International Journal of Communication Systems最新文献_第2页

Four-Port Metasurface-Loaded Graphene–Ceramic THz Radiator With Frequency Tunability, Circular Polarization, and Enhanced Far-Field Decorrelation 具有频率可调谐、圆极化和增强远场去相关的四端口超表面负载石墨烯陶瓷太赫兹辐射器

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-29 DOI: 10.1002/dac.70619

Perumalla Krishna Chaitanya, P. Lakshmi Narayana, Neha Shukla, Kiran Sharma, Remya Madhavan U, Rakhi Dua

{"title":"Four-Port Metasurface-Loaded Graphene–Ceramic THz Radiator With Frequency Tunability, Circular Polarization, and Enhanced Far-Field Decorrelation","authors":"Perumalla Krishna Chaitanya, P. Lakshmi Narayana, Neha Shukla, Kiran Sharma, Remya Madhavan U, Rakhi Dua","doi":"10.1002/dac.70619","DOIUrl":"https://doi.org/10.1002/dac.70619","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, a four-terminal graphene-coated ceramic antenna with a metasurface wall is proposed for tunable terahertz (THz) MIMO communication. The proposed design solves the problems of frequency reconfigurability, circular polarization, high port isolation, and better far-field decorrelation in a compact architecture. The frequency tuning is realized by tuning graphene potential in the range of 0–0.5 eV. The working frequency range can be obtained from 5.30 to 5.95 THz with stable radiation properties. The antenna has circular polarization, mutual coupling less than −25 dB, low ECC < 0.01, and high realized gain across the operating band. Metasurface wall can effectively suppress the surface-wave coupling and enhance the pattern diversity, which is helpful to improve the MIMO working. The projected aerial is capable contender for the upcoming 6G THz radio communication and high-speed data transmission applications owing to compact configuration and excellent diversity characteristics.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Empirically Validated, Resilient SDR-Based CubeSat Communication Architecture Featuring Dynamic AES-256 and Deterministic Frequency Hopping 具有动态AES-256和确定性跳频特性的基于经验验证的弹性sdr的立方体卫星通信体系结构

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-28 DOI: 10.1002/dac.70617

Mert Karahan, Arif Semih Barin

{"title":"An Empirically Validated, Resilient SDR-Based CubeSat Communication Architecture Featuring Dynamic AES-256 and Deterministic Frequency Hopping","authors":"Mert Karahan, Arif Semih Barin","doi":"10.1002/dac.70617","DOIUrl":"https://doi.org/10.1002/dac.70617","url":null,"abstract":"<div>\u0000 \u0000 <p>CubeSats are widely used in low-cost space missions, but their dependence on commercial off-the-shelf (COTS) components and limited onboard resources creates security challenges for telemetry, command, and mission-data links. This study presents a Software-Defined Radio (SDR)-based secure communication architecture evaluated in laboratory conditions for resource-constrained CubeSat applications. The prototype combines dynamic AES-256 key rotation, a deterministic 58-channel Dynamic Channel Switching (DCS) protocol, and a mutual authentication (MuA) mechanism over LoRa modulation. A STRIDE-based threat model is used to identify relevant attack surfaces and examine the proposed countermeasures for spoofing, replay, information disclosure, and denial-of-service scenarios. The system was evaluated through simulation, SDR-based radio-frequency (RF) laboratory tests, and hardware-in-the-loop power profiling. The software implementation of AES-256 required a processing window of 327 μs and accounted for less than 0.02% of the measured packet-transmission energy. In the tested Partial-Band Noise Jammer (PBNJ) scenario, where 6 of 58 messaging channels were jammed, the packet error rate remained close to 10%, consistent with the fraction of jammed channels. These results show that dynamic key rotation and channel switching can be implemented in a laboratory CubeSat communication prototype with low processing and energy overhead.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimized AI-Driven Intelligent Transportation Systems for Secure Communication and Traffic Management in Post-5G Networks 优化后5g网络中安全通信和交通管理的ai驱动智能交通系统

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-25 DOI: 10.1002/dac.70614

Akhil Gupta, Aditya Bakshi, Nitin Rakesh, Mandeep Kaur

{"title":"Optimized AI-Driven Intelligent Transportation Systems for Secure Communication and Traffic Management in Post-5G Networks","authors":"Akhil Gupta, Aditya Bakshi, Nitin Rakesh, Mandeep Kaur","doi":"10.1002/dac.70614","DOIUrl":"https://doi.org/10.1002/dac.70614","url":null,"abstract":"<div>\u0000 \u0000 <p>After 5G vehicular networks, an intelligent transportation system with an AI-based framework encompasses the real-time traffic management, security, and quality of service for safer communication. This paper proposes a new comprehensive framework for improving vehicular network performance based on state-of-the-art AI-developed methods such as deep reinforcement learning, edge AI, trust and reputation systems, and dynamic load balancing. The main goal is to enhance security for real-time vehicular communication while optimizing the vehicular network's efficiency, throughput, latency, and congestion. It leverages a deep reinforcement learning (DRL)-supported (i.e., involves Q-learning) routing algorithm for adaptive traffic management, and we show that by integrating edge AI with security-connected processing into our framework, we can enable real-time decision-making. A reputation method is implemented to evaluate the trustworthiness of vehicles in the network. This strategy is one way to affect load balancing as the system is aware of the locations to direct traffic for the purpose of restricting and thus improving throughput. The outcomes demonstrated the significant impact of this architecture because the AI security modules raised the levels of throughput by nearly 15%, whereas the DRL-based routing improved the overall efficiency and reliability of the network. Moreover, the architecture reveals the possibility of introducing more AI-based techniques to solve the problems faced by future vehicular communication systems. This serves as a promising starting point to reaching applications that would require less time and be further reliable and more effective. The proposed approach is further validated through comparison with existing routing techniques.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RETRACTION: Energy-Optimal and QoS-Aware Data Transmission in Dynamic Mobile Sensor Networks via Scalable Federated Multi-Agent Deep Reinforcement Learning 基于可扩展联邦多智能体深度强化学习的动态移动传感器网络中的能量最优和qos感知数据传输

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-23 DOI: 10.1002/dac.70615

{"title":"RETRACTION: Energy-Optimal and QoS-Aware Data Transmission in Dynamic Mobile Sensor Networks via Scalable Federated Multi-Agent Deep Reinforcement Learning","authors":"","doi":"10.1002/dac.70615","DOIUrl":"https://doi.org/10.1002/dac.70615","url":null,"abstract":"<p><b>RETRACTION</b>: <span>M. Senthamilselvi</span> and <span>C. R. Kumar</span>, “ <span>Energy-Optimal and QoS-Aware Data Transmission in Dynamic Mobile Sensor Networks via Scalable Federated Multi-Agent Deep Reinforcement Learning</span>,” <i>International Journal of Communication Systems</i> <span>39</span>, no. <span>7</span> (<span>2026</span>): e70476, https://doi.org/10.1002/dac.70476.</p><p>The above article, published online on 11 March 2026 in Wiley Online Library (wileyonlinelibrary.com) has been retracted by agreement between <i>International Journal of Communication Systems</i> and John Wiley & Sons Ltd. The retraction has been agreed following concerns raised by third parties regarding inconsistencies in the published article. An investigation conducted by the publisher determined that the version of the article ultimately published does not correspond to the version that underwent peer review and editorial assessment. Following the acceptance decision, substantially different content that had not been subject to peer review or editorial evaluation was incorporated into the article by the authors. As the published version did not undergo appropriate peer review and subsequent post-publication assessment did not support its publication, the article has been retracted. The authors disagree with the retraction decision and maintain that there was no deliberate intention to circumvent the peer review or editorial evaluation process.</p>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/dac.70615","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learning Optimized Slotted Patch Antenna With Modified Aperture for 5G mm-Wave Applications 5G毫米波应用中改进孔径的机器学习优化开槽贴片天线

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-22 DOI: 10.1002/dac.70611

Sonmati Verma, Rajiv Kumar Singh, Neelam Srivastava, Anirban Sarkar, Pinku Ranjan

{"title":"Machine Learning Optimized Slotted Patch Antenna With Modified Aperture for 5G mm-Wave Applications","authors":"Sonmati Verma, Rajiv Kumar Singh, Neelam Srivastava, Anirban Sarkar, Pinku Ranjan","doi":"10.1002/dac.70611","DOIUrl":"https://doi.org/10.1002/dac.70611","url":null,"abstract":"<div>\u0000 \u0000 <p>A compact slotted patch antenna intended for 5G mm-wave applications is presented in this article. The dimension of this antenna is 7 × 7 × 0.8 mm<sup>3</sup> and operates at a frequency of 28.5 GHz, and it is made of FR4 epoxy material. The measured and simulated bandwidths are 16.1% and 16.12%, respectively, with corresponding gains of 5.3 dBi. Compactness is achieved by introducing the slots in the radiating patch. The slots effectively modify current distribution and enable the antenna to resonate at the desired frequency while reducing its overall physical size. Incorporating a half-sinusoidal arc with varying slot amplitudes significantly enhances bandwidth, radiation efficiency, impedance matching, and polarization purity, making the antenna highly suitable for 5G mm-wave applications. Five machine learning regression algorithms, such as Gradient Boosting Regressor (GBR), Decision Tree (DT), Random Forest (RF), Extreme Gradient Boosting (XGB), and K-Nearest Neighbor (KNN), are employed to predict and optimize the return-loss (S11) signature of the antenna. A purpose-built dataset of 3864 samples, generated in HFSS by varying the slot length and width, is split into 80% training and 20% testing data. Model accuracy is reported as the coefficient of determination (<i>R</i><sup>2</sup>) on the held-out test set, together with MSE, MAE, and MAPE. The Extreme Gradient Boosting Regressor (XGB) provides the best performance, achieving the lowest MSE of 6.2288 and the highest <i>R</i><sup>2</sup> of 0.8077 (≈81%) among the five models. This work demonstrates the use of ML to accurately and efficiently optimize a 5G antenna for high-speed connectivity. The proposed antenna is suitable for V2X communication systems, automotive radar, IoT, and 5G mm-wave applications in the n257 and n261 bands.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Convex Optimization Strategies for Energy-Efficient Beamforming in Satellite Communications 卫星通信中高能效波束形成的凸优化策略

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-18 DOI: 10.1002/dac.70610

Madona B. Sahaai, K. Karthika, Priyadharshini S, Aaron Kevin Cameron Theoderaj

{"title":"Convex Optimization Strategies for Energy-Efficient Beamforming in Satellite Communications","authors":"Madona B. Sahaai, K. Karthika, Priyadharshini S, Aaron Kevin Cameron Theoderaj","doi":"10.1002/dac.70610","DOIUrl":"https://doi.org/10.1002/dac.70610","url":null,"abstract":"<div>\u0000 \u0000 <p>A trend in the design and development of beamforming has emerged as a critical issue in modern satellite communications, particularly with the emergence of low Earth orbit (LEO) satellite constellations. This paper presents a comprehensive system for energy-efficient beamforming optimization that uses convex optimization techniques such as semidefinite programming (SDP), successive convex approximation (SCA), and second-order cone programming (SOCP). The beamforming problem is formulated as a power minimization problem subject to quality-of-service (QoS) constraints, and efficient optimization algorithms are developed to obtain feasible beamforming solutions that converge reliably toward the optimal solution. The proposed rank-one optimization model addresses the non-convexity of the traditional beamforming issue by using tight semidefinite relaxation. The experimental results indicate that the proposed solution can provide 23.4% power savings relative to the traditional methods with the signal-to-interference-plus-noise ratio (SINR) specifications. In the case of LEO satellites with imperfect channel state information (CSI), the robust beamforming approach improves energy efficiency by 18.7%. The analysis of computational complexity demonstrates that the suggested SCA-based algorithm takes 2–10 iterations for the considered LEO satellite scenarios. Since each cycle solves a computationally efficient SOCP subproblem, the overall runtime is significantly less than that of the SDP formulation, making the proposed model appropriate for adaptive beamforming in practical satellite communication systems.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radial Basis Neural Network–Based Bayesian Fuzzy Clustering Fostered Object Tracking in Wireless Sensor Networks 基于径向基神经网络的贝叶斯模糊聚类促进无线传感器网络目标跟踪

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-16 DOI: 10.1002/dac.70563

T. Siva, A. Merline

{"title":"Radial Basis Neural Network–Based Bayesian Fuzzy Clustering Fostered Object Tracking in Wireless Sensor Networks","authors":"T. Siva, A. Merline","doi":"10.1002/dac.70563","DOIUrl":"https://doi.org/10.1002/dac.70563","url":null,"abstract":"<div>\u0000 \u0000 <p>Efficient object tracking in wireless sensor networks (WSNs) remains challenging due to high energy consumption, node failures, and tracking inaccuracies. This paper introduces a novel radial basis neural network–dependent Bayesian fuzzy clustering object tracking protocol (RBNN-BFC-OT-WSN) that uniquely integrates three innovations: (i) Bayesian fuzzy clustering for dynamic and probabilistic cluster head selection to achieve balanced energy usage; (ii) radial basis neural network for high-precision, real-time tracking of nonlinear target movements; (iii) marine predator algorithm for adaptive optimization of RBNN weight parameters, enhancing convergence speed and prediction accuracy. Unlike existing GA-LEACH-WSN, VA-PSO-WSN, and LBR-GSO-WSN models, this approach combines clustering intelligence with neural learning and metaheuristic optimization in a unified framework. Simulation results using MATLAB and NS-2 demonstrate that RBNN-BFC-OT-WSN achieves 12.6%–29.1% lower delay, 18.4%–32.8% less energy consumption, and 53.6%–68.2% higher delivery ratio than baselines, while maintaining robust performance under high mobility and dense node deployments. This integrated framework offers a scalable, energy-efficient, and accurate solution for WSN-based surveillance applications.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact UWB MIMO Antenna With Filter-Assisted Bandwidth Reconfiguration for WBAN-Enabled Medical IoT Applications 具有滤波器辅助带宽重构的紧凑型UWB MIMO天线，用于支持wban的医疗物联网应用

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-11 DOI: 10.1002/dac.70608

A. Bharathipriya, S. Ramesh

{"title":"Compact UWB MIMO Antenna With Filter-Assisted Bandwidth Reconfiguration for WBAN-Enabled Medical IoT Applications","authors":"A. Bharathipriya, S. Ramesh","doi":"10.1002/dac.70608","DOIUrl":"https://doi.org/10.1002/dac.70608","url":null,"abstract":"<div>\u0000 \u0000 <p>A four-element bandwidth-reconfigurable multiple-input multiple-output (MIMO) antenna is presented in this paper for Wireless Body Area Network (WBAN) and medical IoT (M-IoT) applications. The antenna element in the MIMO scheme utilizes an ultra-wideband (UWB) monopole, which is bandwidth reconfigured to work in wideband and narrowband modes. Bandwidth reconfiguration is achieved through feedline selection, where a low-pass filter (LPF) is integrated to the primary transmission line to control the excitation of the monopole antenna. The proposed antenna operates in two distinct modes, viz. direct mode for WBAN and filter mode for M-IoT. In the direct mode, the proposed antenna offers UWB operation from 3.1 to 11.8 GHz, corresponding to a fractional bandwidth (FBW) of 115%. In the filter mode, the monopole is excited through the LPF, which restricts the bandwidth to 3.1–5.4 GHz resulting in an FBW of 56%. The LPF is a defected microstrip structure with split square resonator that offers a cutoff frequency around 6 GHz. Each filter-integrated antenna element occupies a compact area of 0.17 <i>λ</i>₀ × 0.25 <i>λ</i>₀ (16 × 24 mm<sup>2</sup>), while the complete four-element MIMO configuration measures 0.47 <i>λ</i>₀ × 0.47 <i>λ</i>₀ (45 × 45 mm<sup>2</sup>). The proposed antenna achieves a peak gain above 4 dBi with efficiency close to 80%. The performance of the antenna in the presence of three-layer human body model is evaluated to validate the suitability for WBAN and M-IoT environments. The MIMO metrics are evaluated and the results show a low envelope correlation coefficient (<0.1), high diversity gain (>8 dB), and channel capacity loss below 0.35 bps/Hz, confirming reliable operation of the proposed antenna in on-body conditions.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zero-Trust-Aware Bandwidth Allocation and Slice Isolation in 6G Networks: A Dynamic Optimization Approach 6G网络中的零信任感知带宽分配和分片隔离：一种动态优化方法

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-09 DOI: 10.1002/dac.70607

Apostolos Tsiakalos, Anastasios Tsiakalos

{"title":"Zero-Trust-Aware Bandwidth Allocation and Slice Isolation in 6G Networks: A Dynamic Optimization Approach","authors":"Apostolos Tsiakalos, Anastasios Tsiakalos","doi":"10.1002/dac.70607","DOIUrl":"https://doi.org/10.1002/dac.70607","url":null,"abstract":"<div>\u0000 \u0000 <p>6G networks require autonomous, low-latency, and trustworthy resource management under dynamic service demands and evolving threats. Existing frameworks treat security as a static constraint, failing to adapt to real-time trust fluctuations and zero trust principles. We propose a zero-trust-aware framework for joint bandwidth allocation and slice isolation in 6G network slicing, integrating a dynamic trust evolution model, risk-aware policy enforcement, and model-agnostic explainability. The resource allocation problem is formulated as a constrained mixed-integer optimization that balances service utility, security risk, and isolation costs. A computationally efficient heuristic approximation is provided for real-time orchestration. Real-world intrusion patterns from the CSE-CIC-IDS2018 dataset map to slice behaviors to ensure realism. Simulations show that the framework improves resource utilization by up to 11% over static allocation and reduces SLA violations during security incidents by 22% compared to SLA-aware heuristics. Sensitivity analysis confirms stability under varying trust model and security weights, and the explainability module provides auditable reasoning, indicating suitability for future 6G environments.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SLNR-Based Private Precoding for RSMA Systems: Analysis and Performance Evaluation 基于slnr的RSMA系统私有预编码：分析与性能评估

IF 1.8 4区计算机科学

International Journal of Communication Systems Pub Date : 2026-09-08 DOI: 10.1002/dac.70606

Dmitriy Pokamestov, Artem Shinkevich, Yakov Kryukov, Georgiy Shalin, Sergey Zemlyanukhin, Alexander Filatov

{"title":"SLNR-Based Private Precoding for RSMA Systems: Analysis and Performance Evaluation","authors":"Dmitriy Pokamestov, Artem Shinkevich, Yakov Kryukov, Georgiy Shalin, Sergey Zemlyanukhin, Alexander Filatov","doi":"10.1002/dac.70606","DOIUrl":"https://doi.org/10.1002/dac.70606","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper investigates signal-to-leakage-and-noise ratio (SLNR) precoding for private streams in the downlink of a multiple-input single-output (MISO) rate-splitting multiple access (RSMA) system. The common stream is designed using a multistart gradient-ascent method, whereas the private precoders are obtained analytically using SLNR. For comparison, the analytical zero-forcing (ZF) method and the numerical iterative successive null-space (SNS) and weighted minimum mean-square error (WMMSE) methods are also considered for private-stream precoding. The study accounts for imperfect CSIT, spatial correlation, and different numbers of base-station antennas. Simulations are conducted under an equal-rate strategy for different SNR and correlation levels. The results indicate that SLNR outperforms ZF and SNS in the correlated channels considered and is more robust to CSI errors. Although SLNR performs slightly below WMMSE, it has substantially lower computational complexity. The results demonstrate that SLNR is a practical, low-complexity solution for private-stream precoding in next-generation RSMA systems, including 6G scenarios.</p>\u0000 </div>","PeriodicalId":13946,"journal":{"name":"International Journal of Communication Systems","volume":"39 16","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0