发布求助
文献互助 智能选刊 最新文献

2022 30th Telecommunications Forum (TELFOR)最新文献

筛选
英文 中文
Guidelines for Design of Helical Antennas 螺旋天线设计导则
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983713
J. Dinkić, D. Olćan, A. Djordjević
{"title":"Guidelines for Design of Helical Antennas","authors":"J. Dinkić, D. Olćan, A. Djordjević","doi":"10.1109/TELFOR56187.2022.9983713","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983713","url":null,"abstract":"This paper summarizes guidelines for the design of nonuniform helical antennas and presents guidelines for the design of uniform helical antennas with the main aim of formulating a unified and comprehensive procedure for the design of helical antennas. The defined procedure provides analytical equations for a fast and reliable design. Further, it also contains an analytical equation that recommends which type of helical antenna is the preferable choice for the available or desired material or specific antenna dimensions.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122025091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
File system performance comparison in the case of Docker container-based virtualization with Volumes and Bind mounts 基于Docker容器的虚拟化与卷和绑定挂载的文件系统性能比较
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983751
Borislav Đorđević, Aleksandar Stefanovic, V. Timčenko
{"title":"File system performance comparison in the case of Docker container-based virtualization with Volumes and Bind mounts","authors":"Borislav Đorđević, Aleksandar Stefanovic, V. Timčenko","doi":"10.1109/TELFOR56187.2022.9983751","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983751","url":null,"abstract":"The goal of this paper is to compare the file system performance of physical operating system and Docker as container-based virtualization using its mechanism for persisting data with Volumes and Bind mounts. The importance of virtualization and its popularity with container-based virtualization is mentioned with an emphasis on OS-type virtualization. In addition, this article contains a detailed description of the Dockers mechanism for persistent data, its operating mode and the difference between Volumes and Bind mounts. The main purpose of this paper is the comparison of Docker Volumes and Bind Mounts file system performance. Thus, we have selected FileBench, one of the best open-source benchmarks for testing file system capabilities.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122121476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Information Communication Technologies as Enabler of Green Transition: Education and Research Perspectives 信息通信技术作为绿色转型的推动者:教育和研究视角
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/telfor56187.2022.9983739
M. Zajc
{"title":"Information Communication Technologies as Enabler of Green Transition: Education and Research Perspectives","authors":"M. Zajc","doi":"10.1109/telfor56187.2022.9983739","DOIUrl":"https://doi.org/10.1109/telfor56187.2022.9983739","url":null,"abstract":"ICT is an important enabler of the green transition. In this talk, we will address the challenges and opportunities of green transformation for ICT engineering education and research. Using selected research activities, we will show how ICT engineering fits into these sociotechnical systems improving quality of life. In the end I will also address the importance of educating students that green transition can be their career choice.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116801981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mantle Cloak Desing of a Dielectric Cylinder for Scattering Cancellation 散射抵消介质柱体的斗篷设计
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983756
Hande Bodur, S. Cimen
{"title":"Mantle Cloak Desing of a Dielectric Cylinder for Scattering Cancellation","authors":"Hande Bodur, S. Cimen","doi":"10.1109/TELFOR56187.2022.9983756","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983756","url":null,"abstract":"This paper presents the mantle cloak design steps of a dielectric cylinder to obtain scattering cancellation. The required surface impedance for scattering cancellation is calculated according to Mie theory and then unit cell parameters are determined. Mesh grid and vertical strip geometries are applied to the dielectric cylinder respectively as a Frequency Selective Surface (FSS) design of the unit cell. Dielectric cylinder with and without FSS coating is simulated, and bi-static radar cross section (RCS) results are obtained. The results for cloaked and uncloaked dielectric cylinders are compared to each other in terms of scattering suppression performance. Notable invisibility is achieved for the cloaked cylinders at the operating frequency.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115331297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Proposal of a New Satellite Channel Model based on Markov Chains Approach 一种基于马尔可夫链方法的卫星信道模型
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983740
Nunzia Palmieri, Luis Miguel Samaniego Campoverde
{"title":"A Proposal of a New Satellite Channel Model based on Markov Chains Approach","authors":"Nunzia Palmieri, Luis Miguel Samaniego Campoverde","doi":"10.1109/TELFOR56187.2022.9983740","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983740","url":null,"abstract":"The study of how the channel affects the communication in a satellite environment, especially in variable conditions, is very important. The advantages of the Adaptive Coding and Modulation (ACM) and the related dynamic adaptations of the various Modulation&Codings (MODCODs) in a Digital Video Broadcasting (DVB) standard can only be appreciated in conditions of channel variability. In this paper our attention is focused on a proposal of a satellite channel model that takes into account the attenuation due to rain. Our modeling method is derived from a model, known in literature, provided by the International Telecommunication Union (ITU). The considered model was created with the help of Matlab and basically consists of two distinct phases: the first, based on the Markov chains, allows to obtain the transition matrix of the states for a given longitude and latitude, while the second, starting from the matrices previously obtained, aims through a polynomial regression, to find a closed formula for the Markov probability, expressed as functions of latitude and longitude.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130004335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of the number of tags and their transmission period on the packet reception ratio in the ultrawideband localization system 超宽带定位系统中标签数量及其传输周期对分组接收率的影响
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983714
V. Djaja-Josko
{"title":"Influence of the number of tags and their transmission period on the packet reception ratio in the ultrawideband localization system","authors":"V. Djaja-Josko","doi":"10.1109/TELFOR56187.2022.9983714","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983714","url":null,"abstract":"With the rising interest in the services that use the information regarding the position of people or objects in the indoor environment, development of systems capable of providing such data can be observed. Various techniques may be used, with radio-based systems being currently popular and promising. Especially, ultrawideband systems are recently getting more attention. In most cases they utilize TOA (Time of Arrival) or TDOA (Time Difference of Arrival) measurements which allows for achieving localization errors lower than in other radio systems. Time measurements imply that all anchor nodes that the system is comprised of, need to be synchronized. In most cases, when synchronization methods are being described, focus is placed on their accuracy, with their influence on other characteristics of the localization system being omitted. In the paper, two wireless synchronization methods are briefly described and their influence on the tags’ packet reception ratio is simulation-tested.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127866475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of Algorithms for Fractional Differentiation of Images 图像分数阶微分算法的比较
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983676
M. Paskas
{"title":"Comparison of Algorithms for Fractional Differentiation of Images","authors":"M. Paskas","doi":"10.1109/TELFOR56187.2022.9983676","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983676","url":null,"abstract":"This paper brings analysis of frequently used algorithms for calculation of the fractional gradients of images. The measures used for the quantitative assessment of the considered algorithms are signal-to-noise ratio and effective average gradient. The results obtained on standard natural images show a distinctive trend in behavior over all images and superior algorithms for certain orders of differentiation. Both measures show similar behavior for the lower orders of differentiation whereas the higher orders of differentiation lead to different treatment of the considered algorithms.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123801296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Serverless Implementations of Real-time Embarrassingly Parallel Problems 实时并行问题的无服务器实现
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983710
D. Mileski, M. Gusev
{"title":"Serverless Implementations of Real-time Embarrassingly Parallel Problems","authors":"D. Mileski, M. Gusev","doi":"10.1109/TELFOR56187.2022.9983710","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983710","url":null,"abstract":"In this paper, we conduct experiments to deploy a scalable serverless computing solution for real-time monitoring of thousands of patients with streaming electrocardiograms as an example of embarrassingly parallel tasks originally executed on two virtual machines. The research question is to find the speedup of such solution versus classical virtual machine approaches with sequential or parallel threads.The challenge of migrating an existing service to a serverless solution is to adapt and reconfigure the code for serverless platform, to write the code to invoke the service in parallel and asynchronously, and to use other services in the cloud that are needed for the whole solution to be functional and scalable. Evaluation of developing various solutions matching migration challenges to Google Cloud Run, Google Cloud Compute Engine, and Google Cloud Storage (customization of code, the configuration of services) shows that greater speedups can be achieved by dividing the Embarrassingly Parallel tasks into sub-tasks executed as a serverless service. We achieved highest speedup of almost 40 for Serverless solution compared to a sequential execution on a virtual machine solution, and speedup of 23 for Serverless solution compared to a Parallel execution using virtual machines.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131897108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Transformer-based NLoS detection in UWB localization systems 基于变压器的超宽带定位系统NLoS检测
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983765
S. Tomovic, K. Bregar, T. Javornik, I. Radusinović
{"title":"Transformer-based NLoS detection in UWB localization systems","authors":"S. Tomovic, K. Bregar, T. Javornik, I. Radusinović","doi":"10.1109/TELFOR56187.2022.9983765","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983765","url":null,"abstract":"Ultra-Wide-Band (UWB) communication is recognized as one of the most promising technologies for indoor localization due to its ability to capture a high-resolution channel impulse response (CIR) at the receiver and penetrate walls and other obstacles. In UWB-based localization systems, a distance between the target object and anchor nodes is estimated by measuring the travel times of UWB signals. In indoor environments, numerous obstacles that block the Line-of-Sight (LoS) path between the target object and anchor nodes induce errors in the estimation of the time of signal flight. As a result, localization accuracy deteriorates. One of the techniques to address this issue is to discard range measurements of non-LoS (NLoS) anchors or to handle them differently when calculating the target position. In this paper, we apply Transformer deep learning model to detect NLoS channel conditions from the raw CIR data. The model has been trained and evaluated on a realistic dataset collected in an industrial environment. The results show performance improvement over the state-of-the-art convolutional neural network model.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134086974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Measurement of the Heart Rate from the Video 从视频中测量心率
2022 30th Telecommunications Forum (TELFOR) Pub Date : 2022-11-15 DOI: 10.1109/TELFOR56187.2022.9983774
Igor Jovanović, Veljko Papić
{"title":"Measurement of the Heart Rate from the Video","authors":"Igor Jovanović, Veljko Papić","doi":"10.1109/TELFOR56187.2022.9983774","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983774","url":null,"abstract":"Heart rate measurement is an important process in the pain recognition from the video. In this research, a method will be explained, where based on variations in color of reflected light from the facial skin, the heart rate is estimated. Subject’s video is an input to the algorithm. The experiment was conducted in conditions of additional light, when the performance of the algorithm is better compared with situation when there is no additional light.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134509672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信