IEEE Open Journal of Vehicular Technology最新文献_第4页

Adaptive RIS Design and Optimization for Cooperative RIS-Assisted Wireless Systems 协同RIS辅助无线系统的自适应RIS设计与优化

IF 4.8

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-14 DOI: 10.1109/OJVT.2025.3588543

Tarun Jain;Sainath Bitragunta;Ashutosh Bhatia

{"title":"Adaptive RIS Design and Optimization for Cooperative RIS-Assisted Wireless Systems","authors":"Tarun Jain;Sainath Bitragunta;Ashutosh Bhatia","doi":"10.1109/OJVT.2025.3588543","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3588543","url":null,"abstract":"We propose an adaptive RIS-based cooperative transmission strategy that jointly selects one of two RIS paths and dynamically optimizes the number of active meta-atoms to maximize physical layer (PHY) secrecy capacity under a total average power constraint. Unlike existing approaches that fix the RIS size <italic>K</i> or assume identical fading on all links, our framework uses long-term statistics to probabilistically choose between two RISs (upper or lower) with arbitrary first-hop fading, and leverages instantaneous channel state information (CSI) on the selected path to solve a convex <italic>K</i>-sizing problem via a Lagrangian multiplier approach. We derive and present the solution for optimal K, and numerically evaluate the average PHY secrecy capacity and average PHY secrecy efficiency for the proposed optimal strategy. Numerical results show that the proposed optimal-<inline-formula><tex-math>$text{K}$</tex-math></inline-formula> strategy achieves up to 35% higher average PHY secrecy capacity and 50% improvement in average PHY secrecy efficiency compared to a fixed-<italic>K</i> benchmark strategy across moderate power thresholds. Furthermore, we present an insightful asymptotic analysis for average PHY secrecy capacity in an interesting scaling regime. Our findings demonstrate the practical benefits of adaptive RIS for cooperative PHY secure and energy-efficient beyond fifth generation (B5G) wireless systems.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"2022-2032"},"PeriodicalIF":4.8,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11078926","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739947","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

Next-Gen UAV-Satellite Communications: AI Innovations and Future Prospects 下一代无人机卫星通信：人工智能创新和未来展望

IF 4.8

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-08 DOI: 10.1109/OJVT.2025.3587028

Sherief Hashima;Ahmad Gendia;Kohei Hatano;Osamu Muta;Mostafa S. Nada;Ehab Mahmoud Mohamed

{"title":"Next-Gen UAV-Satellite Communications: AI Innovations and Future Prospects","authors":"Sherief Hashima;Ahmad Gendia;Kohei Hatano;Osamu Muta;Mostafa S. Nada;Ehab Mahmoud Mohamed","doi":"10.1109/OJVT.2025.3587028","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3587028","url":null,"abstract":"The convergence of sixth-generation (6G) networks with unmanned aerial vehicles (UAVs) and satellites is poised to introduce substantial improvements to the landscape of wireless communication, paving the way for a unified and uninterrupted space-air-ground-sea network that ensures comprehensive global connectivity. At the heart of this transformative paradigm lies artificial intelligence (AI), which drives innovation across diverse sectors by enhancing decision-making autonomy, enabling real-time data processing, and optimizing network performance and coverage. This survey paper explores AI-enabled UAV-satellite communications for 6G applications, focusing on its challenges, potential, and future. This new system combines the strengths of 6G networks, UAVs (advanced drones), and satellites. It opens up new possibilities in precision agriculture, disaster management, enhanced telecommunication services, and remote sensing. Despite its promise, this field faces complex challenges. These include spectrum management, security risks, regulatory barriers, and integrating AI operations seamlessly. This paper comprehensively analyzes these challenges, offering innovative solutions and outlining future research directions to unlock the complete capabilities of 6G-enabled UAV-satellite communications. Furthermore, it includes a case study demonstrating the effectiveness of multi-armed bandit (MAB) algorithms in optimizing resource allocation and decision-making processes for UAV-low Earth orbit (LEO) satellite communication scenarios, showcasing significant improvements in network performance. This work lays the foundation for a new generation of ultra-connected, data-driven applications that will redefine global connectivity and technological advancement by addressing these critical aspects.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"1990-2021"},"PeriodicalIF":4.8,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11072807","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739946","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

Performance Analysis of RIS-Assisted RF-Based Detection of Unauthorized UAVs 基于ris辅助射频的非法无人机检测性能分析

IF 5.3

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-07 DOI: 10.1109/OJVT.2025.3586263

Yousef Awad;Suhail Al-Dharrab;Wessam Mesbah

{"title":"Performance Analysis of RIS-Assisted RF-Based Detection of Unauthorized UAVs","authors":"Yousef Awad;Suhail Al-Dharrab;Wessam Mesbah","doi":"10.1109/OJVT.2025.3586263","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3586263","url":null,"abstract":"In this paper, the problem of unauthorized drone detection is considered. In particular, we propose a novel RF-based UAV detection technique aided by reconfigurable intelligent surfaces (RISs) considering realistic air-to-ground (A2G) channel conditions under Rician fading channels. Furthermore, we develop an analytical framework that provides the optimal phase shifts of the RISs and closed-form expressions for the detection probabilities. Additionally, the impact of the RISs placement is investigated considering the worst-case scenario in which we have a minimum detection probability. Finally, the minimum number of reflecting elements per RIS required in the case of blocked direct line-of-sight (LoS) is derived to outperform the LoS conditions without the assistance of RISs. Monte Carlo simulations corroborate and confirm the accuracy of the derived expressions under the aforementioned channel conditions and we demonstrate the average detection probability given randomly distributed RISs. Our results have shown that an overall accuracy of 0.99 can be achieved under the scenarios when active RISs are utilized along with an existing direct LoS link.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"1963-1976"},"PeriodicalIF":5.3,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11072289","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704952","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

Corrections to “SOC-Based Simulation of 3D MIMO Mobile-to-Mobile Fading Channels: A Riemann Sum Approach” 对“基于soc的三维MIMO移动到移动衰落信道仿真：一种黎曼和方法”的修正

IF 4.8

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-07 DOI: 10.1109/OJVT.2025.3586536

Raúl A. Fabián-Rodríguez;Carlos A. Gutiérrez;Francisco R. Castillo-Soria;Cesar A. Azurdia-Meza;Pablo Adasme

引用次数: 0

Multi-UAV Reinforcement Learning With Realistic Communication Models: Recent Advances and Challenges 基于现实通信模型的多无人机强化学习：最新进展与挑战

IF 4.8

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-07 DOI: 10.1109/OJVT.2025.3586774

Tiziana Cattai;Francesco Frattolillo;Andrea Lacava;Prasanna Raut;Jennifer Simonjan;Salvatore D'Oro;Tommaso Melodia;Evgenii Vinogradov;Enrico Natalizio;Stefania Colonnese;Francesca Cuomo;Luca Iocchi

{"title":"Multi-UAV Reinforcement Learning With Realistic Communication Models: Recent Advances and Challenges","authors":"Tiziana Cattai;Francesco Frattolillo;Andrea Lacava;Prasanna Raut;Jennifer Simonjan;Salvatore D'Oro;Tommaso Melodia;Evgenii Vinogradov;Enrico Natalizio;Stefania Colonnese;Francesca Cuomo;Luca Iocchi","doi":"10.1109/OJVT.2025.3586774","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3586774","url":null,"abstract":"The interest in applications related to Multi-Unmanned Aerial Vehicle (UAV) systems has been growing exponentially inthe last few years. Reinforcement Learning (RL) presents one of the most popular alternatives for solving Multi-UAV tasks, thanks to its flexible requirements for modelingthe problem. However, it is often applied to abstractions of the original problem, thus leaving to next development phases the integration of RL solutions to the actual systems. This choice may not guarantee the overall optimal performance of the implemented system. In this survey, we analyze the literature on Multi-UAV applications that utilize reinforcement learning, with particular attention to works that consider realistic communication channels. We focus on identifying the key variables that influence communication and whether these variables are integrated within the RL framework or considered externally. Additionally, we identify key trends, challenges, and future directions in the field, providing a comprehensive overview for researchers and practitioners interested in the practical deployment of RL-based Multi-UAV systems.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"2067-2081"},"PeriodicalIF":4.8,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11072350","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773297","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

Analysis and Prediction of Coverage and Channel Rank for UAV Networks in Rural Scenarios With Foliage 农村有叶场景下无人机网络覆盖和信道等级分析与预测

IF 5.3

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-02 DOI: 10.1109/OJVT.2025.3585537

Donggu Lee;Ozgur Ozdemir;Ram Asokan;Ismail Guvenc

{"title":"Analysis and Prediction of Coverage and Channel Rank for UAV Networks in Rural Scenarios With Foliage","authors":"Donggu Lee;Ozgur Ozdemir;Ram Asokan;Ismail Guvenc","doi":"10.1109/OJVT.2025.3585537","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3585537","url":null,"abstract":"Uncrewed aerial vehicles (UAVs) are expected to play a key role in 6G-enabled vehicular-to-everything (V2X) communications, requiring high data rates, low latency, and reliable connectivity for mission-critical applications. Multi-input multi-output (MIMO) technology is essential for meeting these demands. However, UAV link performance is significantly affected by environmental factors such as signal attenuation, multipath propagation, and blockage from obstacles, particularly dense foliage in rural areas. In this paper, we investigate RF coverage and channel rank over UAV channels in foliage-dominated rural environments using ray tracing (RT) simulations. We conduct RT-based channel rank and RF coverage analysis over Lake Wheeler Field Labs at NC State University to examine the impact on UAV links. Custom-modeled trees are integrated into the RT simulations using NVIDIA Sionna, Blender, and the Open Street Map (OSM) database to capture realistic blockage effects. Results indicate that tree-induced blockage impacts RF coverage and channel rank at lower UAV altitudes. We also propose a Kriging interpolation-based 3D channel rank interpolation scheme, leveraging the observed spatial correlation of channel rank in the given environments. The accuracy of the proposed scheme is evaluated using the mean absolute error (MAE) metric and compared against baseline interpolation methods. Finally, we compare the RT-based received signal strength (RSS) and channel rank results with real-world measurements from the NSF AERPAW testbed, demonstrating reasonable consistency between simulation results and the measurements.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"1943-1962"},"PeriodicalIF":5.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11066253","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687724","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

LR-FHSS Transceiver for Direct-to-Satellite IoT Communications: Design, Implementation, and Verification 用于直接到卫星物联网通信的LR-FHSS收发器：设计，实现和验证

IF 5.3

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-01 DOI: 10.1109/OJVT.2025.3585160

Sooyeob Jung;Seongah Jeong;Jinkyu Kang;Gyeongrae Im;Sangjae Lee;Mi-Kyung Oh;Joon Gyu Ryu;Joonhyuk Kang

{"title":"LR-FHSS Transceiver for Direct-to-Satellite IoT Communications: Design, Implementation, and Verification","authors":"Sooyeob Jung;Seongah Jeong;Jinkyu Kang;Gyeongrae Im;Sangjae Lee;Mi-Kyung Oh;Joon Gyu Ryu;Joonhyuk Kang","doi":"10.1109/OJVT.2025.3585160","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3585160","url":null,"abstract":"This paper proposes a long range-frequency hopping spread spectrum (LR-FHSS) transceiver design for the Direct-to-Satellite Internet of Things (DtS-IoT) communication system. The DtS-IoT system has recently attracted attention as a promising non-terrestrial network (NTN) solution to provide high-traffic and delay-tolerant data transfer services, such as wide-area situational awareness (WASA) in smart grids and car share management in automotive applications, to IoT devices in global coverage. In particular, this study provides guidelines for the overall DtS-IoT system architecture and design details that conform to the Long Range Wide-Area Network (LoRaWAN). Furthermore, we also detail various DtS-IoT use cases. Considering low-Earth orbit (LEO) satellites, we develop the LR-FHSS transceiver to improve system efficiency, which is a leading attempt to build practical satellite communication systems using LR-FHSS, excluding commercial products. Moreover, we apply a robust synchronization scheme against the Doppler effect and co-channel interference (CCI) caused by LEO satellite channel environments, including signal detection for the simultaneous reception of numerous frequency hopping signals and an enhanced soft-output-Viterbi-algorithm (SOVA) for the header and payload receptions. Lastly, we present proof-of-concept implementation and testbeds using an application-specific integrated circuit (ASIC) chipset and a field-programmable gate array (FPGA) that verify the performance of the proposed LR-FHSS transceiver design of DtS-IoT communication systems. The laboratory test results reveal that the proposed LR-FHSS-based framework with the robust synchronization technique can provide wide coverage, seamless connectivity, and high-throughput communication links for the realization of future satellite communication networks.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"1920-1942"},"PeriodicalIF":5.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11062698","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687678","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 Novel Stochastic Channel Model for WPAN Short-Range Scenarios Based on 3GPP Framework and LoS Multipath Measurements at 105 GHz 基于3GPP框架和105ghz LoS多径测量的WPAN近程随机信道模型

IF 4.8

IEEE Open Journal of Vehicular Technology Pub Date : 2025-07-01 DOI: 10.1109/OJVT.2025.3584903

Mihiro Hashimoto;Yusuke Koda;Norichika Ohmi;Hiroaki Endo;Hiroshi Harada

{"title":"A Novel Stochastic Channel Model for WPAN Short-Range Scenarios Based on 3GPP Framework and LoS Multipath Measurements at 105 GHz","authors":"Mihiro Hashimoto;Yusuke Koda;Norichika Ohmi;Hiroaki Endo;Hiroshi Harada","doi":"10.1109/OJVT.2025.3584903","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3584903","url":null,"abstract":"This paper presents a novel stochastic channel model (SCM) for wireless personal area network (WPAN) short-range scenarios based on the third-generation partnership project (3GPP) framework and line-of-sight (LoS) multipath measurements at 105 GHz with a 4 GHz bandwidth channel sounder. We derive the statistical distributions of large- and small-scale parameters in a conference room, corridor, and office room for the WPAN usage. The ranges of transmitter (TX)–receiver (RX) distances are 0.7–4 m, 1–5 m, and 2–5 m, respectively. We conducted measurements at eight RX positions in the conference room and the corridor, and four RX positions in the office room. The TX and RX were placed at a height of 0.15 m from the table in the conference and office rooms, and at a height of 1.3 m from the floor in corridors. Our primary objective is to enable high-speed WPAN indoor communications in the sub-terahertz (THz) band while using the widely adopted 3GPP standards physical layer waveform for WPAN systems to promote broader commercial adoption. Hence, in this paper, we propose a channel simulation framework based on the well-accepted 3GPP SCM, thereby facilitating seamless system design and evaluation within the 3GPP community. The proposed SCM is validated based on extensive channel generation simulations by demonstrating the consistency of the generated channel responses with our propagation channel measurements.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"2155-2170"},"PeriodicalIF":4.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11061805","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853049","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

HOPFNet: An End-to-End CSI Acquisition Method for FDD Massive MIMO Systems HOPFNet: FDD大规模MIMO系统的端到端CSI采集方法

IF 4.8

IEEE Open Journal of Vehicular Technology Pub Date : 2025-06-30 DOI: 10.1109/OJVT.2025.3584626

Qiang Sun;Haoye Li;Yushi Shen;Honghui Ji;Zejun Li;Miaomiao Xu;Jiayi Zhang

{"title":"HOPFNet: An End-to-End CSI Acquisition Method for FDD Massive MIMO Systems","authors":"Qiang Sun;Haoye Li;Yushi Shen;Honghui Ji;Zejun Li;Miaomiao Xu;Jiayi Zhang","doi":"10.1109/OJVT.2025.3584626","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3584626","url":null,"abstract":"In massive multiple-input multiple-output (MIMO) systems utilizing the frequency-division duplex (FDD), conventional methods for acquiring downlink channel state information (CSI) lead to high computational complexity and heavy feedback overheads. To tackle the aforementioned difficulties, we propose an end-to-end deep learning (DL)-based framework for CSI acquisition, called high-speed orthogonal probabilistic feature-based attention network (HOPFNet), which integrates pilot design and CSI feedback. Unlike conventional end-to-end network designs, HOPFNet ignores channel estimation at the user equipment (UE). Instead, it directly maps the pilot signals received at the UE into feedback codewords, which are then transmitted back to the base station (BS) to reconstruct the downlink channel. In recent years, Transformer-based networks have proven highly effective for CSI acquisition. However, the self-attention mechanism of Transformer-based networks introduces high computational complexity, posing challenges to actual deployment. To this end, we propose a lightweight Transformer, which is based on a high-speed orthogonal probabilistic feature-based attention (HOPFA) mechanism. The simulation results verify that the proposed HOPFNet can significantly reduce computation complexity while attaining lower normalized mean square error (NMSE) compared to the benchmark models. In addition, these results demonstrate superior efficiency in computing resources.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"1977-1989"},"PeriodicalIF":4.8,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11059824","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739945","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

Active, Passive, and Absorptive RIS-Aided 6G Network Under Non-Orthogonal CCI 非正交CCI下的主动、被动和吸收型ris辅助6G网络

IF 4.8

IEEE Open Journal of Vehicular Technology Pub Date : 2025-06-26 DOI: 10.1109/OJVT.2025.3583545

Volkan Özduran;Ehsan Soleimani-Nasab;Nikolaos Nomikos;Imran Shafique Ansari;Panagiotis Trakadas

{"title":"Active, Passive, and Absorptive RIS-Aided 6G Network Under Non-Orthogonal CCI","authors":"Volkan Özduran;Ehsan Soleimani-Nasab;Nikolaos Nomikos;Imran Shafique Ansari;Panagiotis Trakadas","doi":"10.1109/OJVT.2025.3583545","DOIUrl":"https://doi.org/10.1109/OJVT.2025.3583545","url":null,"abstract":"This paper investigates the impact of randomly deployed non-orthogonal co-channel interference (CCI), originating from the information exchange process among non-orthogonal multiple access (NOMA) users, in an active, passive, and absorptive reconfigurable intelligent surface (RIS)-assisted dual-hop network. More specifically, the study considers that the information exchange process involves the source utilizing active, passive, or absorptive RIS architecture, along with a line of sight (LOS)/non-line of sight (NLOS) link between source and destination terminals. Additionally, this study considers the limited non-orthogonal CCI affecting the destination terminal in an independent and identically distributed (i.i.d.) non-orthogonal CCI scenario. Theoretical insights and Monte Carlo-based simulations collectively demonstrate that non-orthogonal CCI severely degrades system performance, particularly in high signal-to-noise ratio conditions, leading to notable losses in system coding gain. Meanwhile, results also reveal that increasing the number of RIS elements stabilizes the system and mitigates the impact of CCI on its performance.","PeriodicalId":34270,"journal":{"name":"IEEE Open Journal of Vehicular Technology","volume":"6 ","pages":"2048-2066"},"PeriodicalIF":4.8,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11052664","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757680","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