Work

Rate Region of RIS-Aided URLLC Broadcast Channels: Diagonal Versus Beyond Diagonal Globally Passive RIS

Year: 2024

Type: article

Abstract: We analyze the finite-block-length rate region of wireless systems aided by reconfigurable intelligent surfaces (RISs), assuming the interference is treated as noise. We consider three nearly passive RIS architectures, including locally passive (LP) diagonal (D), globally passive (GP) D, and GP beyond diagonal (BD) RISs. In a GP RIS, the power constraint is applied globally to the whole surface, while some elements may amplify the incident signal locally. The considered RIS architectures provide substantial performance gains compared with systems operating without RIS. GP BD-RIS outperforms, at the price of increasing the complexity, LP and GP D-RIS as it enlarges the feasible set of allowed solutions. However, the gain provided by BD-RIS decreases with the number of RIS elements. Additionally, deploying RISs provides higher gains as the reliability/latency requirement becomes more stringent.

Source: IEEE Wireless Communications Letters

DOI: 10.1109/lwc.2024.3500100

Authors: Mohammad Soleymani, Alessio Zappone, Eduard Jorswieck, Marco Di Renzo, Ignacio Santamaria

Institutions: Paderborn University, Università degli studi di Cassino e del Lazio Meridionale, Technische Universität Braunschweig, Centre National de la Recherche Scientifique, Université Paris-Saclay, Laboratoire des signaux et systèmes, Universidad de Cantabria

Language: English

Topic: Advanced Wireless Communication Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: green

Funders: European Commission, Agence Nationale de la Recherche, Bundesministerium für Bildung und Forschung, Politecnico di Milano, HORIZON EUROPE Framework Programme, Agencia Estatal de Investigación, CHIST-ERA

Awards: G1175115578, G1190173965, SEamless integratioN of efficient 6G wireleSs tEchnologies for communication and Sensing, G1463304763, G1617124451, Joint Sensing and Communications for Future Interactive, Immersive, and Intelligent Connectivity Beyond Communications, G2262748287, G2295054390, G2382142159, G2559059231, G2601397997, G2987309065, G300979063, Physics-based wireless AI providing scalability and efficiency, G34346518, G3480869486, G3531172524, G3681454997, Power-efficient radio interface for sub-7GHz distributed massive MIMO infrastructUres, G4042783231, G425668148, G4304351497, G4384862669, Verbundprojekt: 6G Research and Innovation Cluster (6G-RIC) Offene und sichere 6G-Technologien: Weltmarktchance für Deutschland - 6G-RIC -, Teilvorhaben: Integrierte Schaltungen, Kommunikationstechnik und Netzwerke für die 6. Mobilfunkgeneration, G5080475149, G6683820337, G7001747737, G8921317170

OpenAlex ID: W4404479865

FWCI: 0.411

Cites: 19

Cited by: 4

Related to: 10