STAR-RIS Assisted MISO-NOMA Networks: A Simultaneous Signal Enhancement and Interference Mitigation Design
Li J, Song Z, Hou T, Huang C, Li A, Zhou G, Liu Y (2024)
Publication Language: English
Publication Type: Journal article
Publication year: 2024
Journal
DOI: 10.1109/TCOMM.2024.3522041
Abstract
Simultaneous transmitting and reflecting (STAR) reconfigurable intelligent surface (RIS) technique has recently received considerable attention due to its omni-directional radiation capability. In this paper, motivated by the interference-mitigation-based (IMB) and signal-enhancement-based (SEB) designs, we introduce an innovative STAR-RIS assisted simultaneous-signal-enhancement-and-interference-mitigation (SSEIM) design in non-orthogonal multiple access (NOMA) multiple-input single-output cellular communication networks. Our objective is to maximize the system spectral efficiency (SE) by jointly optimizing the reflection and transmission phase shifts at the STAR-RIS, the precoding matrix of BSs, and the power allocation factors of NOMA users. We propose a low-complexity simultaneous enhancement and mitigation algorithm. Furthermore, by exploiting the manifold optimization technique, we introduce the Riemannian conjugate gradient algorithm to solve the non-convex subproblems with unit modulus constraint. Our analysis reveals that the proposed SSEIM design exceeds the traditional RIS-aided SEB and IMB designs.
Authors with CRIS profile
Involved external institutions
China Mobile / 中国移动
China (CN)
Beijing Jiaotong University / 北京交通大学
China (CN)
Zhejiang University / Chekiang University / 浙江大学
China (CN)
Lancaster University
United Kingdom (GB)
University of Hong Kong (HKU) / 香港大學
Hong Kong (HK)
China (CN)
Beijing Jiaotong University / 北京交通大学
China (CN)
Zhejiang University / Chekiang University / 浙江大学
China (CN)
Lancaster University
United Kingdom (GB)
University of Hong Kong (HKU) / 香港大學
Hong Kong (HK)
How to cite
APA:
Li, J., Song, Z., Hou, T., Huang, C., Li, A., Zhou, G., & Liu, Y. (2024). STAR-RIS Assisted MISO-NOMA Networks: A Simultaneous Signal Enhancement and Interference Mitigation Design. IEEE Transactions on Communications. https://doi.org/10.1109/TCOMM.2024.3522041
MLA:
Li, Jie, et al. "STAR-RIS Assisted MISO-NOMA Networks: A Simultaneous Signal Enhancement and Interference Mitigation Design." IEEE Transactions on Communications (2024).
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