ICT Express最新文献_第9页

SmartHealth: An intelligent framework to secure IoMT service applications using machine learning 智能健康：利用机器学习确保 IoMT 服务应用安全的智能框架

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.10.001

Sita Rani , Sachin Kumar , Aman Kataria , Hong Min

引用次数: 0

Function traffic-aware VNF migration for service restoration in an NFV-enabled IoT system 在支持 NFV 的物联网系统中进行功能流量感知 VNF 迁移以恢复服务

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.11.004

Tuan-Minh Pham , Thi-Minh Nguyen

{"title":"Function traffic-aware VNF migration for service restoration in an NFV-enabled IoT system","authors":"Tuan-Minh Pham , Thi-Minh Nguyen","doi":"10.1016/j.icte.2023.11.004","DOIUrl":"10.1016/j.icte.2023.11.004","url":null,"abstract":"<div><p>Maintaining a service continuum is crucial for providing a reliable service in an Internet-of-Things (IoT) system based on Network Function Virtualization (NFV) due to the distribution of Virtual Network Functions (VNF). We address the optimization problem of VNF migration in an NFV-enabled IoT system (NIoT), considering the dynamics of traffic volume processed by an individual IoT function. We develop an optimization model based on integer linear programming and a function traffic-aware heuristic algorithm to solve the problem. The evaluation results show that our proposed heuristic algorithm offers an approximation solution very close to the optimal VNF migration in significantly reduced time. It outperforms a benchmark solution based on Simulated Annealing in both the service restoration cost and computation time. Furthermore, our findings provide valuable insights into an investment strategy for an IoT service provider seeking to enhance the system performance in the presence of a failure.</p></div>","PeriodicalId":48526,"journal":{"name":"ICT Express","volume":"10 2","pages":"Pages 374-379"},"PeriodicalIF":5.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405959523001479/pdfft?md5=5724545eb5624775a6223c255874b9ce&pid=1-s2.0-S2405959523001479-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135670292","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

Performance analysis and optimization of UAV-assisted NOMA short packet communication systems 无人机辅助 NOMA 短数据包通信系统的性能分析与优化

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.08.001

Tran Manh Hoang , Le The Dung , Ba Cao Nguyen , Taejoon Kim

{"title":"Performance analysis and optimization of UAV-assisted NOMA short packet communication systems","authors":"Tran Manh Hoang , Le The Dung , Ba Cao Nguyen , Taejoon Kim","doi":"10.1016/j.icte.2023.08.001","DOIUrl":"10.1016/j.icte.2023.08.001","url":null,"abstract":"<div><p>In this paper, we propose and analyze an unmanned aerial vehicle (UAV)-assisted non-orthogonal multiple access (NOMA) short packet communication (SPC) system, where finite-size data packets are transmitted from a UAV to multiple users. The block error rate (BLER), throughput, and energy efficiency (EE) are used as metrics to evaluate the proposed system performance. We adopt the Gaussian-Chebyshev quadrature and the first-order Riemann integral to derive the approximate expressions of BLERs. The accuracy of the derived expressions is verified by presenting that numerical results are perfectly matched with analysis results. We also formulate optimization problems to maximize the throughput with respect to the number of transmitted bits and the altitude of the UAV. Numerical results in this paper provide useful knowledge about the relationships among BLER, throughput, EE, transmitted packet size, the altitude of the UAV, and the Rician factor.</p></div>","PeriodicalId":48526,"journal":{"name":"ICT Express","volume":"10 2","pages":"Pages 292-298"},"PeriodicalIF":5.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405959523000942/pdfft?md5=8baab726bf524fbba5712a809d6359ee&pid=1-s2.0-S2405959523000942-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136135941","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

Deployment of mmWave multi-UAV mounted RISs using budget constraint Thompson sampling with collision avoidance 利用预算约束汤普森采样与防碰撞技术部署毫米波多无人飞行器安装的 RIS

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.07.011

Ehab Mahmoud Mohamed

引用次数: 0

Crypto coding system based on the turbo codes with secret keys 基于带有密钥的涡轮编码的密码编码系统

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.08.007

Viacheslav Kovtun, Yuriy Ivanov

{"title":"Crypto coding system based on the turbo codes with secret keys","authors":"Viacheslav Kovtun, Yuriy Ivanov","doi":"10.1016/j.icte.2023.08.007","DOIUrl":"10.1016/j.icte.2023.08.007","url":null,"abstract":"<div><p>In 1997, the US National Science Foundation recognized the need to unite research communities together to solve mutual problems, overcome challenges, future development and practical applications of cryptography and error correction coding. Recent works in this area are connected with turbo codes, which have a special ability to provide error correction characteristics of the information transmission close to theoretically obtained values. Besides, they are used for television (DVB-RCS, DVB-RCT), wireless local networks (WiMAX), software-defined radio systems, mobile (3G, 4G, Inmarsat) and space (CCSDS) communications etc. In this article is presented the crypto coding system based on turbo codes with secret keys used by interleavers. All calculations are performed during data encoding, which reduces the computational complexity of data pre-encryption. The necessary mathematical apparatus was presented, the security level of the communication system was estimated, a simulation of the error correction characteristics was performed, and multimedia information was processed. The working characteristics of the classical and proposed turbo codecs do not differ statistically. The results can be used in communication systems for various functional purposes.</p></div>","PeriodicalId":48526,"journal":{"name":"ICT Express","volume":"10 2","pages":"Pages 330-335"},"PeriodicalIF":5.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405959523001091/pdfft?md5=9532dae942c22d37249cbfc5f48de222&pid=1-s2.0-S2405959523001091-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74510105","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

Optimization of packet transmission scheduling and node parent selection for 802.15.4e Time Slotted Channel Hopping (TSCH) 优化 802.15.4e 时隙信道跳频 (TSCH) 的数据包传输调度和节点父节点选择

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.12.002

S.K. Wijayasekara , P. Sasithong , H.-Y. Hsieh , P. Saengudomlert , C.-B Chae , L. Wuttisittikulkij

{"title":"Optimization of packet transmission scheduling and node parent selection for 802.15.4e Time Slotted Channel Hopping (TSCH)","authors":"S.K. Wijayasekara , P. Sasithong , H.-Y. Hsieh , P. Saengudomlert , C.-B Chae , L. Wuttisittikulkij","doi":"10.1016/j.icte.2023.12.002","DOIUrl":"10.1016/j.icte.2023.12.002","url":null,"abstract":"<div><p>This work investigates the problem of efficient packet scheduling and transmission for IEEE 802.15.4e TSCH based on the Traffic-Aware Scheduling Algorithm (TASA). Three Integer Linear Programming (ILP) formulations are proposed, namely ILP1, ILP2, and ILP3, to comprehensively address key aspects of how packets are optimally delivered from child nodes to the root node, including node parent selection, packet scheduling, and frequency assignment. ILP1 is proposed to model the fundamental operations of TASA including packet scheduling and frequency assignment, while ILP2 further takes node parent selection into consideration for jointly optimizing node parent selection, packet scheduling, and frequency assignment. Despite its superior performance, ILP2 is only applicable to relatively small network problems due to high computational complexity. Therefore, we finally propose ILP3 for fast and efficient node parent selection. ILP3 can be combined with ILP1 and, most importantly, TASA for achieving effective node parent selection atop packet scheduling and frequency assignment for practical TSCH networks. ILP3 combined with ILP 1 led to computational complexity while ILP3 combined with TASA yielded good performance where it required less than one second of execution time and less packet delivery time.</p></div>","PeriodicalId":48526,"journal":{"name":"ICT Express","volume":"10 2","pages":"Pages 442-450"},"PeriodicalIF":5.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405959523001601/pdfft?md5=2f5adadfd16bccc191bfbbd20ab8866e&pid=1-s2.0-S2405959523001601-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139019105","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

Research category classification of scientific articles on human health risks of electromagnetic fields using pre-trained BERT 使用预训练 BERT 对有关电磁场对人体健康危害的科学文章进行研究类别分类

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.08.006

Sang-Woo Lee , Jung-Hyok Kwon , Dongwan Kim , Eui-Jik Kim

引用次数: 0

Overview and empirical analysis of wealth decentralization in blockchain networks 区块链网络财富去中心化概述与实证分析

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2024.02.002

Mindaugas Juodis, Ernestas Filatovas, Remigijus Paulavičius

{"title":"Overview and empirical analysis of wealth decentralization in blockchain networks","authors":"Mindaugas Juodis, Ernestas Filatovas, Remigijus Paulavičius","doi":"10.1016/j.icte.2024.02.002","DOIUrl":"10.1016/j.icte.2024.02.002","url":null,"abstract":"<div><p>The decentralization paradigm has made blockchain one of the most disruptive technologies today. When evaluating the level of decentralization, the key metric for most public blockchain networks is the degree of decentralization of the resources responsible for determining who generates the blocks. In turn, it facilitates a greater understanding of both security and scalability on a blockchain. This work provides an overview of the current state-of-the-art on wealth decentralization, which has not yet received the attention it deserves. We collect data, calculate various wealth decentralization metrics, and compare our results with research on the same methodology. As the amount of data for various blockchains increases rapidly, it is helpful to have techniques to aggregate data for statistical analysis. We introduce and provide conservative estimates of decentralized group metrics based on the reduced data and compare them with full-data measurements. Our research considers both the Layer 1 blockchains of Bitcoin and Ethereum, along with Layer 2 blockchains such as Arbitrum, Optimism, and Polygon.</p></div>","PeriodicalId":48526,"journal":{"name":"ICT Express","volume":"10 2","pages":"Pages 380-386"},"PeriodicalIF":5.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405959524000079/pdfft?md5=cdd1ef5281579e570dc9185b4b505df5&pid=1-s2.0-S2405959524000079-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139890409","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

Blockchain consensus mechanisms comparison in fog computing: A systematic review 雾计算中的区块链共识机制比较：系统性综述

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2024.02.008

Yehia Ibrahim Alzoubi , Alok Mishra

引用次数: 0

A review of thermal array sensor-based activity detection in smart spaces using AI 基于热阵列传感器的智能空间人工智能活动检测综述

IF 5.4 3区计算机科学

ICT Express Pub Date : 2024-04-01 DOI: 10.1016/j.icte.2023.11.007

Cosmas Ifeanyi Nwakanma, Goodness Oluchi Anyanwu, Love Allen Chijioke Ahakonye, Jae-Min Lee, Dong-Seong Kim

{"title":"A review of thermal array sensor-based activity detection in smart spaces using AI","authors":"Cosmas Ifeanyi Nwakanma, Goodness Oluchi Anyanwu, Love Allen Chijioke Ahakonye, Jae-Min Lee, Dong-Seong Kim","doi":"10.1016/j.icte.2023.11.007","DOIUrl":"10.1016/j.icte.2023.11.007","url":null,"abstract":"<div><p>Nowadays, research works into the dynamic and static human activities on Smart spaces abounds. Artificial Intelligence (AI) and low cost non-privacy invasive ambient sensors have made this ubiquitous. This review presents a state-of-the-art analysis, performance evaluation, and future research direction. One of the aims of activity recognition (especially that of humans) systems using thermal sensors and AI is the safety of persons in Smart spaces. In a Smart home, human activity detection systems are put in place to ensure the safety of persons in such an environment. This system should have the ability to monitor issues like fall detection, a common home-related accident. In this work, a review of trends in thermal sensor deployment, an appraisal of the popular datasets, AI algorithms, testbeds, and critical challenges of the recent works was provided to direct the research focus. In addition, a summary of AI models and their performance under various sensor resolutions was presented.</p></div>","PeriodicalId":48526,"journal":{"name":"ICT Express","volume":"10 2","pages":"Pages 256-269"},"PeriodicalIF":5.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405959523001509/pdfft?md5=37960ef6490d2cd38759d29a65f86891&pid=1-s2.0-S2405959523001509-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139301149","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