Journal of Communications and Networks最新文献_第2页

Deep-learning-aided fast successive cancellation decoding of polar codes 深度学习辅助的极性码快速连续对消译码

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-12-01 DOI: 10.23919/JCN.2024.000070

Haogang Feng;Haiyu Xiao;Shida Zhong;Zhuqing Gao;Tao Yuan;Zhi Quan

{"title":"Deep-learning-aided fast successive cancellation decoding of polar codes","authors":"Haogang Feng;Haiyu Xiao;Shida Zhong;Zhuqing Gao;Tao Yuan;Zhi Quan","doi":"10.23919/JCN.2024.000070","DOIUrl":"https://doi.org/10.23919/JCN.2024.000070","url":null,"abstract":"With the continuous evolution of 5G communication technology to B5G and the next generation of communication technology, Deep Learning technology will also lead the automation and intelligent transformation of communication systems. Existing research has shown that the combination of deep learning and communication technology is expected to break some performance bottlenecks of traditional communication algorithms and solutions. This paper explores the application of deep learning (DL) in polar decoding algorithms, proposing a DL-aided-FSC (DL-FSC) polar code decoder algorithm. For the DL-FSC decoding algorithm, the conventional successive cancellation (SC) decoder is partitioned into multiple sub-blocks, which are replaced by R0 nodes, R1 nodes and sub-DL decoder. The log-likelihood ratio (LLR) and frozen bit pattern are input to the sub-DL decoder to predict decode codewords under any decoding code rate. Through simulation verification, under the PBCH channel of 5G communication, the DL-FSC decoder achieves similar block error rate (BLER) performance to the SC decoder, even improving by about 1%. In order to verify the performance optimization effect of the proposed algorithm at the hardware level, the DL-FSC deocder circuit design was completed. Through FPGA synthesis, the proposed decoder achieves a throughput of about 4571 Mbps, which is 1.71× improvement in decoding throughput at the expense of increased logic resources.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"26 6","pages":"593-602"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10834493","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938133","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}

引用次数: 0

Efficient task offloading and resource allocation in an intelligent UAV-MEC system 智能无人机- mec系统的高效任务卸载和资源分配

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-11-20 DOI: 10.23919/JCN.2024.000050

Benedetta Picano;Romano Fantacci

{"title":"Efficient task offloading and resource allocation in an intelligent UAV-MEC system","authors":"Benedetta Picano;Romano Fantacci","doi":"10.23919/JCN.2024.000050","DOIUrl":"https://doi.org/10.23919/JCN.2024.000050","url":null,"abstract":"Nowadays, the functional integration of digital twin (DT) technology and artificial intelligence (AI) methodologies has enabled reliable predictions of many random processes, supporting efficient control and optimization procedures. In line with this trend, this paper explores the joint use of these technologies in an AI-empowered DT framework for an unmanned aerial vehicle-aided multi-access edge computing (UAV-MEC) system. Specifically, this approach defines an intelligent UAV-MEC system capable of significantly improving service quality and deployment flexibility. The focus is on a UAV-MEC network consisting of multiple elementary service areas, where DTs efficiently orchestrate and reduce congestion levels by utilizing UAVs with onboard processing capabilities. A potential architecture for the DTs is outlined, conceptualizing each DT as a collection of basic cyber entities. Additionally, a suitable framework utilizing a matching game approach is proposed to effectively manage task offloading, channel allocation, and the dynamic assignment of UAV support to congested service zones within the same area. Finally, comprehensive simulation results validate the efficacy of the proposed intelligent UAV-MEC system, as indicated by metrics such as task completion delay and accuracy in congestion prediction.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"26 6","pages":"666-678"},"PeriodicalIF":2.9,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10759571","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937882","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}

引用次数: 0

Compensation of phase noise in massive-MIMO uplink communications based on expectation-maximization algorithm 基于期望最大化算法的大规模mimo上行通信相位噪声补偿

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-11-20 DOI: 10.23919/JCN.2024.000025

Alberto Tarable;Francisco J. Escribano

{"title":"Compensation of phase noise in massive-MIMO uplink communications based on expectation-maximization algorithm","authors":"Alberto Tarable;Francisco J. Escribano","doi":"10.23919/JCN.2024.000025","DOIUrl":"https://doi.org/10.23919/JCN.2024.000025","url":null,"abstract":"Phase noise (PN) is a major disturbance in MIMO systems, where the contribution of different oscillators at the transmitter and the receiver side may degrade the overall performance and offset the gains offered by MIMO techniques. This is even more crucial in the case of massive MIMO, since the number of PN sources may increase considerably. In this work, we propose an iterative receiver based on the application of the expectation-maximization algorithm. We consider a massive MIMO framework with a general association of oscillators to antennas, and include other channel disturbances like imperfect channel state information and Rician block fading. At each receiver iteration, given the information on the transmitted symbols, steepest descent is used to estimate the PN samples, with an optimized adaptive step size and a threshold-based stopping rule. The results obtained for several test cases show how the bit error rate and mean square error can benefit from the proposed phase-detection algorithm, even to the point of reaching the same performance as in the case where no PN is present, offering better results than a state-of-the-art alternative. Further analysis of the results allow to draw some useful trade-offs respecting final performance and consumption of resources.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"26 6","pages":"603-616"},"PeriodicalIF":2.9,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10759570","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938134","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}

引用次数: 0

copyright transferform 版权转让表

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-10-01 DOI: 10.23919/JCN.2024.000061

引用次数: 0

Successive interference cancellation-based channel estimation for self-interference cancellation in in-band full-duplex systems 基于连续干扰消除的信道估计，用于消除带内全双工系统中的自干扰

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-10-01 DOI: 10.23919/JCN.2024.000048

Jin Kwan Kim;Yunjoong Park;Joon Young Kim

{"title":"Successive interference cancellation-based channel estimation for self-interference cancellation in in-band full-duplex systems","authors":"Jin Kwan Kim;Yunjoong Park;Joon Young Kim","doi":"10.23919/JCN.2024.000048","DOIUrl":"https://doi.org/10.23919/JCN.2024.000048","url":null,"abstract":"The integrated sensing and communications (ISAC) system has become a promising scheme for combining sensing and communication features to send data and sense the physical space concurrently. Although it aims to understand the channel condition and communication environment with sensing capability, it still requires sustainable high-data transmission with efficient spectrum usage. The in-band full-duplex (IBFD) system can be a possible solution to support high data transmission while increasing spectrum efficiency. Since IBFD has a self-interference issue, one of the significant factors that deteriorate its performance, we need to investigate possible solutions to resolve this matter. In this paper, we present an improved self-interference cancellation receiver with successive interference cancellation (SIC)-based channel estimation for the IBFD system. Since SIC aims to mitigate the multiple interference effects, our proposed algorithm applied SIC to the channel estimation for the performance gain. Our results show that SI cancellation with SIC-based channel estimation improves the IBFD bit error rate (BER) of the new radio (NR) for the ISAC system.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"26 5","pages":"521-532"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748583","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600163","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}

引用次数: 0

RSMA-aided satellite-aerial-vehicle integrated networks: Secrecy performance evaluation with non-ideal hardware RSMA 辅助卫星-空中-车辆集成网络：非理想硬件的保密性能评估

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-10-01 DOI: 10.23919/JCN.2024.000052

Feng Zhou;Xingwang Li;Jian Cheng;Ji Wang;Kefeng Guo

{"title":"RSMA-aided satellite-aerial-vehicle integrated networks: Secrecy performance evaluation with non-ideal hardware","authors":"Feng Zhou;Xingwang Li;Jian Cheng;Ji Wang;Kefeng Guo","doi":"10.23919/JCN.2024.000052","DOIUrl":"https://doi.org/10.23919/JCN.2024.000052","url":null,"abstract":"This work evaluates the secrecy performance for the rate splitting multiple access-aided satellite-aerial-vehicle integrated networks, particularly, non-ideal hardware is further considered at the transmission nodes. To enhance the transmission, rate splitting multiple access scheme is utilized in the considered networks. In addition, multiple unmanned-aerial-vehicles (UAVs) are utilized to help the transmission from the satellite to the vehicle destinations under multiple eavesdroppers. To balance the system performance and complexity, partial selection strategy is applied at the UAVs. Owing to some practical reasons, the direct transmission link is not applied in the considered system. By considering the above the limitations, this paper obtains the exact and asymptotic expressions for the secrecy outage probability to confirm the influences of non-ideal hardware, system parameters and channel parameters on the secrecy performance of the secrecy networks. Moreover, the investigations for the secrecy energy efficiency are also provided in this paper. At last, several representative Monte Carlo simulations are plotted to verify the rightness of the derived results.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"26 5","pages":"477-489"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748587","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600245","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}

引用次数: 0

Energy-efficient optimization for secure wireless-powered backscatter communications with imperfect CSI and artificial noise 针对不完美 CSI 和人工噪声的安全无线供电反向散射通信的高能效优化

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-10-01 DOI: 10.23919/JCN.2024.000040

Mingfu Zhu;Shuping Ni;Ran Xu;Yi Jin

引用次数: 0

Special issue on integrated sensing and communications (ISAC) 综合传感与通信（ISAC）特刊

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-10-01 DOI: 10.23919/JCN.2024.000059

De Mi;Zhengyu Zhou;Fan Liu;Zesong Fei;Bo Ai;Derrick Wing Kwn Ng;Yajun Zhao

引用次数: 0

Joint beamforming for ris-assisted integrated sensing and secure communication in UAV networks 为无人机网络中的路由辅助综合传感和安全通信提供联合波束成形

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-10-01 DOI: 10.23919/JCN.2024.000051

Sangmi Moon;Huaping Liu;Intae Hwang

{"title":"Joint beamforming for ris-assisted integrated sensing and secure communication in UAV networks","authors":"Sangmi Moon;Huaping Liu;Intae Hwang","doi":"10.23919/JCN.2024.000051","DOIUrl":"https://doi.org/10.23919/JCN.2024.000051","url":null,"abstract":"Integrated sensing and communication (ISAC) has attracted interest as a potential technology for 6G networks because it efficiently combines sensing and communication functions while utilizing shared spectrum resources. ISAC systems use reconfigurable intelligent surfaces (RISs) to dynamically control propagation environments, improving signal quality and coverage in challenging environments for unmanned aerial vehicle (UAV) networks. In this study, we propose a novel solution for joint beamforming in RIS-assisted ISAC systems within UAV networks. By leveraging a deep reinforcement learning (DRL) framework, we aim to optimize beamforming at both the ISAC base station and the RIS mounted on a UAV. The proposed solution maximizes the secrecy rate while ensuring radar detection requirements are met, addressing the challenges posed by non-convex optimization problems. The simulation results demonstrate that deploying RIS within ISAC systems significantly enhances system performance, particularly in terms of secure communication and radar detection, even in dynamic environments such as UAV networks. The proposed solution shows considerable improvements in secrecy rate and adaptability under varying conditions, underscoring the potential of RIS-assisted ISAC for future 6G networks.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"26 5","pages":"502-508"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748601","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600415","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}

引用次数: 0

Joint placement and communication optimization of uav base stations in GPS-denied environments 全球定位系统失效环境中无人机基站的联合布局与通信优化

IF 2.9 3区计算机科学

Journal of Communications and Networks Pub Date : 2024-10-01 DOI: 10.23919/JCN.2024.000056

Jimin Yang;Jongkwan Lee;Jaesung Lim

{"title":"Joint placement and communication optimization of uav base stations in GPS-denied environments","authors":"Jimin Yang;Jongkwan Lee;Jaesung Lim","doi":"10.23919/JCN.2024.000056","DOIUrl":"https://doi.org/10.23919/JCN.2024.000056","url":null,"abstract":"There has been a recent increase in the studies on integrated sensing and communication (ISAC) technology within unmanned aerial vehicles (UAVs). In our paper, we propose a UAV base station (BS) localization method under aerial global positioning system (GPS) jammed environments, where the UAV-BS simultaneously provides communication service to user equipments (UEs) on ground. Unaffected UEs are utilized as reference anchor nodes to position UAV-BS to a near optimal location. Studying UAV deployment in environments where GPS access in unavailable is crucial due to the susceptibility of UAVs to GPS jamming, which poses a potential risk of inaccuracy for ISAC systems. We jointly optimize UAV-BS communication performance and localization accuracy in terms of transmission power, root mean square error (RMSE), and position dilution of precision (PDOP). Further, we introduce three different algorithms to select the optimal set of reference nodes for accurate UAV-BS localization. Nodes are selected based on relative UE positions and different geometric configurations they form. Simulation is conducted for different UE distribution scenarios and results confirm that our proposed scheme can optimize the communication power and localization performance of UAV-BS under different PDOP constraints.","PeriodicalId":54864,"journal":{"name":"Journal of Communications and Networks","volume":"26 5","pages":"490-501"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748594","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600418","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}

引用次数: 0