Two-dimensional power allocation scheme for NOMA-based underwater visible light communication systems

被引：3
作者：
Chen, Danyang [1 ]
Fan, Kai [1 ]
Wang, Jianping [1 ]
Lu, Huimin [1 ,2 ]
Jin, Jianli [1 ]
Liu, Changling [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Comp & Commun Engn, Beijing 100083, Peoples R China
[2] Shunde Grad Sch Univ Sci & Technol Beijing, Foshan 528000, Peoples R China
来源：
APPLIED OPTICS | 2023年 / 62卷 / 01期
关键词：
PERFORMANCE;
D O I：
10.1364/AO.480465
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work, a two-dimensional power allocation scheme combining fractional transmit power allocation (FTPA) and the sine cosine algorithm (SCA) is proposed for non-orthogonal multiple access (NOMA)-based underwater visible light communication (UVLC) systems. Considering the proposed power allocation scheme, a downlink NOMA-based UVLC system using blue-light-emitting diodes in the deep-sea environment is set up to evaluate the influence of the FTPA coefficient and SCA on system communication performance. The simulation results demonstrate that the two-dimensional power allocation scheme can effectively reduce the impact of user pairing on system performance and improve the system transmission rate compared with the conventional power allocation scheme. (c) 2022 Optica Publishing Group
引用
收藏
页码：211 / 216
页数：6
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