Beamforming design for active RIS‐aided NOMA networks. Issue 4 (30th December 2022)

• Record Type: Journal Article
• Authors: Yang, Fengming; Dai, Jianxin; Pan, Cunhua
• Is Part Of: IET communications. Volume 17:Issue 4(2023)
• Page Start: 460
• Page End: 468
• Publication Date: 2022-12-30
• Subjects: active RIS -- NOMA -- beamforming design; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/cmu2.12556
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract: This paper studies the beamforming design for an active reconfigurable intelligent surface (RIS) aided non‐orthogonal multiple access (NOMA) network. It aims to minimize the transmission power while satisfying the requirement of the quality of service (QoS). To solve this problem, an iterative algorithm based on approximate transformations and penalty functions is proposed. Finally, simulation results illustrate that an active RIS‐aided NOMA system can achieve significant performance gains over the passive RIS‐aided NOMA network. Abstract : This paper studies the beamforming design for an active reconfigurable intelligent surface (RIS) aided non‐orthogonal multiple access (NOMA) network. We propose an iterative algorithm based on approximate transformations and penalty function. And simulation results illustrate that an active RIS‐aided NOMA system can achieve significant performance gains over the passive RIS‐ aided NOMA network.