Deep Learning Based Design of Binary Signalling for Optical Wireless Communication Systems With 2D Receiver

IF 1.6 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Yongwoon Hwang, Chung Ghiu Lee, Soeun Kim
{"title":"Deep Learning Based Design of Binary Signalling for Optical Wireless Communication Systems With 2D Receiver","authors":"Yongwoon Hwang,&nbsp;Chung Ghiu Lee,&nbsp;Soeun Kim","doi":"10.1049/ote2.70015","DOIUrl":null,"url":null,"abstract":"<p>Recently, deep learning (DL) techniques have been increasingly applied to communication system design, owing to their powerful capabilities in handling complex channel characteristics. We apply a DL technique to binary signalling design for optical wireless communication system, which incorporates a <span></span><math>\n <semantics>\n <mrow>\n <mn>2</mn>\n <mo>×</mo>\n <mn>2</mn>\n </mrow>\n <annotation> $2\\times 2$</annotation>\n </semantics></math> light-emitting diode (LED) transmitter array. The <span></span><math>\n <semantics>\n <mrow>\n <mn>2</mn>\n <mo>×</mo>\n <mn>2</mn>\n </mrow>\n <annotation> $2\\times 2$</annotation>\n </semantics></math> LED transmitter array is adopted for two-dimensional (2D) arrayed photodiode receiver. The system encodes binary bit streams into <span></span><math>\n <semantics>\n <mrow>\n <mn>2</mn>\n <mo>×</mo>\n <mn>2</mn>\n </mrow>\n <annotation> $2\\times 2$</annotation>\n </semantics></math> LED lighting patterns and the 2D received lighting patterns are interpreted as 2D images, which are decoded for retrieving the binary bit stream. For conventional on-off keying (OOK) signal for optical wireless communication system, it is necessary to choose appropriate 2D lighting patterns to represent binary logic symbols effectively. In this paper, we propose a design algorithm for binary signalling to generate appropriate 2D binary symbols. The DL-based signalling design algorithm is implemented as an autoencoder (AE) structure. It is trained with the set of transmitted and received signal patterns over the physical channel model with additive noise. To validate the proposed signalling design scheme, we adopt a two-step approach. Firstly, the signalling design algorithm generates binary LED signal sets after appropriate training processes. Secondly, from the generated signal sets, the LED patterns of interest are investigated considering their symbol error rate (SER) performance. It is confirmed that the proposed design algorithm provides binary signalling sets that meet the required SER performance. Through this study, it is demonstrated that DL-based signalling design is feasible, and the results are expected to contribute to further research aimed at extending the approach to more practical and complex system scenarios.</p>","PeriodicalId":13408,"journal":{"name":"Iet Optoelectronics","volume":"19 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ote2.70015","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iet Optoelectronics","FirstCategoryId":"94","ListUrlMain":"https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/ote2.70015","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0

Abstract

Recently, deep learning (DL) techniques have been increasingly applied to communication system design, owing to their powerful capabilities in handling complex channel characteristics. We apply a DL technique to binary signalling design for optical wireless communication system, which incorporates a 2 × 2 $2\times 2$ light-emitting diode (LED) transmitter array. The 2 × 2 $2\times 2$ LED transmitter array is adopted for two-dimensional (2D) arrayed photodiode receiver. The system encodes binary bit streams into 2 × 2 $2\times 2$ LED lighting patterns and the 2D received lighting patterns are interpreted as 2D images, which are decoded for retrieving the binary bit stream. For conventional on-off keying (OOK) signal for optical wireless communication system, it is necessary to choose appropriate 2D lighting patterns to represent binary logic symbols effectively. In this paper, we propose a design algorithm for binary signalling to generate appropriate 2D binary symbols. The DL-based signalling design algorithm is implemented as an autoencoder (AE) structure. It is trained with the set of transmitted and received signal patterns over the physical channel model with additive noise. To validate the proposed signalling design scheme, we adopt a two-step approach. Firstly, the signalling design algorithm generates binary LED signal sets after appropriate training processes. Secondly, from the generated signal sets, the LED patterns of interest are investigated considering their symbol error rate (SER) performance. It is confirmed that the proposed design algorithm provides binary signalling sets that meet the required SER performance. Through this study, it is demonstrated that DL-based signalling design is feasible, and the results are expected to contribute to further research aimed at extending the approach to more practical and complex system scenarios.

Abstract Image

Abstract Image

Abstract Image

Abstract Image

基于深度学习的二维接收光无线通信系统二进制信令设计
近年来,深度学习技术由于其处理复杂信道特性的强大能力,越来越多地应用于通信系统设计中。我们将DL技术应用于光无线通信系统的二进制信号设计,该系统包含一个2 × 2$ 2\ × 2$发光二极管(LED)发射机阵列。二维(2D)阵列光电二极管接收机采用2 × 2$ 2\ × 2$ LED发射阵列。该系统将二进制比特流编码为2 × 2$ 2\ × 2$ LED照明模式,接收到的2D照明模式被解释为2D图像,对2D图像进行解码以检索二进制比特流。对于无线光通信系统中传统的开关键控信号,需要选择合适的二维照明模式来有效地表示二进制逻辑符号。本文提出了一种二进制信号的设计算法,以生成合适的二维二进制符号。基于dl的信令设计算法实现为自编码器(AE)结构。它是用带有加性噪声的物理信道模型上的发送和接收信号模式集进行训练的。为了验证所提出的信号设计方案,我们采用了两步方法。首先,信号设计算法经过适当的训练过程生成二值LED信号集。其次,从生成的信号集出发,考虑其符号误差率(SER)性能,对感兴趣的LED模式进行研究。实验证明,所提出的设计算法提供的二进制信令集能够满足所要求的SER性能。通过这项研究,证明了基于dl的信号设计是可行的,并且结果有望有助于进一步的研究,旨在将该方法扩展到更实际和复杂的系统场景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Iet Optoelectronics
Iet Optoelectronics 工程技术-电信学
CiteScore
4.50
自引率
0.00%
发文量
26
审稿时长
6 months
期刊介绍: IET Optoelectronics publishes state of the art research papers in the field of optoelectronics and photonics. The topics that are covered by the journal include optical and optoelectronic materials, nanophotonics, metamaterials and photonic crystals, light sources (e.g. LEDs, lasers and devices for lighting), optical modulation and multiplexing, optical fibres, cables and connectors, optical amplifiers, photodetectors and optical receivers, photonic integrated circuits, photonic systems, optical signal processing and holography and displays. Most of the papers published describe original research from universities and industrial and government laboratories. However correspondence suggesting review papers and tutorials is welcomed, as are suggestions for special issues. IET Optoelectronics covers but is not limited to the following topics: Optical and optoelectronic materials Light sources, including LEDs, lasers and devices for lighting Optical modulation and multiplexing Optical fibres, cables and connectors Optical amplifiers Photodetectors and optical receivers Photonic integrated circuits Nanophotonics and photonic crystals Optical signal processing Holography Displays
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信