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A Novel Framework for Few-Shot RF Fingerprint Identification Using Signal Recurrence Plot and Convolutional Broad Learning Network 基于信号递归图和卷积广义学习网络的射频指纹识别框架
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-10 DOI: 10.1109/LCOMM.2025.3588073
Hui Liu;Dongxing Zhao;Yupeng Chen
{"title":"A Novel Framework for Few-Shot RF Fingerprint Identification Using Signal Recurrence Plot and Convolutional Broad Learning Network","authors":"Hui Liu;Dongxing Zhao;Yupeng Chen","doi":"10.1109/LCOMM.2025.3588073","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3588073","url":null,"abstract":"Radio frequency fingerprint identification (RFFI) is critical for securing Internet of Things (IoT) devices and wireless communication systems. However, existing deep learning approaches often suffer a sharp degradation in accuracy when labeled data is limited. To address this issue, this letter introduces a novel RFFI method, SRP-CBL, which combines signal recurrence plots and convolutional broad learning. It converts RF time series into recurrence plots and applies convolution operations for feature extraction within the broad learning framework. By leveraging sparse connectivity and weight sharing, the model reduces complexity and improves generalization in low-label regimes. Experiments on a public dataset demonstrate that SRP-CBL consistently outperforms state-of-the-art methods in accuracy under limited training data. The dataset can be downloaded from <uri>https://cores.ee.ucla.edu/downloads/datasets/wisig/</uri>","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2128-2132"},"PeriodicalIF":4.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
PSC: A Packet Semantic Communication Framework for Lossy Transmission With Packet Loss Channel 具有丢包信道的有损传输的包语义通信框架
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-10 DOI: 10.1109/LCOMM.2025.3587319
Wenyu Zhang;Zhiwei Xie;Sherali Zeadally;Kaiyuan Bai;Hua Shao;Haijun Zhang;Victor C. M. Leung
{"title":"PSC: A Packet Semantic Communication Framework for Lossy Transmission With Packet Loss Channel","authors":"Wenyu Zhang;Zhiwei Xie;Sherali Zeadally;Kaiyuan Bai;Hua Shao;Haijun Zhang;Victor C. M. Leung","doi":"10.1109/LCOMM.2025.3587319","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3587319","url":null,"abstract":"Currently, semantic communication is predominantly confined to wireless communication scenarios, but not the general scenarios that transmit data packets. We propose packet semantic communication (PSC), a new semantic communication framework which achieves reliable transmissions in networks with packet loss. PSC works at the application layer, and it encodes the source data as binary data bits by using deep joint source-channel coding (DeepJSCC) and entropy coding, then transmits data as packets, and the decoder at the receiver performs the decoding process even when the packets are partially lost. We implement the proposed PSC for image transmission with a packet loss channel and compare its performance with the conventional better portable graphics (BPG) codec and learned image compression (LIC) model. The results obtained show that BPG and LIC are highly vulnerable to packet loss, but the proposed PSC can achieve strong robustness against packet loss, even when the packet loss rate (PLR) is as high as 80%.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2113-2117"},"PeriodicalIF":4.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Near-Field Beamforming Design for Multi-IRS Wireless Beam Routing 多irs无线波束路由的近场波束形成设计
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-07 DOI: 10.1109/LCOMM.2025.3586435
Tao Wang;Changsheng You;Changchuan Yin
{"title":"Near-Field Beamforming Design for Multi-IRS Wireless Beam Routing","authors":"Tao Wang;Changsheng You;Changchuan Yin","doi":"10.1109/LCOMM.2025.3586435","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3586435","url":null,"abstract":"This letter investigates efficient near-field beamforming designs for wireless communication systems aided by multiple extremely large-scale intelligent reflecting surfaces (Multi-XL-IRSs). Previous studies have mostly assumed far-field channel conditions, based on which angle-based beamforming is adopted for the base station (BS) and IRSs. However, this approach may lead to degraded performance in practical near-field scenarios. To address this issue, we consider near-field channel modeling and formulate an optimization problem aimed at maximizing the received power at the user equipment (UE) by jointly optimizing the beamforming at the BS and IRSs. Given the intractability under the beam training (BT)-based communication framework, the problem is revisited and reformulated. Subsequently, an efficient algorithm based on alternating optimization (AO) is proposed to solve the reformulated problem. Numerical results demonstrate that, in typical setups, our AO-based beamforming designs provide over 170% and 20% received power gains over conventional angle-based beamforming and beam focusing, respectively. Furthermore, the power scaling law derived under far-field conditions no longer holds in near-field scenarios.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2088-2092"},"PeriodicalIF":4.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Enhanced Adaptive Second-Order Grid Refinement Channel Estimation for OTFS Systems 增强自适应二阶网格细化OTFS系统信道估计
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-07 DOI: 10.1109/LCOMM.2025.3586688
Peng Liu;Meng Tang;Hao Wang
{"title":"Enhanced Adaptive Second-Order Grid Refinement Channel Estimation for OTFS Systems","authors":"Peng Liu;Meng Tang;Hao Wang","doi":"10.1109/LCOMM.2025.3586688","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3586688","url":null,"abstract":"In orthogonal time frequency space (OTFS) modulation, the virtual grid in the delay-Doppler (DD) domain is critical for estimating fractional channel. However, the resolution of the DD grid influences both algorithmic complexity and channel estimation (CE) performance. This letter proposes an adaptive second-order grid refinement (ASGR) scheme, which effectively balances computational efficiency and CE precision. To accurately estimate the doubly fractional channel in the OTFS system, a second-order Taylor expansion is used to approximate the measurement matrix. A fast Bayesian compressive sensing (FBCS) is then employed for preliminary hyperparameter estimation to reduce computational load. Subsequently, the pivotal parameters on the grid are adaptively adjusted, and the evolved points are inserted into the original grid to achieve local refinement. Simulation results show that the proposed ASGR achieves a performance gain of 4-6 dB over the off-grid FBCS.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2093-2097"},"PeriodicalIF":4.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Synaptic Intelligence-Based Beam Selection in Dynamic Environments 动态环境下基于突触智能的波束选择
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-07 DOI: 10.1109/LCOMM.2025.3586843
Yunwei Gou;Yawen Chen;Yifan Zhu;Wan Xiang;Zhaoming Lu;Xiangming Wen
{"title":"Synaptic Intelligence-Based Beam Selection in Dynamic Environments","authors":"Yunwei Gou;Yawen Chen;Yifan Zhu;Wan Xiang;Zhaoming Lu;Xiangming Wen","doi":"10.1109/LCOMM.2025.3586843","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3586843","url":null,"abstract":"In real-world vehicular communications, machine learning-based beam selection is challenging under non-stationary distributions of Non-Line of Sight (NLOS) and Line of Sight (LOS) cases. For example, a model newly updated on rush-hour traffic hardly re-adapts to previously encountered regular traffic. To address this, the letter proposes a continual learning approach, named Synaptic Intelligence-based Beam Selection (SIBS), which retains historical knowledge by restricting the change to key parameters during the new training. The experiments on simulated datasets show strong adaptability of SIBS to dynamic environments, where it adapts to the new scenario and notably maintains performance over the encountered scenario.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2103-2107"},"PeriodicalIF":4.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Performance Analysis of Data Detection in the THz-Band Under Channel-Correlated Noise 信道相关噪声下太赫兹波段数据检测性能分析
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-07 DOI: 10.1109/LCOMM.2025.3586773
Almutasem Bellah Enad;Hadi Sarieddeen;Jihad Fahs;Hakim Jemaa;Tareq Y. Al-Naffouri
{"title":"Performance Analysis of Data Detection in the THz-Band Under Channel-Correlated Noise","authors":"Almutasem Bellah Enad;Hadi Sarieddeen;Jihad Fahs;Hakim Jemaa;Tareq Y. Al-Naffouri","doi":"10.1109/LCOMM.2025.3586773","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3586773","url":null,"abstract":"We present a comprehensive symbol error rate (SER) analysis framework for link-level terahertz (THz)-band communication systems under linear zero-forcing (ZF) data detection. First, we derive the mismatched SER for indoor THz systems under independent channel and noise assumptions, calculating the probability density function of the ratio of Gaussian noise to <inline-formula> <tex-math>$alpha $ </tex-math></inline-formula>-<inline-formula> <tex-math>$mu $ </tex-math></inline-formula> channels resulting from ZF filtering. Next, we derive the precise SER under correlated channel and noise conditions, modeling dependencies using the copula method. Finally, we evaluate the SER for THz channels with correlated distortion noise from hardware impairments. Simulations demonstrate that the proposed framework corrects for multi-dB SERs resulting from the channel-noise independence assumption.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2098-2102"},"PeriodicalIF":4.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Channel Aging Effects in SIM-Enhanced Cell-Free Massive MIMO System for HST Communications HST通信中sim增强无小区大规模MIMO系统的信道老化效应
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-04 DOI: 10.1109/LCOMM.2025.3585895
Qingfeng Ding;Huifan Peng;Xinquan Dai;Liqin Wan
{"title":"Channel Aging Effects in SIM-Enhanced Cell-Free Massive MIMO System for HST Communications","authors":"Qingfeng Ding;Huifan Peng;Xinquan Dai;Liqin Wan","doi":"10.1109/LCOMM.2025.3585895","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3585895","url":null,"abstract":"Stacked intelligent metasurface (SIM) technology, enabling dynamic wavefront manipulation of electromagnetic propagation environments, has been integrated into cell-free massive MIMO (mMIMO) systems to augment access point capabilities. In this letter, we investigate the impact of channel aging induced by the high-speed motion of trains on SIM-enhanced cell-free mMIMO systems. We derive closed-form expressions for achievable spectral efficiency (SE) in both uplink and downlink transmissions under imperfect channel state information with channel aging effects, and further optimizes uplink sum SE through a novel implementation of weighted minimum mean square error-based power allocation scheme along with a scalable group-based SIM beamforming algorithm. Simulation results demonstrate that SIM-enhanced cell-free mMIMO can reduce the degradation of system performance caused by channel aging compared to traditional cell-free mMIMO systems especially in strong line-of-sight environments.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2083-2087"},"PeriodicalIF":4.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Evolution of Partial Arc Sampling Receiving Theory for Orbital Angular Momentum-Based Communications 基于轨道角动量的通信中部分弧采样接收理论的发展
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-04 DOI: 10.1109/LCOMM.2025.3585787
Yuqi Chen;Xiaowen Xiong;Shilie Zheng;Zelin Zhu;Bingchen Pan;Bincai Wu;Xiaonan Hui;Xianbin Yu;Xianmin Zhang
{"title":"Evolution of Partial Arc Sampling Receiving Theory for Orbital Angular Momentum-Based Communications","authors":"Yuqi Chen;Xiaowen Xiong;Shilie Zheng;Zelin Zhu;Bingchen Pan;Bincai Wu;Xiaonan Hui;Xianbin Yu;Xianmin Zhang","doi":"10.1109/LCOMM.2025.3585787","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3585787","url":null,"abstract":"In this letter, we propose a general partial arc orthogonal receiving (GPAOR) theory based on the electromagnetic information theory for orbital angular momentum (OAM) orthogonal communication systems. Firstly, the concept of orthogonal receiving for multi-mode OAM set is defined based on antennas’ effective degree of freedom (EDoF). Subsequently, the necessary and sufficient conditions for maintaining the orthogonality between OAM modes using partial arc sampling method are derived. This work completes the existing OAM partial arc sampling receiving (PASR) theory, and the proposed orthogonal receiving condition is valid for both continuous and discrete spatial sampling receiving.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2073-2077"},"PeriodicalIF":4.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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-Level Similarity for Efficient Compression in Graph-Based Multi-Modal Semantic Communication 基于图的多模态语义通信中高效压缩的多级相似度
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-04 DOI: 10.1109/LCOMM.2025.3585892
Chenlin Xing;Jie Lv;Tao Luo;Zhilong Zhang
{"title":"Multi-Level Similarity for Efficient Compression in Graph-Based Multi-Modal Semantic Communication","authors":"Chenlin Xing;Jie Lv;Tao Luo;Zhilong Zhang","doi":"10.1109/LCOMM.2025.3585892","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3585892","url":null,"abstract":"Efficient and accurate multi-modal data transmission remains a key challenge in semantic communications. Existing research has overlooked the multi-level semantic similarity inherent in multi-modal data. Motivated by this, a graph-based multi-modal semantic communication system (GMSC) is proposed. In GMSC, triplets fully correlate intra-modal and cross-modal semantic similarities, enabling the integrated extraction of redundant semantic information. A task-oriented compression threshold method is designed to remove redundant transmission information and enhance efficiency. Simulation results demonstrate that GMSC achieves a 7% improvement in task accuracy at the same compression threshold and significantly improves transmission efficiency under the same task accuracy.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2078-2082"},"PeriodicalIF":4.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Efficient ADMM Decoder for Binary LDPC Codes in Low-Iteration Regime 低迭代条件下二进制LDPC码的高效ADMM解码器
IF 4.4 3区 计算机科学
IEEE Communications Letters Pub Date : 2025-07-02 DOI: 10.1109/LCOMM.2025.3585192
Yuxin Cheng;Yujie Ma;Qinglin Zhang;Qiaoqiao Xia
{"title":"Efficient ADMM Decoder for Binary LDPC Codes in Low-Iteration Regime","authors":"Yuxin Cheng;Yujie Ma;Qinglin Zhang;Qiaoqiao Xia","doi":"10.1109/LCOMM.2025.3585192","DOIUrl":"https://doi.org/10.1109/LCOMM.2025.3585192","url":null,"abstract":"The alternating direction method of multipliers (ADMM) algorithm for decoding low-density parity-check (LDPC) codes has attracted significant attention because of its superior performance. The convergence characteristic has been regarded as a crucial element to enhance its advantage in practice. In this letter, an efficient ADMM decoder for binary LDPC codes is proposed by adjusting the position of the Euclidean projection to enhance the convergence behavior. The simulation results show that the proposed algorithm can improve the FER performance by 1.1dB as well as save average decoding iterations by 13% compared with the existing CSA when the maximum number of iterations is set to 20. The proposed algorithm can be suitable for use at low-iteration regime in high-throughput scenarios.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 9","pages":"2063-2067"},"PeriodicalIF":4.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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