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arXiv · 2512.17171

RSMA-Assited and Transceiver-Coordinated ICI Management for MIMO-OFDM System

Hengyu Zhang·Xuehan Wang·Xu Shi·Jintao Wang·Zhaohui Yang
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Abstract

High-mobility scenarios are becoming increasingly critical in next-generation communication systems. While multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) stands as a prominent technology, its performance in such scenarios is fundamentally limited by Doppler-induced inter-carrier interference (ICI). Rate splitting multiple access (RSMA), recognized as a key multiple access technique for future communications, demonstrates superior interference management capabilities that we leverage to address this challenge. In specific, we propose a novel RSMA-assisted and transceiver-coordinated transmission scheme for ICI management in MIMO-OFDM system: (1) At the receiver side, we develop a hybrid successive interference cancellation (SIC) architecture with dynamic subcarrier clustering, which enables parallel intra-cluster and serial inter-cluster processing to balance complexity and performance. (2) At the transmitter~side, we design a matched hybrid precoding through formulated sum-rate maximization, solved via our proposed augmented boundary-compressed particle swarm optimization (ABC-PSO) algorithm for analog phase optimization and weighted minimum mean-square error (WMMSE)-based digital precoding iteration. Simulation results show that our scheme brings effective ICI suppression and enhanced system capacity with controlled complexity.

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Hengyu Zhang, Xuehan Wang, Xu Shi, Jintao Wang, Zhaohui Yang. 2025-12-19. RSMA-Assited and Transceiver-Coordinated ICI Management for MIMO-OFDM System. https://arxiv.org/abs/2512.17171

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