Vehicular Communications最新文献_第6页

A security-enhanced certificateless aggregate signcryption scheme for vehicular ad hoc networks 一种针对车载自组织网络的安全增强的无证书聚合签名加密方案

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-24 DOI: 10.1016/j.vehcom.2025.100897

Wanqing Wu , Junjie Chen

{"title":"A security-enhanced certificateless aggregate signcryption scheme for vehicular ad hoc networks","authors":"Wanqing Wu , Junjie Chen","doi":"10.1016/j.vehcom.2025.100897","DOIUrl":"10.1016/j.vehcom.2025.100897","url":null,"abstract":"<div><div>Vehicular Ad Hoc Networks (VANETs) are high-speed mobile wireless communication networks that play a pivotal role in shaping the future of intelligent transportation systems. In many fields, certificateless aggregate signcryption (CLASC) serves as a reliable method that reduces computational and communication overheads while enhancing security. Due to these advantages, in recent years, an increasing number of signcryption schemes have been presented in VANETs. In this paper, a security analysis of Dai et al.'s pairing-free CLASC scheme for vehicular sensor networks is conducted. The analysis results reveal its vulnerability to public key replacement attacks. To address this security flaw, a security-enhanced certificateless aggregate signcryption scheme is proposed and demonstrated its confidentiality and unforgeability against adaptive chosen ciphertext/message attack in the random oracle model. Additionally, the proposed scheme is demonstrated to satisfy the security attributes in VANETs. Eventually, the performance analysis reveal that the proposed CLASC scheme demonstrates superior computational and communication efficiency compared to the related schemes.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"53 ","pages":"Article 100897"},"PeriodicalIF":5.8,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Resource allocation strategy for vehicular communication networks based on multi-agent deep reinforcement learning 基于多智能体深度强化学习的车载通信网络资源分配策略

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-06 DOI: 10.1016/j.vehcom.2025.100895

Zhibin Liu, Yifei Deng

{"title":"Resource allocation strategy for vehicular communication networks based on multi-agent deep reinforcement learning","authors":"Zhibin Liu, Yifei Deng","doi":"10.1016/j.vehcom.2025.100895","DOIUrl":"10.1016/j.vehcom.2025.100895","url":null,"abstract":"<div><div>In complex and high-mobility vehicular communication networks, rapidly changing channel conditions, signal interference, and stringent latency requirements of safety services pose significant challenges to existing wireless resource allocation schemes. We propose a novel resource allocation method named AMADRL. It is based on the multi-agent deep reinforcement learning (MADRL) algorithm and incorporates attention mechanisms (AM). This method first improves the traditional MADRL framework by employing two critic networks to estimate the corresponding global and local reward functions, achieving joint optimization of spectrum and power allocation. This optimization balances the individual interests of agents with the collective benefits, meeting the low-latency communication requirements of vehicle-to-vehicle (V2V) links. And this method effectively reduces the interference to the vehicle-to-infrastructure (V2I) links. Building on this foundation, we further integrate AM into the framework. The AM enables the model to selectively focus on critical information, dynamically adjusting resource allocation strategies. Simulation results demonstrate that, compared with random methods and conventional deep reinforcement learning (DRL) methods, the proposed algorithm exhibits superior convergence speed and stability. It effectively meets the communication requirements of different links and significantly improves spectrum efficiency.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"53 ","pages":"Article 100895"},"PeriodicalIF":5.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Light security scheme for Cooperative, Connected and Automated Mobility (CCAM) 协作、互联和自动移动（CCAM）的轻安全方案

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-05 DOI: 10.1016/j.vehcom.2025.100892

Ramzi Boutahala , Hacène Fouchal , Marwane Ayaida

{"title":"Light security scheme for Cooperative, Connected and Automated Mobility (CCAM)","authors":"Ramzi Boutahala , Hacène Fouchal , Marwane Ayaida","doi":"10.1016/j.vehcom.2025.100892","DOIUrl":"10.1016/j.vehcom.2025.100892","url":null,"abstract":"<div><div>Cooperative, Connected and Automated Mobility (CCAM) is a new paradigm adopted by academia and industry in order to provide safe, secure and sustainable mobility on all kinds of roads (highways, urban and rural roads). CCAM takes advantage of Cooperative Intelligent Transport Systems (C-ITS) to improve safety and to reduce traffic congestion thanks to communication and cooperation among all relevant actors (vehicle, road infrastructure, pedestrians, etc.). In Europe and the USA, adapted communication protocols have been proposed to ensure cooperation through the exchange of specific messages. In this study, we focus on the European protocols, particularly the Cooperative Awareness Messages (CAMs) as defined by the European Telecommunications Standards Institute (ETSI). CAMs are composed of a payload containing information about the vehicle status (speed, location, heading, etc.) and additional security information. This information includes a Pseudonym Certificate (PC) and a signature to guarantee the sender's authentication. However, since CAMs are sent periodically by vehicles at frequencies from 1 to 10 Hz, this addition of security data to the payload significantly increases the load and bandwidth of the communication channel. Instead of exhaustive authentication, we propose a new approach that allows vehicles to authenticate each other for the first time when they meet. Once this level of trust is reached, vehicles stop sending authenticated messages during a variable period of time (called a trust period). In addition, we propose a trust verification process to avoid malicious activities during this trust period. Our approach significantly reduces the number of signed sent CAMs, the verification and signature computations, leading to reduce communication overhead. Simulation tests conducted over the OMNET++ platform demonstrate that our approach leads to a significant decrease in communication overhead, reducing the volume of CAMs exchanged by 56%.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"53 ","pages":"Article 100892"},"PeriodicalIF":5.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Assessing the impact of communication delays on advanced air mobility cooperative surveillance 评估通信延迟对先进空中机动协同监视的影响

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-05 DOI: 10.1016/j.vehcom.2025.100896

Nour El-Din Safwat, Alessandro Gardi, Kathiravan Thangavel, Roberto Sabatini

{"title":"Assessing the impact of communication delays on advanced air mobility cooperative surveillance","authors":"Nour El-Din Safwat, Alessandro Gardi, Kathiravan Thangavel, Roberto Sabatini","doi":"10.1016/j.vehcom.2025.100896","DOIUrl":"10.1016/j.vehcom.2025.100896","url":null,"abstract":"<div><div>Advanced air mobility, the next evolution in air transportation, emphasizes the crucial need for a high level of automation to enable the coexistence of manned and unmanned aircraft and transform airspace from segregated to unsegregated, empowering aircraft to manage self-separation and collision avoidance autonomously. This paper introduces a separation assurance and collision avoidance that adopts a unified analytical framework, leveraging both cooperative and non-cooperative sensory data to generate an avoidance volume, considering the performances of navigation and surveillance systems. Expanding upon this system, we address performance issues in data link and vehicle-to-vehicle communication systems, considering delays attributed to human response, negotiation for deconfliction, and command and control communication for unmanned aircraft. We propose methods to enhance communication system performance, including the development of a predictive algorithm that uses piecewise linear regression to predict transmission delays based on network load and the probability of success for packet reception, enabling real-time adjustments to minimize communication delays. We also investigated how the Joint Authorities for Rulemaking on Unmanned Systems (JARUS) automation framework can mitigate these communication delays and improve overall system performance. Additionally, we explore alternative communication technologies aimed at reducing position uncertainty arising from these delays. Finally, we present a simulation case study illustrating the impact of different communication technologies on cooperative separation and the minimum separation distance between Unmanned Aircraft Systems (UAS). The results demonstrate significant reductions in position uncertainty through these enhancements, underscoring their potential to improve safety and efficiency in air transportation.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"53 ","pages":"Article 100896"},"PeriodicalIF":5.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

PPORM: A PPO-assisted packet reordering mechanism of heterogeneous VANETs for enhancing goodput and stability in fog computing PPORM：一种ppo辅助的异构vanet包重排序机制，用于提高雾计算的稳定性和有效性

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-05 DOI: 10.1016/j.vehcom.2025.100894

Xiaoya Zhang , Yuyang Zhang , Ping Dong , Xiaojiang Du , Chengxiao Yu , Hongke Zhang

{"title":"PPORM: A PPO-assisted packet reordering mechanism of heterogeneous VANETs for enhancing goodput and stability in fog computing","authors":"Xiaoya Zhang , Yuyang Zhang , Ping Dong , Xiaojiang Du , Chengxiao Yu , Hongke Zhang","doi":"10.1016/j.vehcom.2025.100894","DOIUrl":"10.1016/j.vehcom.2025.100894","url":null,"abstract":"<div><div>Integrated Vehicular Networks (VANETs) constructed through the collaboration of various heterogeneous networks, such as 4G, 5G, satellite networks, and Unmanned Aerial Vehicle (UAV) networks, provide an effective solution to the resource constraints between vehicles and edge fog computing nodes. Reordering Buffer (RB) is crucial in concurrent data transmission between vehicles and edge fog computing nodes via heterogeneous VANETs. RB is in charge of storing out-of-order packets, waiting for packets with smaller sequence numbers, and delivering in-order packets to upper-layer applications. However, current packet reordering mechanisms are challenging in providing stable and high goodput due to the inappropriate timeout timers and uneven delivery rules. In this paper, we propose a PPO-assisted packet reordering mechanism (PPORM) to achieve optimal control of packet delivery. We first transform the goodput maximization problem into the optimal timeout threshold of RB and the optimal delivery moment of each packet. Secondly, we introduce a Proximal Policy Optimization-assisted Timeout Threshold Updating (TTU) algorithm to dynamically adjust the threshold in response to real-time changes in network conditions. Further, we present a Multifactor Smooth Delivery (MSD) algorithm to regulate the optimal queuing delay for each packet and enhance the stability of the real-time throughput as much as possible. Experimental results show that PPORM improves goodput by <span><math><mn>6.94</mn><mtext>%</mtext><mo>∼</mo><mn>45.57</mn><mtext>%</mtext></math></span> and improves stability by <span><math><mn>32.5</mn><mtext>%</mtext><mo>∼</mo><mn>49.58</mn><mtext>%</mtext></math></span> compared with other baseline algorithms.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"53 ","pages":"Article 100894"},"PeriodicalIF":5.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 5 G mmWave vivaldi antenna for vehicular communication 用于车载通信的紧凑型5g毫米波vivaldi天线

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-03 DOI: 10.1016/j.vehcom.2025.100893

Sahar Saleh , Tale Saeidi , Nick Timmons , Ayman A. Althuwayb , Faroq Razzaz

{"title":"Compact 5 G mmWave vivaldi antenna for vehicular communication","authors":"Sahar Saleh , Tale Saeidi , Nick Timmons , Ayman A. Althuwayb , Faroq Razzaz","doi":"10.1016/j.vehcom.2025.100893","DOIUrl":"10.1016/j.vehcom.2025.100893","url":null,"abstract":"<div><div>As a key contribution, this article presents the first successful application of the newly developed Vivaldi Non-uniform Profile Antenna (VNSPA) theory to a Vivaldi Tapered Slot Antenna (VTSA) operating in the 26 GHz band (24.25–27.5 GHz). The proposed design achieves both compactness and simplicity while maintaining high performance. This antenna is a promising candidate for vehicular communication applications, aiming to enhance connectivity, road safety, security, and environmental system control. First, a VTSA with a small volume of 8.1 <strong>×</strong> 8.3 <strong>×</strong> 0.813 mm<sup>3</sup> is designed, fabricated, and tested, providing S<sub>11</sub> value < -11.34 dB at 15.96–28.41 GHz and a maximum realized gain of 6 dBi. Second, a 33 % size reduction of its tapered slot profile (TSP) is obtained by applying the VNSPA theory, resulting in the Vivaldi Non-uniform Slot Antenna (VNSA). Based on this theory, two different non-uniform slot profiles (NSPs) are obtained for VNSA 1 and 2 with final 37 % and 32.55 % volume reduction, respectively, based on parametric studies. VNSA 1 and 2 provide S<sub>11</sub> values < -11.6 dB and < -14.3 dB at 16.71 to 27.68 GHz and 17.94 to 27.38 GHz with peak realized gains of 4.6 dBi and 5.15 dBi, respectively. Another key contribution of this research is the on-vehicle analysis of the proposed antenna's applicability for communication. This includes testing the antenna in various positions and demonstrating its capability to radiate in multiple directions, enabling effective communication with other vehicles, pedestrians, roadside units, and mobile networks. Another significant aspect of this research is the calculation of specific absorption rate (SAR), which addresses the effects of electromagnetic radiation on the driver, one back-seat passenger, and pedestrians. The Computer Simulation Technology (CST) software is used to carry out the simulation.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"53 ","pages":"Article 100893"},"PeriodicalIF":5.8,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143304000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dimensioning space-air-ground integrated networks for in-flight 6G slice orchestration 空中6G片编排的空间-空地集成网络的尺寸

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-01 DOI: 10.1016/j.vehcom.2024.100866

László Toka , Endre Angelus Papp , Tibor Cinkler , István Gódor , László Hévizi

{"title":"Dimensioning space-air-ground integrated networks for in-flight 6G slice orchestration","authors":"László Toka , Endre Angelus Papp , Tibor Cinkler , István Gódor , László Hévizi","doi":"10.1016/j.vehcom.2024.100866","DOIUrl":"10.1016/j.vehcom.2024.100866","url":null,"abstract":"<div><div>In this study, we present an in-depth analysis of communication services for commercial airline passengers, focusing on the challenges posed by increasing internet traffic demand. We explore the integration of satellite, airborne, and terrestrial networks, emphasizing the roles of Low Earth Orbit (LEO) satellites, High-Altitude Platform Station (HAPS), and Terrestrial Aviation Network (TAN)-based services. Our contribution includes a theoretical model for optimizing resource allocation and capacity planning in non-terrestrial wireless networks, using a bipartite graph approach and linear programming techniques. The model shows adaptability and efficiency, providing key insights through numerical analysis. Leveraging a detailed air traffic dataset, a machine learning-based aggregation method, and real-world network parameters, our research addresses current challenges, such as scalable network capacity dimensioning in high-density airspaces and meeting the demand for quality of service by robust resource provisioning, and advances the design of communication networks for Space–Air–Ground Integrated Network (SAGIN). Numerical results from European airspace suggest that complementing TAN and LEO satellite networks with HAPS-based services will be essential as airline passengers adopt ground-level internet usage patterns.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"51 ","pages":"Article 100866"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

STC-GraphFormer: Graph spatial-temporal correlation transformer for in-vehicle network intrusion detection system STC-GraphFormer：用于车载网络入侵检测系统的图时空关联变换器

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-01 DOI: 10.1016/j.vehcom.2024.100865

Gaber A. Al-Absi , Yong Fang , Adnan A. Qaseem

{"title":"STC-GraphFormer: Graph spatial-temporal correlation transformer for in-vehicle network intrusion detection system","authors":"Gaber A. Al-Absi , Yong Fang , Adnan A. Qaseem","doi":"10.1016/j.vehcom.2024.100865","DOIUrl":"10.1016/j.vehcom.2024.100865","url":null,"abstract":"<div><div>The integration of several developing technologies and their applications with Internet of Vehicles (IoVs) techniques has been improved. Utilizing these emerging technologies renders the in-vehicle network more susceptible to intrusions. Furthermore, the utilization of Electronic Control Units (ECUs) in current vehicles has experienced a significant increase, establishing the Controller Area Network (CAN) as the widely used standard in the automotive field. The CAN protocol provides an efficient and broadcast-based protocol for facilitating serial data exchange between ECUs. However, it lacks provisions for security measures such as authentication and encryption. The attackers have exploited these weaknesses to launch various attacks on CAN-based IVN. This paper proposes STC-GraphFormer, an innovative spatial-temporal model that utilizes a Graph Convolutional Network (GCN) and a transformer. The spatial GCN layers are utilized to construct and acquire local spatial features, while the temporal transformer layers are employed to capture the long-term global temporal dependencies. By employing this integrated approach, STC-GraphFormer can learn complex spatial-temporal correlations within the IVN data, enabling it to detect and classify malicious intrusions. The proposed STC-GraphFormer has been validated using five real in-vehicle CAN datasets that cover a wide range of attacks that have not been previously investigated together. The finding results indicate that the STC-GraphFormer is more efficient than the SOTA approaches. It demonstrates excellent performance, with Car-hacking (0.99983), IVN intrusion detection (0.9991), CAN Dataset for intrusion detection “OTIDS” (0.9992), CAR hacking: attack & defense challenge (0.9901), and Survival analysis (0.9982), with a minimal false alarm rate and the highest achievable F1 scores for various types of attacks.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"51 ","pages":"Article 100865"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The stability for CACC system with time delays and reconstitution information of vehicles for compensating delays based on Bi-LSTM 基于 Bi-LSTM 的具有时间延迟和补偿延迟的车辆重组信息的 CACC 系统的稳定性

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-01 DOI: 10.1016/j.vehcom.2024.100868

Chenmin Zhang, Yonggui Liu, Zeming Li

{"title":"The stability for CACC system with time delays and reconstitution information of vehicles for compensating delays based on Bi-LSTM","authors":"Chenmin Zhang, Yonggui Liu, Zeming Li","doi":"10.1016/j.vehcom.2024.100868","DOIUrl":"10.1016/j.vehcom.2024.100868","url":null,"abstract":"<div><div>The vehicle platoon using the cooperative adaptive cruise control (CACC) transmits information between vehicles via communication networks to increase the control performance. However, time delays are inevitable during the network transmission of information, which influence the stability of the CACC vehicle system. This paper proposes a method for compensating information affected by time delays based on a Bi-LSTM model. First, the third-order dynamics of the CACC vehicle systems are established, and the control strategies are proposed with the leading, preceding and following vehicles. The conditions of local stability and string stability for the CACC vehicle systems without time delays are derived based on the Routh-Hurwitz stability criterion and the frequency domain methods, which reveal the relationship between the model parameters and the controller parameters. For the CACC vehicle systems with time delays, the maximum time delays that ensure the local stability and string stability are achieved using the similar methods accordingly. However, the stability of the CACC vehicle systems is destroyed, when the time delay exceeds the maximum value. To deal with the impact of time delays, the bidirectional long short term memory (Bi-LSTM) model is adopted to predict and reconstitute the information affected by time delays. Furthermore, the relevant parameters are set and the real vehicle data is used for calculation and simulation. The simulation results confirm the local and string stability can be ensured, and further show the boundary of the maximum time delay may reach 0.45<em>s</em> for the CACC vehicle systems in this paper. In order to highlight superiority of Bi-LSTM, by comparing LSTM and KF with BiLSTM, the simulation results show Bi-LSTM has the highest correlation coefficient and the smallest root mean square error, which verify that Bi-LSTM reconstructing information affected by time delays is more effective than KF and LSTM.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"51 ","pages":"Article 100868"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

RIS-aided jellyfish search optimization for multiuser wireless networks improvement 多用户无线网络改进的 RIS 辅助水母搜索优化

IF 5.8 2区计算机科学

Vehicular Communications Pub Date : 2025-02-01 DOI: 10.1016/j.vehcom.2024.100863

Zahraa Tarek , Mona Gafar , Shahenda Sarhan , Abdullah M. Shaheen , Ahmed S. Alwakeel

{"title":"RIS-aided jellyfish search optimization for multiuser wireless networks improvement","authors":"Zahraa Tarek , Mona Gafar , Shahenda Sarhan , Abdullah M. Shaheen , Ahmed S. Alwakeel","doi":"10.1016/j.vehcom.2024.100863","DOIUrl":"10.1016/j.vehcom.2024.100863","url":null,"abstract":"<div><div>Reconfigurable Intelligent Surfaces (RISs) provide a promising avenue for enhancing performance and implementation efficiency in multiuser wireless communication systems by enabling the manipulation of radio wave propagation. In this paper, an Augmented Jellyfish Search Optimization Algorithm (AJFSOA) is specifically designed to optimize the achievable rate in RIS-equipped systems. AJFSOA distinguishes itself from previous approaches through the integration of a novel quasi-reflection operator, which aids in escaping local optima, and an adaptive neighborhood search mechanism that improves the algorithm's exploitation capabilities. These enhancements enable AJFSOA to efficiently refine promising solutions near the current best solution. Unlike prior research, our work explores two objective models: maximizing the average achievable rate for all users to ensure balanced system performance and maximizing the minimum achievable rate for individual users to improve worst-case scenarios. The comprehensive analysis demonstrates that AJFSOA effectively increases system capacity and supports a larger number of users simultaneously. An extensive testing is performed on communication systems with twenty and fifty users, comparing AJFSOA's performance against existing algorithms, including the standard JFSOA, Particle Swarm Optimization (PSO), Ant Colony Optimization (ACO), Genetic Algorithm (GA) and Differential Evolution (DE). Results show that AJFSOA outperforms the other algorithms significantly, with improvements of 26.59%, 9.75%, 14.71%, 0.29% and 13.52% over JFSOA, PSO, ACO, GA and DE, respectively, for the first objective model, and 21.66%, 10.6%, .17.44%, 2.71% and 22.36% for the second model. These findings highlight the distinct advantages and superior performance of the presented AJFSOA in efficient optimizing multiuser wireless networks.</div></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"51 ","pages":"Article 100863"},"PeriodicalIF":5.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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