High secure and reliable MMW-RoF based on CSI and dynamic key distribution

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-06-18 DOI:10.1016/j.yofte.2025.104310

Yaoqiang Xiao , Yuehui Chen , Bingshuai Wang , Zhiyi Wang , Zhiyu Wei , Qun Ye

{"title":"High secure and reliable MMW-RoF based on CSI and dynamic key distribution","authors":"Yaoqiang Xiao , Yuehui Chen , Bingshuai Wang , Zhiyi Wang , Zhiyu Wei , Qun Ye","doi":"10.1016/j.yofte.2025.104310","DOIUrl":null,"url":null,"abstract":"<div><div>This paper proposes a channel state information-driven dynamic key distribution (CSI-DKD) scheme implementing a one-time pad (OTP) strategy in W-band millimeter-wave radio-over-fiber (MMW-RoF) system, achieving co-optimization of physical-layer security and transmission reliability. For high security, the strong randomness and fast time-varying nature of wireless channels are utilized and more complex key generation protocol is introduced to obtain keys with higher encryption strength, and synchronous sequences are used to achieve key distribution. Then, Chua’s and hyper chaotic systems are applied to generate non-linear encryption sequences, OFDM data are encrypted from three stages: bidirectional diffusion, constellation masking, and subcarrier scrambling. To improve the reliability of the system, polar codes are used to correct error bits. This scheme has been experimentally validated on the W-band MMW RoF system, and the results show that the proposed method has strong security, compared with the traditional OFDM signal, when the bit err rate is 10<sup>-3</sup>, the received optical power gain of the proposed scheme is ∼ 3.25 dB. And the analyses of the results show that the secure scheme can innovate the OTP system by dynamic key generation and distribution, effectively enhance system security and improve transmission performance.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"94 ","pages":"Article 104310"},"PeriodicalIF":2.6000,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Fiber Technology","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1068520025001853","RegionNum":3,"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

This paper proposes a channel state information-driven dynamic key distribution (CSI-DKD) scheme implementing a one-time pad (OTP) strategy in W-band millimeter-wave radio-over-fiber (MMW-RoF) system, achieving co-optimization of physical-layer security and transmission reliability. For high security, the strong randomness and fast time-varying nature of wireless channels are utilized and more complex key generation protocol is introduced to obtain keys with higher encryption strength, and synchronous sequences are used to achieve key distribution. Then, Chua’s and hyper chaotic systems are applied to generate non-linear encryption sequences, OFDM data are encrypted from three stages: bidirectional diffusion, constellation masking, and subcarrier scrambling. To improve the reliability of the system, polar codes are used to correct error bits. This scheme has been experimentally validated on the W-band MMW RoF system, and the results show that the proposed method has strong security, compared with the traditional OFDM signal, when the bit err rate is 10^-3, the received optical power gain of the proposed scheme is ∼ 3.25 dB. And the analyses of the results show that the secure scheme can innovate the OTP system by dynamic key generation and distribution, effectively enhance system security and improve transmission performance.

查看原文本刊更多论文

基于CSI和动态密钥分配的高安全可靠毫米波射频

提出了一种在w波段毫米波光纤无线通信（MMW-RoF）系统中实现一次性pad （OTP）策略的信道状态信息驱动动态密钥分配（CSI-DKD）方案，实现了物理层安全性和传输可靠性的协同优化。为了提高安全性，利用无线信道的强随机性和快速时变特性，引入更复杂的密钥生成协议来获得更高加密强度的密钥，并采用同步序列来实现密钥分发。然后，利用Chua系统和超混沌系统生成非线性加密序列，分双向扩散、星座掩蔽和子载波置乱三个阶段对OFDM数据进行加密。为了提高系统的可靠性，采用极性码对误码位进行校正。该方案在w波段毫米波RoF系统上进行了实验验证，结果表明，所提方法具有较强的安全性，与传统的OFDM信号相比，误码率为10-3时，所提方案的接收光功率增益为 ~ 3.25 dB。分析结果表明，该安全方案能够通过动态密钥生成和分发实现对OTP系统的创新，有效地增强了系统的安全性，提高了传输性能。

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

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.