Energy efficiency optimization of finite block length STAR-RIS-aided MU-MIMO broadcast channels

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URI: https://hdl.handle.net/10902/39112
ISBN: 978-1-6654-7776-5
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Autoría
Soleymani, Mohammad; Santamaría Caballero, Luis IgnacioAutoridad Unican; Jorswieck, Eduard; Schober, Robert; Lajos, Hanzo
Fecha
2025
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© 2025 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publicado en
IEEE 26th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Surrey, United Kingdom, 2025
Editorial
Institute of Electrical and Electronics Engineers, Inc.
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Palabras clave
Energy efficiency
Finite block length
MIMO broadcast channels
Optimization
Resource allocation
STAR-RIS
Resumen/Abstract
Energy-efficient designs are proposed for multi-user (MU) multiple-input multiple-output (MIMO) broadcast channels (BC), assisted by simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surfaces (RIS) operating at finite block length (FBL). In particular, we maximize the sum energy efficiency (EE), showing that STAR-RIS can substantially enhance it. Our findings demonstrate that the gains of employing STAR-RIS increase when the codeword length and the maximum tolerable bit error rate decrease, meaning that a STAR-RIS is more energy efficient in a system with more stringent latency and reliability requirements.
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