{"title":"Capacity Analysis of Channel Models for Different Environments at 28/39 GHz with NYUSIM","authors":"Ahmet Furkan Kola, Ç. Kurnaz","doi":"10.1109/TELFOR56187.2022.9983777","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983777","url":null,"abstract":"With the implementation of 5G, new frequencies, shorter distances between antennas, different lines of sight, and changing path loss parameters affect communication efficiency depending on the communication environment. In this study, the effect of channels created in different environments for 28 GHz and 39 GHz frequencies and LOS/NLOS conditions on 5G channel capacity was investigated using the NYUSIM channel simulator. As a result of the analyses, it has been discussed which channel parameters can be used to optimize communication efficiency in different environments.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"43 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":"123079834","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}
{"title":"Road Infrastructure Planning Using Digital Geospatial Data","authors":"S. Špica, Milan Čeliković, Srdan Popov","doi":"10.1109/TELFOR56187.2022.9983669","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983669","url":null,"abstract":"Presented study introduces the software implementation of the Georeferenced Information System of power grid infrastructure in the vicinity of State Road IB 34 in the Republic of Serbia. The exact locations of power substations and traces of HV overhead lines are used in the form of Geospatial data (GeoJSON), in order to determine the optimal power supply of road infrastructure and to avoid interference with the HV power grid. Appropriate georeferenced and technical data can greatly improve the quality and reliability of newly planned low-voltage power installations needed for safe public transport. This will give rise to more economical and timesaving supervision of the state road IB 34 power installation system.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"38 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":"116138575","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}
{"title":"Sound-based logging detection using deep learning","authors":"Budimir Anđelić, M. Radonjić, S. Djukanović","doi":"10.1109/TELFOR56187.2022.9983766","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983766","url":null,"abstract":"Illegal logging represents a major environmental issue which impedes the stability of forest ecosystem and supports climate change, flooding, soil erosion, weeding of habitats, extinction of animal and plant species. This paper proposes a method for mitigating the logging issue by automatically detecting the sound of logging activities. More specifically, we propose to detect the chainsaw sound using deep learning. Two deep learning approaches were considered, one based on multilayer perception (MLP) and the other based on convolutional neural network (CNN). As inputs to our models, we used time, frequency and time-frequency audio features. For this research, we collected two datasets of audio signals. First dataset, downloaded from YouTube, is used for training and validating the proposed models. Second dataset, which we recorded in a real environment, is used for testing of the proposed models. The experiments have shown that the CNN-based approach outperforms the MLP-based one, with a sound classification accuracy of 94.96% on the first dataset and 88.87% on the second dataset.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"57 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":"127722313","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}
Maja Vukasovic, Danko Miladinović, Adrian Milakovic, Pavle V. Vuletic, Žarko Stanisavljević
{"title":"Programming Applications Suitable for Secure Multiparty Computation Based on Trusted Execution Environments","authors":"Maja Vukasovic, Danko Miladinović, Adrian Milakovic, Pavle V. Vuletic, Žarko Stanisavljević","doi":"10.1109/TELFOR56187.2022.9983726","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983726","url":null,"abstract":"Secure Multiparty Computation enables secure processing of the data from multiple users without ever exposing the data or the computation code of one user to the other parties or computation hardware provider. Such an approach enables new applications and better data computation results through secure and private data sharing and making richer datasets for the analysis. This paper explains how Secure Multiparty Computation is made possible by recent development in the computer processor industry and the popularization of the Trusted Execution Environment functionality. Four problems that need to be addressed are highlighted and solutions for two of them are presented. Design for one of the key components of a Confidential Computing System for Artificial Intelligence is provided. It is the RESTful web application implemented in the Python programming language using Flask framework, which is running on a secure virtual machine.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"52 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":"121767933","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}
Nikola Kovačević, Đorđe Mišeljić, Aleksa Stojković
{"title":"RISC-V vector processor for acceleration of machine learning algorithms","authors":"Nikola Kovačević, Đorđe Mišeljić, Aleksa Stojković","doi":"10.1109/TELFOR56187.2022.9983779","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983779","url":null,"abstract":"In this paper we present an RTL implementation of a 32-bit parametrizable vector processor for acceleration of algorithms working in fixed-point arithmetic. The processor uses the latest RISC-V vector extension ISA specification and is deployed and tested on a Zynq Soc using Avnet Zedboard. Our microarchitecture exploits the inherent parallelism in algorithms by splitting execution across multiple vector lanes and enabling chaining of vector instructions. To provide the required number of read/write ports for instruction chaining, the vector register bank uses the double-pumping technique in combination with an XOR-based approach. First, the microarchitecture of the system is explained in detail, and the results of the implementation on the Zedboard are presented for some different processor configurations. We then compared the performance of the implemented design with some different modern processor cores.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"299 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":"121876955","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}
{"title":"Site Connectivity with Towalink – Implementing an Open Source \"SD-WAN Light\"","authors":"Dirk Henrici, L. Wischhof","doi":"10.1109/TELFOR56187.2022.9983724","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983724","url":null,"abstract":"Towalink is an open source solution for interconnecting multiple sites securely and flexibly. It is based on WireGuard and BGP. With central management of the site routers, it can be considered an \"SD-WAN light\". We explain the rationale and design decisions of the implementation and share the experiences of using the solution in a real-world setup with a complex topology.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"70 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":"125265918","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}
{"title":"The Ability to Minimize Ultrawide Bandpass Microstrip Microwave Filter","authors":"D. Nešić, T. Milošević","doi":"10.1109/TELFOR56187.2022.9983771","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983771","url":null,"abstract":"The possibility of minimizing an ultrawide bandpass microstrip microwave filter by bending short-circuited stubs is shown. Simulated case without bending and three cases with bending are presented.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"33 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":"125514929","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}
{"title":"State of the Art of Zero-Knowledge Proofs in Blockchain","authors":"D. Capko, S. Vukmirovic, Nemanja Nedic","doi":"10.1109/TELFOR56187.2022.9983760","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983760","url":null,"abstract":"Blockchain technology promises a decentralized ecosystem for building apps with decentralized ownership and high security level. One of the most adopted blockchain ecosystems is based around Ethereum blockchain. Ethereum currently has a huge scaling issue, making its use very expensive. Different scaling solutions are proposed based on Optimistic rollups but they have a very long finality time. Zero-Knowledge (ZK) rollup (based on ZK Proof) is another way and offers high security with very fast final resolution. Problem with ZK rollup is that it is very computationally expensive, but some solutions have significant performance improvements. In this paper we presented different solutions that improve performance of ZK rollup.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"31 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":"125629089","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}
{"title":"Tangible information for active consumers: data from smart home device and smart meter become customer newsletters","authors":"Ivana Milev, M. Zajc","doi":"10.1109/TELFOR56187.2022.9983708","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983708","url":null,"abstract":"Transforming raw data collected by smart home appliances, combined with smart meter data, into tangible information is necessary to encourage consumers to actively participate in the green transition. Technologies and formats that are widely accepted and used must be considered when developing services so that no one is left behind. This article presents the process of data ETL with the goal of developing comparative feedback and delivering it to consumers via email in the form of personalized monthly newsletters. The results show that consumers like the newsletters and the emojis and that they remind them to use the portal.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"48 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":"124039668","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}
Stefan Stanković, Zoran Čiča, D. Drajić, Ranko Petrovic, M. Perić
{"title":"Implementation of GRE Tunelling on low cost SoM","authors":"Stefan Stanković, Zoran Čiča, D. Drajić, Ranko Petrovic, M. Perić","doi":"10.1109/TELFOR56187.2022.9983761","DOIUrl":"https://doi.org/10.1109/TELFOR56187.2022.9983761","url":null,"abstract":"At the present times, many companies are engaged in the development and implementation of customized solutions for secure communication and traffic encryption. One such device comprising multiple subsystems is being developed at the Vlatacom Institute. One of its main subsystems is the routing system that supports GRE tunneling. The GRE tunneling solution should be absolutely safe and implemented on low-cost hardware. This paper presents an implementation of GRE tunnel support on low-cost routing system on module (SoM) which is under development.","PeriodicalId":277553,"journal":{"name":"2022 30th Telecommunications Forum (TELFOR)","volume":"111 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":"127102577","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}