{"title":"Active RIS aided SWIPT secure communication system with partial CSI","authors":"Xiaojia Chen;Chunlong He;Xingquan Li","doi":"10.23919/JCN.2024.000065","DOIUrl":"https://doi.org/10.23919/JCN.2024.000065","url":null,"abstract":"The effectiveness of passive reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) may be limited by significant path loss. Active RIS addresses the “multiplicative fading” observed in traditional passive RIS systems. However, the absence of a radio frequency chain in the RIS poses challenges in acquiring necessary channel state information (CSI) at the base station (BS). We investigates an active RIS-assisted SWIPT system with partial CSI. By optimizing transmit and reflection beamforming concurrently, the RIS and BS minimize power consumption while meeting requirements for information and energy receivers, along with a rate outage constraint for the Eve. Simulation results show that active RIS approach offers a promising solution to mitigate power loss and improve overall SWIPT system performance.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 2","pages":"70-77"},"PeriodicalIF":2.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11011502","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Hierarchical learning for interference management in multi-user LEO satellite networks","authors":"Jihyeon Yun;Bon-Jun Ku;Daesub Oh;Changhee Joo","doi":"10.23919/JCN.2025.000018","DOIUrl":"https://doi.org/10.23919/JCN.2025.000018","url":null,"abstract":"In low Earth orbit (LEO) satellite networks, multiple satellites contend for limited frequency resources when they provide downlink services to ground users, necessitating efficient interference management. Particularly when there are multiple LEO service providers that do not explicitly exchange messages, satellites should learn about per-channel per-user interference. The problem is very challenging due to high learning complexity increasing with user population and time-varying interference caused by satellite orbiting. By exploiting reinforced learning (RL) techniques, we develop a low-complexity learning scheme that effectively allocate resources in respond to time-varying interference in multi-user multi-channel LEO satellite networks. The proposed scheme employs a hierarchical structure that aggregates information, reducing the complexity substantially, and enables the learning during short contact time. We demonstrate through simulations that our proposed scheme improves the sample efficiency and enhances throughput performance through successful interference management.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 2","pages":"119-126"},"PeriodicalIF":2.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11011499","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Information for authors","authors":"","doi":"10.23919/JCN.2025.000028","DOIUrl":"https://doi.org/10.23919/JCN.2025.000028","url":null,"abstract":"","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 2","pages":"128-132"},"PeriodicalIF":2.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11011506","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Ping Zhang;Qing Zhang;Tengfei Ma;Muhua Liu;Ji Zhang;Jiechang Wang
{"title":"Lattice-based group signature scheme and its application in IoMT","authors":"Ping Zhang;Qing Zhang;Tengfei Ma;Muhua Liu;Ji Zhang;Jiechang Wang","doi":"10.23919/JCN.2025.000017","DOIUrl":"https://doi.org/10.23919/JCN.2025.000017","url":null,"abstract":"Internet of medical things (IoMT) is the application of the Internet of things in the medical industry, which enables the storage and processing of patients' medical data. Due to the sensitivity and confidentiality of medical data, security requirements for medical IoT must simultaneously protect data privacy and patient confidentiality. Group signature schemes can satisfy these requirements simultaneously. Serving as a fundamental cryptographic tool, they allow for the anonymous signing of messages. In this paper, based on the Chinese remainder theorem (CRT) and combined with techniques such as trap sampling, orthogonal sampling, and Gaussian sample preimage, a lattice-based group signature scheme is constructed. Compared with existing group signature schemes, this scheme does not require modification of already generated keys when adding or removing members, thus enabling rapid addition or removal of group members. Security analysis demonstrates that this scheme meets anonymity, unforgeability, and resistance against collusion attacks. Finally, the scheme is applied to the model construction of medical IoT to ensure the security and integrity of private data.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 2","pages":"59-69"},"PeriodicalIF":2.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11011504","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Chen Chen;Fengfan Yang;Hongjun Xu;Lawrence Muthama Paul
{"title":"Optimized design of quasi-GRS codes with multi-step simplified MLD","authors":"Chen Chen;Fengfan Yang;Hongjun Xu;Lawrence Muthama Paul","doi":"10.23919/JCN.2025.000004","DOIUrl":"https://doi.org/10.23919/JCN.2025.000004","url":null,"abstract":"In this manuscript, inspired by the special construction of generalized Reed-Solomon (GRS) codes, we prove that any linear block code can be contained by a high-dimensional GRS code from the perspective of the isomorphism between the code space and the polynomial space. Then, a new code family, named quasi-GRS codes, is constructed, which can exactly contain a GRS code of lower 1-dimensional (1-D) and be contained by a higher 1-D GRS code. Furthermore, the exhaustive search approach is developed to assist in selecting the quasi-GRS code with the optimal code weight distribution. In addition, a multi-step simplified maximum likelihood decoding (MSS-MLD) is proposed to efficiently decode the quasi-GRS coding scheme, whose decoding complexity is significantly reduced at an acceptable performance loss compared to the optimal MLD. From the Monte-Carlo simulation, the optimized quasi-GRS coding scheme outperforms the existing non-binary Bose-Chaudhuri-Hocquenghem (BCH) coding scheme with a similar code rate by a margin of over 1 dB at the high signal-to-noise (SNR) region under identical channel conditions.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 1","pages":"40-49"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10923676","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Transformer-enabled hybrid precoding for TDD large-scale antenna arrays systems with channel sensing","authors":"Ken Long;Hongjun Liu","doi":"10.23919/JCN.2025.000002","DOIUrl":"https://doi.org/10.23919/JCN.2025.000002","url":null,"abstract":"Hybrid precoding is a crucial technique for massive multiple-input multiple-output (MIMO) systems owing to its capability to offer an adequate beamforming gain while reducing the hardware cost. However, the nonconvex objective functions and constraints pose great challenges to hybrid precoders design. The conventional precoding method that contains a two-step process including channel estimation and precoding design based on such estimate is not necessarily optimal to tackle this problem. In this article, a transformer-empowered approach waiving high-dimensional channel estimation is proposed to design precoders with the goal of simplifying the complicated hybrid precoding problem into the optimization of neural network structure. Specifically, the proposed approach learns channel sensing from uplink pilots and then operates downlink hybrid precoding depended on interleaved-polymerization-transformer-based analog precoding network (IPTAP-Net) which decomposes on a peruser basis and conventional linear digital precoding algorithm to reduce computational complexity in multi-user systems. Simulations show that the proposed methodology acquires remarkable performance improvement and strong robustness, as compared to state-of-the-art hybrid precoding schemes. Furthermore, proposed approach develops a generalizable talent for manifold multi-user cells.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 1","pages":"23-31"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10923678","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Energy efficient trajectory design for fixed-wing UAV enabled two-way amplify-and-forward relaying","authors":"Lili Guo;Shibing Zhang;Xuan Zhu;Xiaodong Ji","doi":"10.23919/JCN.2025.000003","DOIUrl":"https://doi.org/10.23919/JCN.2025.000003","url":null,"abstract":"This paper investigates optimal trajectory design for an unmanned aerial vehicle (UAV) enabled two-way relaying, where a fixed-wing UAV employs an amplify-and-forward protocol to assist data exchange between two ground users. With the aim of maximizing the system energy efficiency (EE), an optimization problem corresponding to the UAV's trajectory design is formulated, where the UAV's initial/final speed and location constraints in addition to the acceleration constraint of the UAV are considered. The initial optimization problem is intractable due to its non-concave objective function and nonconvex constraints. To this end, slack variables are introduced, and then the successive convex approximation (SCA) method and the Dinkelbach's algorithm are applied to transform it into a convex optimization problem, which is solved by a proposed iterative algorithm. Simulation results show that the proposed iterative algorithm converges quite quickly, and with the trajectory design, the two-way UAV relaying is much more superior than the compared benchmark schemes in terms of EE.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 1","pages":"32-39"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10923674","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Fault recovery of 10BASE-T1S automotive ethernet with bus/ring hybrid topology","authors":"Jihyeon Min;Youngil Park","doi":"10.23919/JCN.2024.000071","DOIUrl":"https://doi.org/10.23919/JCN.2024.000071","url":null,"abstract":"Automotive Ethernet has emerged as a communication protocol to meet the escalating demands in applications such as advanced driver assistance systems (ADAS), autonomous driving, and connected vehicles. This technology surpasses the capabilities of the traditional controller area network (CAN) by providing higher bandwidth and supporting bidirectional communication, which is essential for real-time applications and the easy expansion of networks through Ethernet switches. Furthermore, automotive Ethernet guarantees packet transmission within the bounded latency, achieving low packet latency and jitter, and low packet loss through time-sensitive networking (TSn), a set of standards within the IEEE 802 network, which ensures the operation of time-critical applications. TSN also helps for automotive Ethernet, which requires reliability to deliver messages from time-critical applications without errors or loss. Among TSN standards, frame replication and elimination for reliability (FRER) stands out as a technology that provides redundancy. Although FRER is useful in detecting data loss, it consumes significant bandwidth and works only in a mesh topology. Therefore, it is difficult to be used in the bus type automotive Ethernet such as 10BASE-T1S. The bus topology presents a problem wherein if a segment of the cable becomes damaged, communication throughout the entire network becomes impossible. In this paper, we propose a fault-tolerant redundancy protocol for within the 10BASE-T1S bus topology. Our method involves adapting the physical layer collision avoidance (PLCA) protocol, originally utilized in the 10BASE-T1S bus topology, for operation in a ring-type connection. This approach offers the advantage of maintaining compatibility with the existing PLCA protocol in use. We verify the effectiveness of our proposed method through simulations and hardware emulation, confirming its ability to restore network functionality in the event of hard faults, such as cable disconnections and node failures.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 1","pages":"1-9"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10923679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Open access publishing agreement","authors":"","doi":"10.23919/JCN.2025.000011","DOIUrl":"https://doi.org/10.23919/JCN.2025.000011","url":null,"abstract":"","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 1","pages":"56-58"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10923681","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
{"title":"Situation-aware deep reinforcement learning for autonomous nonlinear mobility control in cyber-physical loitering munition systems","authors":"Hyunsoo Lee;Soyi Jung;Soohyun Park","doi":"10.23919/JCN.2025.000001","DOIUrl":"https://doi.org/10.23919/JCN.2025.000001","url":null,"abstract":"With the rapid development of autonomous mobility technologies, drones are now widely used in many applications, including military domain. Particularly in battlefield conditions, designing a deep reinforcement learning (DRL)-based autonomous control algorithm presents significant challenges due to the need for real-time and adjustable nonlinear trajectory planning. Therefore, this paper introduces a novel situation-aware DRL-based autonomous nonlinear drone mobility control algorithm tailored for cyber-physical loitering munition applications. The proposed DRL-based drone mobility control algorithm is crafted with a focus on real-time situation-aware operations, enabling it to navigate through many obstacles encountered on the battlefield efficiently. For efficient observation and intuitive fast understanding of time-varying real-time situations, this paper presents an algorithm that works on a cyber-physical virtual battlefield environment using Unity. In detail, our proposed DRL-based nonlinear drone mobility control algorithm utilizes situation-aware sensing components that are implemented with a Raycast function in Unity virtual scenarios. Based on the gathered situation-aware information, the drone can autonomously and nonlinearly adjust its trajectory during flight. Thus, this approach is obviously beneficial for avoiding obstacles in complex and unpredictable battlefields. Our visualization- based performance evaluation shows that the proposed algorithm outperforms other mobility control algorithms, with an average performance nearly twice as high when the obstacle density is 50%. This superiority is further evidenced by the detailed trajectory planning presented.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"27 1","pages":"10-22"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10923673","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}