Asymptotic analysis of near-field coupling in massive MISO and massive SIMO systems

This paper studies the receiver to transmitter antenna coupling in near-field communications with massive arrays. Although most works in the literature consider that it is negligible and approximate it by zero, there is no rigorous analysis on its relevance for practical systems. In this work, we le...

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Detalles Bibliográficos
Autores: Martí Espelt, Aniol|||0000-0002-5600-8541, Riba Sagarra, Jaume|||0000-0002-5515-8169, Lamarca Orozco, M. Meritxell|||0000-0002-8067-6435, Gràcia Sabaté, Francesc Xavier|||0000-0003-1006-4086
Tipo de recurso: informe técnico
Fecha de publicación:2024
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/427694
Acceso en línea:https://hdl.handle.net/2117/427694
Access Level:acceso abierto
Palabra clave:Antenna coupling
Multiport communication theory
mmWave/THz communications
Wireless communications
Massive MIMO
Descripción
Sumario:This paper studies the receiver to transmitter antenna coupling in near-field communications with massive arrays. Although most works in the literature consider that it is negligible and approximate it by zero, there is no rigorous analysis on its relevance for practical systems. In this work, we leverage multiport communication theory to obtain conditions for the aforementioned approximation to be valid in MISO and SIMO systems. These conditions are then particularized for arrays with fixed inter-element spacing and arrays with fixed size.