Hybrid three-dimensional power allocation for JIQ-NOMA based multi-user VLC systems

被引：0
作者：
Tang, Yuru [1 ,3 ]
Chen, Chen [2 ]
Tang, Xinke [3 ]
Fu, H. Y. [1 ,3 ]
机构：
[1] Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Guangdong, Peoples R China
[2] Chongqing Univ, Sch Microelect & Commun Engn, Chongqing 400044, Peoples R China
[3] Pengcheng Lab PCL, Shenzhen 518055, Guangdong, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2025年 / 591卷
基金：
中国国家自然科学基金;
关键词：
Visible light communication (VLC); Three-dimensional power allocation (3DPA); Joint in-phase and quadrature non-orthogonal multiple access (JIQ-NOMA); NONORTHOGONAL MULTIPLE-ACCESS; PERFORMANCE;
D O I：
10.1016/j.optcom.2025.132029
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Visible light communication (VLC) is an emerging technology for high-speed, short-range wireless communication. Power allocation among users in multi-user VLC systems is a critical issue that affects the system performance, particularly in the presence of varying channel conditions. In this paper, a novel three-dimensional power allocation (3DPA) scheme is proposed for joint in-phase and quadrature non-orthogonal multiple access (JIQ-NOMA) based multi-user VLC systems. The proposed 3DPA scheme aims to allocate power effectively among different user groups in VLC systems, thereby enhancing the overall system performance and improving fairness, particularly in light-based communication systems with varying channel conditions. Simulation results validate the effectiveness of the proposed 3DPA scheme, demonstrating a significant reduction of 1.8 dB in the transmitted signal-to-noise ratio (SNR) at a bit error rate (BER) of 3.8 x 10(-3), compared to the benchmark scheme. Furthermore, the transmission distance at this target BER can be increased by 14.1% relative to the benchmark scheme.
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页数：7
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