Joint Beam-and-Probabilistic Shaping Scheme Based on Orbital Angular Momentum Mode for Indoor Optical Wireless Communications

被引：5

作者：

Li, Jianghao ^{[1
]}

Yang, Qi ^{[2
]}

Dai, Xiaoxiao ^{[2
]}

Lim, Christina ^{[1
]}

Nirmalathas, Ampalavanapillai ^{[1
]}

机构：

[1] Univ Melbourne, Dept Elect & Elect Engn, Melbourne, Vic 3010, Australia

[2] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2023年 / 41卷 / 20期

基金：

澳大利亚研究理事会;

关键词：

Huffman coding; indoor optical wireless communications; orbital angular momentum; probabilistic shaping; sign inversion coding; ALL-FIBER LASER; TRANSMISSION; DIVERSITY;

D O I：

10.1109/JLT.2023.3287579

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article, we propose a novel beam-and-probabilistic shaping technique based on orbital angular momentum (OAM) modes for indoor optical wireless communications (OWC) to improve the system effective coverage. Our results show that both Huffman coding (HC) and sign inversion coding (SIC) based probabilistic shaping schemes can improve the effective coverage for 16QAM modulation format while only SIC based probabilistic shaping can improve the effective coverage for 64QAM modulation under different beam shaping schemes with different power ratios of different modes. Furthermore, it can be seen that more significant performance improvement can be obtained by employing both of the probabilistic shaping schemes by decreasing the power ratio of the fundamental mode to the higher-order OAM mode. Therefore, further increment of the effective coverage can be predicted with the probabilistic shaping schemes by decreasing the power ratio.

引用

页码：6488 / 6495

页数：8

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