SIC-Free Based Indoor Two-User NOMA-VLCP System

被引：0
|
作者：
Jin, Jianli [1 ]
Shang, Qianlong [1 ]
Wang, Jianping [1 ]
Lu, Huimin [1 ]
Chen, Danyang [1 ]
Yang, Dongmei [2 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Comp & Commun Engn, Beijing 100083, Peoples R China
[2] World Telecom Satellite Technol Ltd, Beijing 100022, Peoples R China
来源：
PHOTONICS | 2024年 / 11卷 / 12期
基金：
中国国家自然科学基金;
关键词：
SIC-Free; NOMA; VLCP; AFT; NONORTHOGONAL MULTIPLE-ACCESS; VISIBLE-LIGHT COMMUNICATION; ACCURACY;
D O I：
10.3390/photonics11121122
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this letter, an integrated dual-user visible light communication and positioning (VLCP) system based on non-orthogonal multiple access (NOMA) is proposed. The system consists of a single light-emitting diode (LED) and five photodiodes (PD), and the adaptive feedback threshold (AFT) algorithm is used to reduce error propagation (EP) to improve noise immunity. The particle swarm optimization (PSO) algorithm is employed to construct a joint optimization function that optimizes the power allocation factor of the two users and the roll-off coefficient of the square-root-raised-cosine(SRRC) filter. The simulation results demonstrate that, in the given indoor environment, the bit error ratio (BER) of each user in the proposed system is lower than the front error correction (FEC) limit and the average positioning errors of the two users are 4.62 cm and 5.74 cm respectively.
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页数：13
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