IEEE Open Journal of the Communications Society最新文献_第10页

IRS-Assisted FSO System for LEO Satellites Constellations 用于低轨道卫星星座的irs辅助FSO系统

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2025-12-24 DOI: 10.1109/OJCOMS.2025.3648156

Celia Sánchez-de-Miguel;Miguel Castillo-Vázquez;Thiago R. Raddo;Beatriz Soret;Antonio Jurado-Navas

{"title":"IRS-Assisted FSO System for LEO Satellites Constellations","authors":"Celia Sánchez-de-Miguel;Miguel Castillo-Vázquez;Thiago R. Raddo;Beatriz Soret;Antonio Jurado-Navas","doi":"10.1109/OJCOMS.2025.3648156","DOIUrl":"https://doi.org/10.1109/OJCOMS.2025.3648156","url":null,"abstract":"In this work, we explore the use of intelligent reflecting surfaces (IRSs) as transparent relays in free-space optical (FSO) links for low earth orbit (LEO) satellites constellations. We introduce a novel IRS design featuring a slightly convex surface geometry to broaden the reflected beam, thereby mitigating the beam alignment challenges typically encountered in satellite-based FSO systems. We investigate the impact of IRS size, curvature, and transmitter beam width on end-to-end system performance, taking into account attenuation, atmospheric turbulence, and pointing errors. To accommodate the effects of surface curvature, we enhance and refine the channel pointing model and derive novel closed-form expressions for key performance metrics, including bit error rate, outage probability, and ergodic capacity. Numerical results based on realistic system parameters confirm the effectiveness of the proposed approach, albeit at the cost of increased geometric channel losses. Finally, we carry out numerical simulations to validate the new channel model and derived closed-form expressions, providing valuable insights for the design of future non-terrestrial networks architectures based on FSO systems.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"315-327"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11313870","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148490775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tree Search Algorithms Applied to the BD-RIS Configuration in MU-MISO Communication Systems 树搜索算法在MU-MISO通信系统BD-RIS配置中的应用

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-08-28 DOI: 10.1109/OJCOMS.2026.3727854

Pedro H. C. De Souza;Luciano Leonel Mendes

{"title":"Tree Search Algorithms Applied to the BD-RIS Configuration in MU-MISO Communication Systems","authors":"Pedro H. C. De Souza;Luciano Leonel Mendes","doi":"10.1109/OJCOMS.2026.3727854","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3727854","url":null,"abstract":"The reconfigurable intelligent surface (RIS) has attracted considerable attention from both academia and industry in recent years, given its capacity to dynamically manipulate the reflection of incident electromagnetic waves. Although the research developed for the RIS may have reached its maturity, there are still contentious aspects and limitations regarding its potential benefits for the next generation of wireless communications. In order to improve upon the RIS technology, the beyond diagonal reconfigurable intelligent surface (BD-RIS) was recently proposed as a promising alternative. The BD-RIS boasts a more sophisticated circuit topology that is capable of providing more combinations of different adjustments or configurations for signal reflection. However, to aptly reap the benefits of the BD-RIS, the added degrees-offreedom of its configuration must be leveraged accordingly. Therefore, in this work we propose a depth-first tree search algorithm for configuring the BD-RIS in multi-user multiple-input single-output (MU-MISO) communication systems. Taking advantage of the tree search exploration, the proposed algorithm achieves a remarkable trade-off between channel strength maximization performance and computational complexity scalability.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"10614-10625"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11668896","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148925985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Joint CFO Estimation and Symbol Detection for Embedded Pilot in MIMO-OFDM MIMO-OFDM中嵌入式导频的联合CFO估计与符号检测

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-08-12 DOI: 10.1109/OJCOMS.2026.3722989

Kabiru Nasiru Aliyu;Karim Abed-Meraim;Azzedine Zerguine;Abdulmajid Lawal

引用次数: 0

Fluid Antennas Empowered RIS-Aided Integrated Sensing and Communication Systems 流体天线增强ris辅助集成传感和通信系统

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-08-06 DOI: 10.1109/OJCOMS.2026.3720769

Zhijie Lyu;Ye Wang;Rui Wang;Yi Gong

{"title":"Fluid Antennas Empowered RIS-Aided Integrated Sensing and Communication Systems","authors":"Zhijie Lyu;Ye Wang;Rui Wang;Yi Gong","doi":"10.1109/OJCOMS.2026.3720769","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3720769","url":null,"abstract":"Fluid antennas (FAs) represent a key enabling technology for the evolution of next-generation wireless networks. In this paper, we propose an FA-empowered integrated sensing and communication (ISAC) system in which a reconfigurable intelligent surface (RIS) is employed to mitigate performance degradation in communication and sensing caused by blockages of line-of-sight links. We consider a joint optimization of transmit beamforming matrices, RIS coefficients, and transmit antenna positions to maximize the sum rate subject to power budget, RIS, and antenna spacing constraints, as well as flexible regions. Due to the non-convexity and complexity of the objective, the alternative algorithm-based framework is used to iteratively solve the original optimization problem, in which the problem is decomposed into several subproblems using the fractional programming algorithm. Specifically, the subproblems regarding precoding, RIS phase shifts, and antenna positions are efficiently solved using semidefinite relaxation, Riemannian steepest-descent, and majorization minimization algorithms, respectively. Simulation results demonstrate the efficiency and superiority of the proposed framework over the conventional RIS-aided fixed-position antenna ISAC system.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"10002-10011"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11643801","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Channel Estimation and Relay Selection for Space–Air–Ground–Sea Integrated Networks 天-空-地-海一体化网络的信道估计和中继选择

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-08-07 DOI: 10.1109/OJCOMS.2026.3721772

Waruni Bandara;Omar Maraqa;Ahmed A. Al-Habob;Quang Nhat Le;Octavia A. Dobre;Trung Q. Duong

{"title":"Channel Estimation and Relay Selection for Space–Air–Ground–Sea Integrated Networks","authors":"Waruni Bandara;Omar Maraqa;Ahmed A. Al-Habob;Quang Nhat Le;Octavia A. Dobre;Trung Q. Duong","doi":"10.1109/OJCOMS.2026.3721772","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3721772","url":null,"abstract":"Reliable communication over oceans and in remote areas remains challenging because most wireless networks depend on land-based infrastructure. Space–air–ground–sea integrated networks (SAGSINs) provide a promising solution by integrating space, aerial, terrestrial, and maritime network components to extend coverage beyond the reach of land-based networks. In this paper, we consider a maritime relay-assisted SAGSIN where a sea-surface station (SS) communicates with a base station (BS) through one relay selected from three candidate platforms: an onshore station, a high-altitude platform, and a satellite (SAT). Since these relay links operate in different propagation environments and network segments, accurate channel estimation and relay selection become challenging. The proposed framework considers least squares (LS), linear minimum mean square error (LMMSE), and an adapted denoising convolutional neural network (DnCNN)-based estimator for channel estimation over heterogeneous maritime relay links. The DnCNN-based estimator learns the nonlinear mapping between the initial channel estimate and the corresponding refined channel estimate, thereby reducing estimation errors caused by noise and limited pilot observations. The refined channel estimates are then used to support relay selection, so that the SS can choose a suitable relay for forwarding its data to the BS. The simulation results confirm that the adapted DnCNN-based estimator generally provides lower normalized mean square error than the traditional LS and LMMSE estimators, especially at low transmit power and short pilot length. The results further show that the proposed relay selection method achieves an end-to-end data rate close to the perfect channel state information benchmark. These results confirm that accurate channel estimation improves relay selection and enhances maritime communication performance.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"9816-9830"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11644694","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

6G Privacy-Preserving Proximity Services: Zero-Trust Multi-Stakeholder Access With Attribute-Based Credentials Over PC5 6G隐私保护接近服务：基于PC5的基于属性凭证的零信任多利益相关方访问

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-07-30 DOI: 10.1109/OJCOMS.2026.3718743

Rodrigo Asensio-Garriga;Jesús García-Rodríguez;Gonzalo Alarcón Hellín;Antonio Skarmeta;Ramón Sánchez-Iborra

{"title":"6G Privacy-Preserving Proximity Services: Zero-Trust Multi-Stakeholder Access With Attribute-Based Credentials Over PC5","authors":"Rodrigo Asensio-Garriga;Jesús García-Rodríguez;Gonzalo Alarcón Hellín;Antonio Skarmeta;Ramón Sánchez-Iborra","doi":"10.1109/OJCOMS.2026.3718743","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3718743","url":null,"abstract":"The evolution toward 6G introduces a multi-stakeholder ecosystem in which diverse actors beyond traditional Mobile Network Operators (MNOs) must interoperate without pre-established bilateral trust agreements. Existing 3GPP Proximity Services (ProSe) security procedures for UE-to-Network Relay are operator-anchored by design, placing the Core Network on the critical signaling path of every relay session and precluding cross-domain, operator-independent access. This paper presents SliPro, a privacy-preserving ProSe-as-a-Service framework for UE-to-Network Relay services in 6G that replaces operator-anchored authentication with privacy-preserving Attribute-Based Credentials (p-ABC) over the PC5 interface. SliPro enables a Remote UE to authenticate to any relay Provider through a zero-knowledge proof of credential attributes, without contacting the Core Network, without an active 3GPP subscription, and without exposing a stable identifier across sessions. The authorization proof cryptographically binds the session key establishment, closing the gap between control-plane authorization and data-plane protection. We further show that SliPro maps cleanly onto native PC5-S signaling with no mandatory protocol changes. A prototype implementation on real PC5 hardware demonstrates that privacy-preserving authentication completes in under 500 ms, representing less than 6% of the end-to-end service establishment latency, with 100% data-plane success across all experimental runs.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"9868-9892"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11631715","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RIS-Assisted Industrial URLLC With Interference-Aware Max-Matching Diversity 具有干扰感知的最大匹配分集的ris辅助工业URLLC

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-09-11 DOI: 10.1109/OJCOMS.2026.3732981

Binod Kharel;Irfan Muhammad;Hirley Alves

{"title":"RIS-Assisted Industrial URLLC With Interference-Aware Max-Matching Diversity","authors":"Binod Kharel;Irfan Muhammad;Hirley Alves","doi":"10.1109/OJCOMS.2026.3732981","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3732981","url":null,"abstract":"Industrial ultra-reliable low-latency communication (URLLC) is challenging under blocked propagation, dense radio deployments, and residual co-channel interference. This paper develops an outage-driven analytical and subband-allocation framework for RIS-assisted industrial radio access networks. The considered downlink system combines an RIS-assisted blocked serving link, cooperative remote radio heads (RRHs) that provide redundant desired-signal transmission, and non-cooperating RRHs that generate subband-dependent interference over shared OFDMA resources. The desired received power is approximated using moment-matched Gamma random variables, whereas the aggregate interference is characterized through a hypoexponential distribution. Based on these models, tractable closed-form per-subband outage expressions are derived for RIS-only and RIS-assisted cooperative transmission. The resulting outage probabilities are used to construct reliability weights for an interference-aware max-matching diversity (MMD) subband assignment. For fixed feasible interference-activity and cooperation patterns, the proposed MMD method attains the same minimum outage objective as exhaustive search at the design threshold, while requiring only subband-wise weight computation and sorting. Monte Carlo simulations validate the analytical expressions. The results further show that MMD closely outperforms fixed and random allocation and closely follows the single-user proportional fair (PF) benchmark, while RRH cooperation, frequency diversity, dominant-interferer protection, additional transmit antennas, and larger RIS sizes improve reliability and effective goodput.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"11391-11409"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11688108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148985697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Dual-Tier Framework for Intrusion Detection and Mitigation in 5G Open-RAN 5G Open-RAN中入侵检测与缓解的双层框架

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-09-01 DOI: 10.1109/OJCOMS.2026.3729664

Gunasekaran Raja;Janani Alagar Ramanujam;Pronoy Kundu;Fowzaan Rasheed;Harun Siljak

{"title":"A Dual-Tier Framework for Intrusion Detection and Mitigation in 5G Open-RAN","authors":"Gunasekaran Raja;Janani Alagar Ramanujam;Pronoy Kundu;Fowzaan Rasheed;Harun Siljak","doi":"10.1109/OJCOMS.2026.3729664","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3729664","url":null,"abstract":"Open-RAN is transforming 5G and Beyond-5G networks by promoting openness, flexibility, and interoperability across network components. However, this architectural shift introduces new security challenges due to expanded attack surfaces, distributed control mechanisms, and exposed interfaces. Traditional Intrusion Detection Systems (IDS) struggle to address the dynamic threat landscape of O-RAN environments. To address this challenge, we propose ORANGuard, an Artificial Intelligence-driven dual-tier intrusion detection and mitigation framework for O-RAN environments. ORANGuard comprises two core modules: Real-Time Guard (RT-Guard), a real-time threat detection model deployed in the Near-Real-Time RAN Intelligent Controller (Near-RT RIC), and Non-Real-Time Guard (NRT-Guard), a periodic anomaly analysis model operating within the Non-Real-Time RIC, together enabling multi-level threat detection. The framework is built on an end-to-end 5G O-RAN testbed using srsRAN and Open5GS, capturing E2 measurements under both benign and attack conditions. Custom scripts simulated anomalous scenarios, including DDoS, producing a dataset of 17,052 E2 measurement records across a testbed of 4 gNodeBs and 12 UEs. RT-Guard, based on Random Forest, achieved 96.7% accuracy, while NRT-Guard, using an Autoencoder, reached 95.6%. The hierarchical dual-tier decision rule achieved 99.5% accuracy on the held-out test set. RT-Guard required a median detection latency of 5.2 ms and a median detect-and-enforce latency of 17.9 ms, whereas NRT-Guard required 283.6 ms after closure of its one-second analysis window. These results demonstrate the complementary low-latency and anomaly-analysis capabilities of ORANGuard for O-RAN security.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"11524-11535"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11674185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical Layer Security Performance Analysis of MIMOME Systems Over Keyhole Channels 锁孔信道MIMOME系统物理层安全性能分析

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-09-14 DOI: 10.1109/OJCOMS.2026.3733122

Xujie Zang;Hongwen Yang

{"title":"Physical Layer Security Performance Analysis of MIMOME Systems Over Keyhole Channels","authors":"Xujie Zang;Hongwen Yang","doi":"10.1109/OJCOMS.2026.3733122","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3733122","url":null,"abstract":"The inherent openness of wireless networks exposes them to eavesdropping threats. In dense urban environments, signal propagation is frequently characterized by the keyhole effect, which causes channel rank deficiency and cascaded fading, challenging the assumptions of conventional multiple-input multiple-output (MIMO) physical layer security. This paper investigates the secrecy performance of MIMO multiple-antenna-eavesdropper (MIMOME) systems over keyhole channels with independent legitimate and eavesdropper links. We analyze the secrecy performance under three progressive scenarios: perfect CSI without artificial noise (AN), perfect CSI with AN-aided transmission, and practical imperfect CSI with AN. Specifically, we derive closed-form asymptotic expressions for the secrecy outage probability (SOP) and average secrecy rate (ASR) in the high signal-to-noise ratio (SNR) regime using Meijer G-functions and Gauss hypergeometric functions, from which the secrecy diversity order and secrecy array gain are explicitly extracted. The analytical results reveal that AN injection successfully restores the secrecy diversity order from zero to one, while imperfect CSI causes AN leakage that leads to ASR saturation and an SOP floor. The derived asymptotic expressions are verified by Monte Carlo simulations. Our findings provide theoretical guidelines by quantifying the trade-off between AN suppression capabilities and self-interference in cascaded fading environments.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"11441-11454"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11690601","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

End-to-End OTFS Prototyping on Low-Cost SDRs With Energy-Retentive Message Passing Detection 低成本sdr的端到端OTFS原型与能量保留消息传递检测

IF 6.2

IEEE Open Journal of the Communications Society Pub Date : 2026-01-01 Epub Date: 2026-09-18 DOI: 10.1109/OJCOMS.2026.3735246

Dipanjan Adhikary;André Riker;Eirini Eleni Tsiropoulou

{"title":"End-to-End OTFS Prototyping on Low-Cost SDRs With Energy-Retentive Message Passing Detection","authors":"Dipanjan Adhikary;André Riker;Eirini Eleni Tsiropoulou","doi":"10.1109/OJCOMS.2026.3735246","DOIUrl":"https://doi.org/10.1109/OJCOMS.2026.3735246","url":null,"abstract":"The next generation of wireless systems includes the integration of new communication paradigms such as low-earth-orbit satellites, and intelligent sensing and communications, which operate in highly dynamic channels. For the 4th and 5th generation systems, the dominant waveform that has been adopted is the orthogonal frequency division multiplexing (OFDM). However, OFDM performance suffers in such dynamic environments with high Doppler spread. The orthogonal time-frequency space (OTFS) has emerged as a promising waveform for addressing these issues. In this paper, we compare OTFS and OFDM under modeled doubly dispersive channels and analyze three channel-matrix sparsification strategies for message-passing-based OTFS symbol detection. The proposed framework is evaluated through Monte Carlo simulations and an SDR-based channel-emulation experiment. In the latter, a software-generated doubly dispersive channel is applied to the digital transmit samples before they are passed through two stationary PlutoSDRs separated by approximately 1 m. The resulting measurements determine whether the detector trends observed in simulation persist after the waveform traverses the SDR conversion and indoor RF chain, including synchronization, uncompensated oscillator offset and phase noise, and analog-front-end effects. Because the Doppler components are introduced numerically rather than through physical motion or RF-path variation, these measurements do not constitute a true high-mobility over-the-air trial. Under the controlled emulated conditions, OTFS achieves lower Bit Error Rate (BER) than the OFDM baseline, while the proposed energy-retentive sparsification provides a practical complexity–accuracy tradeoff for OTFS receiver design.","PeriodicalId":33803,"journal":{"name":"IEEE Open Journal of the Communications Society","volume":"7 ","pages":"12070-12081"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11698569","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149033689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0