STAR-RIS-aided RSMA for the URLLC multi-user MIMO Downlink

Soleymani M, Santamaria I, Jorswieck E, Schober R, Hanzo L (2025)


Publication Type: Conference contribution

Publication year: 2025

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 85-90

Conference Proceedings Title: WSA 2025 - Proceedings of the 28th International Workshop on Smart Antennas

Event location: Erlangen DE

ISBN: 9798350392685

DOI: 10.1109/WSA65299.2025.11202796

Abstract

Rate splitting multiple access (RSMA) is intrinsically amalgamated with simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surfaces (RIS) to enhance energy efficiency (EE) of the finite block length (FBL) multiple-input multiple-output (MIMO) downlink. An alternating optimization-based algorithm is proposed to jointly optimize the transmit beamforming matrices, STAR-RIS configurations, and rate-splitting parameters. STAR-RIS attains 360-degree full-plane coverage, while RSMA provides a prominent gain by efficiently managing interference. Numerical results reveal a strong synergy between RSMA and STAR-RIS, demonstrating significant EE gains over reflective RIS and spatial division multiple access (SDMA).

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How to cite

APA:

Soleymani, M., Santamaria, I., Jorswieck, E., Schober, R., & Hanzo, L. (2025). STAR-RIS-aided RSMA for the URLLC multi-user MIMO Downlink. In Angelika S. Thalmayer, Maximilian Lubke (Eds.), WSA 2025 - Proceedings of the 28th International Workshop on Smart Antennas (pp. 85-90). Erlangen, DE: Institute of Electrical and Electronics Engineers Inc..

MLA:

Soleymani, Mohammad, et al. "STAR-RIS-aided RSMA for the URLLC multi-user MIMO Downlink." Proceedings of the 28th International Workshop on Smart Antennas, WSA 2025, Erlangen Ed. Angelika S. Thalmayer, Maximilian Lubke, Institute of Electrical and Electronics Engineers Inc., 2025. 85-90.

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