IEEE Transactions on Wireless Communications最新文献_第5页

Joint Computation-Communication Design in Segmented Pinching Antenna System (PASS) 分段掐位天线系统（PASS）的联合计算-通信设计

IF 10.4 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-10-06 DOI: 10.1109/twc.2026.3740713

Deqiao Gan, Xiaoxia Xu, Xiaohu Ge, Yuanwei Liu

引用次数: 0

Communication in a Fractional World: MIMO MC-OTFS Precoder Prediction 分数世界中的通信：MIMO MC-OTFS预编码器预测

IF 10.4 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-09-28 DOI: 10.1109/twc.2026.3737933

Evan Allen, Karim Said, Robert Calderbank, Lingjia Liu

引用次数: 0

A Novel Near-Field Dictionary Design for Hybrid MIMO with Uniform Planar Arrays 一种基于均匀平面阵列的混合MIMO近场字典设计

IF 10.4 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-09-25 DOI: 10.1109/twc.2026.3737524

Luca Antonelli, Antonio A. D'Amico, Luca Sanguinetti

引用次数: 0

GraphSpecRC: A Graph-based Recurrent Learning Approach for Real-Time Spectrum Prediction graphspecc：一种基于图的循环学习方法，用于实时频谱预测

IF 10.4 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-07-30 DOI: 10.1109/twc.2026.3716605

Shadab Mahboob, Nima Mohammadi, Lingjia Liu

引用次数: 0

Breaking the Diagonal Mold: Full-Scattering Matrix Control in BD-RIS for Securing Satellite RSMA 打破对角线模式：BD-RIS中确保卫星RSMA的全散射矩阵控制

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-13 DOI: 10.1109/TWC.2026.3671685

Mengzhao Guo;Zhi Lin;Ruiqian Ma;Kang An;Chen Han;Yifu Sun;Yuanzhi He;Jiangzhou Wang

{"title":"Breaking the Diagonal Mold: Full-Scattering Matrix Control in BD-RIS for Securing Satellite RSMA","authors":"Mengzhao Guo;Zhi Lin;Ruiqian Ma;Kang An;Chen Han;Yifu Sun;Yuanzhi He;Jiangzhou Wang","doi":"10.1109/TWC.2026.3671685","DOIUrl":"https://doi.org/10.1109/TWC.2026.3671685","url":null,"abstract":"Satellite communications (SatCom) face fundamental security challenges due to their inherent broadcast nature. To address this, we exploit beyond-diagonal reconfigurable intelligent surface (BD-RIS) to unleash its full-scattering matrix control for enhanced secure beamforming flexibility in SatCom with rate-splitting multiple access (RSMA), where the satellite attempts to convey private signals to legitimate users with blocked direct downlinks and multiple eavesdroppers. To maximize the worst-case secrecy rate among legitimate users, a max-min fairness (MMF) problem is formulated with imperfect wiretap channel state information (CSI) via joint precoding, RIS configuration, and rate splitting optimization. By using the block coordinate descent (BCD) method, these optimization variables are decoupled with different subproblems and solved by the penalty dual decomposition (PDD) method iteratively. Furthermore, we develop a computationally efficient suboptimal solution that employs diagonal RIS (D-RIS) with reduced hardware and computational complexity, where alternating optimization (AO) and successive convex approximation (SCA) methods are employed to solve the non-convex problem. Simulation results demonstrate that our proposed BD-RIS-RSMA scheme achieves significant performance improvements compared to baseline schemes, while the suboptimal diagonal RIS scheme offers a favorable performance-complexity tradeoff.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13575-13589"},"PeriodicalIF":10.7,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Adaptive Interference Management for Enhancing RIS-Assisted NOMA Systems Through Satellite–Terrestrial Links 通过星-地链路增强ris辅助NOMA系统的自适应干扰管理

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-12 DOI: 10.1109/TWC.2026.3671050

Muhammad I. Khalil;Ke Wang;Jinho Choi

{"title":"Adaptive Interference Management for Enhancing RIS-Assisted NOMA Systems Through Satellite–Terrestrial Links","authors":"Muhammad I. Khalil;Ke Wang;Jinho Choi","doi":"10.1109/TWC.2026.3671050","DOIUrl":"10.1109/TWC.2026.3671050","url":null,"abstract":"This paper proposes an elevation-aware interference management framework for reconfigurable intelligent surface (RIS)-assisted downlink non-orthogonal multiple access (NOMA) in integrated low Earth orbit (LEO) satellite–terrestrial networks. In this setting, the strength of satellite interference varies strongly with the elevation angle due to path loss and shadowing. We model this effect via an elevation-dependent weighting factor <inline-formula> <tex-math>$alpha (theta)$ </tex-math></inline-formula>, expressed as a sigmoid function and updated in real time by a lightweight proportional–integral (PI) controller driven by a scalar performance metric. The resulting <inline-formula> <tex-math>$alpha (theta)$ </tex-math></inline-formula> enables an adaptive successive interference cancellation (SIC) strategy that prioritizes decoding of satellite or terrestrial components according to the instantaneous interference level and omits satellite decoding when its contribution is weak, thereby reducing unnecessary SIC stages. In parallel, a three-mode RIS codebook (terrestrial-priority, balanced, satellite-priority) is selected based on <inline-formula> <tex-math>$alpha (theta)$ </tex-math></inline-formula> and refined online using low-complexity gradient-based phase updates. Simulations under 3GPP-compliant parameters show that the proposed scheme achieves up to 20% higher throughput than a conventional static RIS–NOMA baseline with non-adaptive RIS phases and a fixed channel-gain-based SIC order that does not exploit the elevation-dependent interference weight <inline-formula> <tex-math>$alpha (theta)$ </tex-math></inline-formula>, while maintaining robust performance across a wide range of elevation angles. These results highlight the benefits of combining elevation-aware RIS control, adaptive SIC ordering, and low-overhead online RIS refinement in next-generation satellite–terrestrial NOMA networks.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13447-13462"},"PeriodicalIF":10.7,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147439701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Free-Space Optical Communication With Optical Intelligent Reflecting Surfaces Under Phase Errors 相位误差下具有光学智能反射面的自由空间光通信

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-12 DOI: 10.1109/TWC.2026.3671589

Emna Zedini

{"title":"Free-Space Optical Communication With Optical Intelligent Reflecting Surfaces Under Phase Errors","authors":"Emna Zedini","doi":"10.1109/TWC.2026.3671589","DOIUrl":"10.1109/TWC.2026.3671589","url":null,"abstract":"Free-space optical (FSO) communication systems enhanced with optical intelligent reflecting surfaces (OIRS) offer promising solutions to overcome line-of-sight limitations and mitigate atmospheric turbulence effects. This paper presents a comprehensive analysis of OIRS-assisted FSO systems with phase errors utilizing both heterodyne and intensity modulation with direct detection (IM/DD) methods, which provides a more tractable alternative to existing methods. We first derive exact closed-form formulas for the mean and variance of the squared sum of products of independent, identically distributed Gamma-Gamma random variables, incorporating both pointing errors and IRS phase errors. Based on these results, we approximate the square envelope of the OIRS-assisted FSO channel with a Gamma distribution, with shape and scale terms determined from the derived mean and variance. This approximation allows us to obtain closed-form expressions for key performance metrics, including the average bit-error rate for different modulations, the outage probability, and the ergodic capacity, expressed using the Meijer’s G function. Our approach demonstrates excellent agreement with Monte Carlo simulations while offering superior computational efficiency compared to methods based on multivariate Fox’s H functions. Furthermore, we conduct asymptotic analysis at high signal-to-noise ratios and investigate the system’s diversity order for both heterodyne and IM/DD techniques.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13479-13493"},"PeriodicalIF":10.7,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147439703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Environment-Aware Channel Measurement and Modeling for Terahertz Monostatic Sensing 环境感知的太赫兹单站传感信道测量与建模

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-12 DOI: 10.1109/TWC.2026.3671384

Yejian Lyu;Zhiqiang Yuan;Henk Wymeersch;Chong Han

{"title":"Environment-Aware Channel Measurement and Modeling for Terahertz Monostatic Sensing","authors":"Yejian Lyu;Zhiqiang Yuan;Henk Wymeersch;Chong Han","doi":"10.1109/TWC.2026.3671384","DOIUrl":"10.1109/TWC.2026.3671384","url":null,"abstract":"Integrated sensing and communication (ISAC) at terahertz (THz) frequencies holds significant promise for unifying ultra-high-speed wireless connectivity with fine-grained environmental awareness. Realistic and interpretable channel modeling is essential to fully realize the potential of such systems. This work presents a comprehensive investigation of monostatic sensing channels at 300 GHz, based on an extensive measurement campaign conducted at 57 co-located transceiver (TRx) positions across three representative indoor scenarios. Multipath component (MPC) parameters, including amplitude, delay, and angle, are extracted using a high-resolution space-alternating generalized expectation-maximization (SAGE) algorithm. To cluster the extracted MPCs, an image-processing-based clustering method, i.e., connected component labeling (CCL), is applied to group MPCs based on delay-angle consistency. Based on the measurement data, an environment-aware channel modeling framework is proposed to establish mappings between physical scenario attributes (e.g., reflector geometry, surface materials, and roughness) and their corresponding channel-domain manifestations. The framework incorporates both specular and diffuse reflections and leverages several channel parameters, e.g., reflection loss, Lambertian scattering, and intra-cluster dispersion models, to characterize reflection behavior. Experimental results demonstrate that the proposed approach can reliably extract physical characteristics, e.g., structural and material information, from the observed channel characteristics, offering a promising foundation for advanced THz ISAC channel modeling.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13369-13383"},"PeriodicalIF":10.7,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147439704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Multi-IRS-Aided ISAC System: Multi-Path Exploitation Versus Reduction 多irs辅助ISAC系统：多路径开发与减少

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-12 DOI: 10.1109/TWC.2026.3671292

Guangji Chen;Qingqing Wu;Shihang Lu;Meng Hua;Wen Chen

{"title":"Multi-IRS-Aided ISAC System: Multi-Path Exploitation Versus Reduction","authors":"Guangji Chen;Qingqing Wu;Shihang Lu;Meng Hua;Wen Chen","doi":"10.1109/TWC.2026.3671292","DOIUrl":"10.1109/TWC.2026.3671292","url":null,"abstract":"This paper investigates a multi-intelligent reflecting surface (IRS) aided integrated sensing and communication (ISAC) system, where multiple IRSs are strategically deployed not only to assist the communication from a multi-antenna base station (BS) to a multi-antenna communication user (CU), but also enable the sensing service for a point target in the non-line-of-sight (NLoS) region of the BS. First, we propose a hybrid multi-IRS architecture, which consists of several passive IRSs and one semi-passive IRS equipped with both active sensors and reflecting elements. To be specific, the active sensors are exploited to receive the echo signals for estimating the target’s angle information, and the multiple reflecting paths provided by multi-IRS are employed to improve the degree of freedoms (DoFs) of communication. Under the given budget on the number of total IRSs elements, we theoretically show that increasing the number of deployed IRSs is beneficial for improving DoFs of spatial multiplexing for communication while increasing the Crámer-Rao bound (CRB) of target estimation, which unveils a fundamental tradeoff between the sensing and communication performance. To characterize the rate-CRB tradeoff, we study a rate maximization problem, by optimizing the BS transmit covariance matrix, IRSs phase-shifts, and the number of deployed IRSs, subject to a maximum CRB constraint. Analytical results reveal that the communication-oriented design becomes optimal when the total number of IRSs elements exceeds a certain threshold, wherein the relationships of the rate and CRB with the number of IRS elements/sensors, transmit power, and the number of deployed IRSs are theoretically derived and demystified. Simulation results validate our theoretical findings and also demonstrate the superiority of our proposed designs over the benchmark schemes.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13351-13368"},"PeriodicalIF":10.7,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147439696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

STAR-RIS-Assisted Heterogeneous Cooperative ISAC Mechanism in the Finite Blocklength Regime 有限块长状态下star - ris辅助异构协同ISAC机制

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-12 DOI: 10.1109/TWC.2026.3670240

Xiaohui Li;Qi Zhu;Yunpei Chen;Chadi Assi;Yifei Yuan

{"title":"STAR-RIS-Assisted Heterogeneous Cooperative ISAC Mechanism in the Finite Blocklength Regime","authors":"Xiaohui Li;Qi Zhu;Yunpei Chen;Chadi Assi;Yifei Yuan","doi":"10.1109/TWC.2026.3670240","DOIUrl":"10.1109/TWC.2026.3670240","url":null,"abstract":"The multi-base-station cooperative (MBC) ISAC mechanism is promising to satisfy the higher-quality sensing requirements of accuracy and coverage in 6G. STAR-RIS can help ISAC BSs provide cooperative sensing and communication (S&C) across full-space radio signal coverage. Short-packet transmission (SPT) is expected to be performed by ISAC BSs in 6G vertical applications to provide enhanced ultra-reliable low-latency S&C services. This paper proposes a STAR-RIS-assisted heterogeneous (SRH) MBC ISAC mechanism within the finite blocklength (FBL) regime. Multiple ISAC BSs and a communication-only (Comm-only) BS collaborate to provide S&C services to users and the target using STAR-RISs and cooperative detection results. A composite SPT (C-SPT) time frame structure is proposed by dynamically designing the S&C block lengths from the perspectives of the sub-frame and the entire transmission block. The systemic sum achievable capacity (SAC) over the entire transmission block is maximized by jointly optimizing the pilot and data block lengths and powers, as well as the active and passive beamforming of ISAC BSs and STAR-RISs under constraints of temporal, spatial, and power resources. The non-convex optimization problem is solved by combining the methods of alternating optimization (AO), quadratic transform (QT), sequential rotation (SR), and particle swarm optimization (PSO). Simulation results demonstrate the superiority of the proposed SRH-MBC ISAC mechanism with the C-SPT frame structure in achieving higher systemic communication performance with the assistance of STAR-RIS.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13528-13542"},"PeriodicalIF":10.7,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147439699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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