A Novel Discrete Phase RIS-Aided MIMO Multiuser Transceiver Design Using Dirty Paper Coding

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-02-25 DOI:10.1109/LCOMM.2025.3545366

Hsiao-Feng Lu

引用次数: 0

Abstract

In this letter we present a novel transceiver design for RIS-aided MIMO multiuser downlink communications. The design employs dirty paper coding and practical discrete-phase RIS to overcome the limitations of existing techniques and achieve the ultimate channel sum-rate capacity. The new design supports arbitrary number of antennas and users and provides a practical solution for next-generation wireless networks. In particular, a new method is proposed for optimizing the discrete phase shifts of RIS, with polynomial complexity in the number of RIS elements and linear complexity relative to the number discrete phases. Simulations show that our design with QPSK-phase RIS offers a cost-effective solution with significant performance improvement upon existing works for RIS-aided MIMO communications.

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.