Full-Duplex RO-ISAC System: Wavelength Division Duplexing and Hybrid Waveform Design

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-03-19 DOI:10.1109/LPT.2025.3570997

Shuhang Chen;Chen Chen;Zhihong Zeng;Yanbing Yang;Harald Haas

{"title":"Full-Duplex RO-ISAC System: Wavelength Division Duplexing and Hybrid Waveform Design","authors":"Shuhang Chen;Chen Chen;Zhihong Zeng;Yanbing Yang;Harald Haas","doi":"10.1109/LPT.2025.3570997","DOIUrl":null,"url":null,"abstract":"Integrated sensing and communication (ISAC) using light has attracted attention recently, and retroreflective optical ISAC (RO-ISAC) realizes passive sensing by equipping the target with a corner cube reflector (CCR) to enhance light reflection. In this Letter, we propose and demonstrate a full-duplex RO-ISAC system based on wavelength division duplexing (WDD) with a hybrid waveform design. Specifically, WDD is enabled by adopting blue and green lights for downlink and uplink transmissions, respectively. To avoid the interference between the reflected downlink signal and the uplink signal, a pair of blue and green optical filters are employed. Moreover, a hybrid single-carrier and multi-carrier (HSM) waveform consisting of both pulse amplitude modulation (PAM) and orthogonal frequency division multiplexing (OFDM) samples is further proposed to achieve flexible performance trade-off between communication and sensing in the full-duplex RO-ISAC system. Our experiments successfully demonstrate a RO-ISAC system supporting downlink 125 Mb/s and uplink 12.5 Mb/s full-duplex transmission with a ranging root mean square error less than 4 cm.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 15","pages":"869-872"},"PeriodicalIF":2.3000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Photonics Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/11006732/","RegionNum":3,"RegionCategory":"工程技术","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

Integrated sensing and communication (ISAC) using light has attracted attention recently, and retroreflective optical ISAC (RO-ISAC) realizes passive sensing by equipping the target with a corner cube reflector (CCR) to enhance light reflection. In this Letter, we propose and demonstrate a full-duplex RO-ISAC system based on wavelength division duplexing (WDD) with a hybrid waveform design. Specifically, WDD is enabled by adopting blue and green lights for downlink and uplink transmissions, respectively. To avoid the interference between the reflected downlink signal and the uplink signal, a pair of blue and green optical filters are employed. Moreover, a hybrid single-carrier and multi-carrier (HSM) waveform consisting of both pulse amplitude modulation (PAM) and orthogonal frequency division multiplexing (OFDM) samples is further proposed to achieve flexible performance trade-off between communication and sensing in the full-duplex RO-ISAC system. Our experiments successfully demonstrate a RO-ISAC system supporting downlink 125 Mb/s and uplink 12.5 Mb/s full-duplex transmission with a ranging root mean square error less than 4 cm.

查看原文本刊更多论文

全双工RO-ISAC系统：波分双工和混合波形设计

光集成传感与通信（ISAC）是近年来备受关注的一种新型传感技术，反射光集成传感与通信（RO-ISAC）通过在目标上安装角立方反射器（CCR）来增强光的反射，实现被动传感。在本文中，我们提出并演示了一种基于波分双工（WDD）的混合波形设计的全双工RO-ISAC系统。具体来说，WDD是通过下行和上行分别采用蓝灯和绿灯来实现的。为了避免反射的下行信号和上行信号之间的干扰，采用了一对蓝色和绿色滤光片。此外，进一步提出了由脉冲调幅（PAM）和正交频分复用（OFDM）采样组成的单载波和多载波混合（HSM）波形，以实现全双工RO-ISAC系统中通信和传感之间的灵活性能权衡。我们的实验成功地证明了RO-ISAC系统支持下行125 Mb/s和上行12.5 Mb/s的全双工传输，测距均方根误差小于4 cm。

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

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.