Strengthening Data Confidentiality in 6G Cognitive Networks Through Secrecy Rate Optimization

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-01-31 DOI:10.1109/LCOMM.2025.3537285

Umar Ghafoor

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引用次数: 0

Abstract

To address the increasing need for secure resource allocation and bandwidth management in 6th generation (6G) networks, this letter presents a novel cluster-based cognitive radio-enabled downlink hybrid access (CCRDHA) approach. Traditional methods struggle to efficiently use the spectrum, leading to the adoption of cognitive networks (CNs). In CN, licensed mobile sets (LMSs) connect to licensed towers (LTs), while cognitive mobile sets (CMSs) connect to cognitive towers (CTs) via opportunistic spectrum sensing. The CCRDHA approach combines orthogonal access (OA) and non-orthogonal access (NOA) to boost the secrecy rate (SR) in the presence of passive eavesdropper, optimize CMS access to cluster (CMSC), enhance CMS connectivity with CTs (CMSCT), fairness in CMSCT (FCMSCT), and fair power distribution (FPD). By formulating the novel problem as a mixed-integer non-linear programming (MINLP) model, solved using an

$\epsilon $

-optimal outer approximation algorithm (OAA), CCRDHA outperforms conventional OA-CN and NOA-CN methods, improving key parameters (KPs) such as SR, CMSC, CMSCT, FCMSCT, quality of service (QoS) while reducing spectrum wastage (SW) and spectrum collision (SC).

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通过保密率优化加强6G认知网络的数据保密性

为满足第六代（6G）网络对安全资源分配和带宽管理日益增长的需求，本文提出了一种新颖的基于集群的认知无线电下行链路混合接入（CCRDHA）方法。传统方法难以有效利用频谱，导致了认知网络（CN）的采用。在认知网络中，许可移动设备（LMS）连接到许可塔（LT），而认知移动设备（CMS）则通过机会性频谱感知连接到认知塔（CT）。CCRDHA 方法结合了正交接入 (OA) 和非正交接入 (NOA)，可在存在被动窃听者的情况下提高保密率 (SR)、优化 CMS 接入集群 (CMSC)、增强 CMS 与 CT 的连接 (CMSCT)、CMSCT 中的公平性 (FCMSCT) 和公平功率分配 (FPD)。CCRDHA 将新问题表述为混合整数非线性编程（MINLP）模型，使用最优外近似算法（OAA）求解，结果优于传统的 OA-CN 和 NOA-CN 方法，改善了关键参数（KPs），如 SR、CMSC、CMSCT、FCMSCT、服务质量（QoS），同时减少了频谱浪费（SW）和频谱碰撞（SC）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.