both methods and discuss their advantages and limitations.
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Awards: G1190173965, G1463304763, G1617124451, Joint Sensing and Communications for Future Interactive, Immersive, and Intelligent Connectivity Beyond Communications, G2559059231, G2628699049, G2987309065, Physics-based wireless AI providing scalability and efficiency, Industrial Doctorate Training Network on Future Wireless Connected and Automated Industry enabled by 5G, G4384862669, G4937468798, G6683820337, G8921317170
OpenAlex ID: W4410583246