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2020 24th International Conference on Information Technology (IT)最新文献

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Evaluating spatial reuse in 802.11ax networks with interference threshold adjustment 基于干扰阈值调整的802.11ax网络空间复用评估
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070717
Nina Šepić, E. Kočan, M. Pejanović-Djurišić
{"title":"Evaluating spatial reuse in 802.11ax networks with interference threshold adjustment","authors":"Nina Šepić, E. Kočan, M. Pejanović-Djurišić","doi":"10.1109/IT48810.2020.9070717","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070717","url":null,"abstract":"The sixth generation of Wi-Fi standards, denoted as IEEE 802.11ax, is gathering research interest as the first Wi-Fi standard to address the Quality of Experience (QoE) in dense environments. Members of the Task Group AX have proposed several solutions for improving spectrum efficiency in high density scenarios. In this paper we analyze efficiency of Basic Service Set (BSS) color, one of those solutions proposed for spatial reuse and improvement of area throughput. Using ns-3 network simulator, we model a hotspot scenario consisting of 7 overlapping basic service sets, implementing BSS color to identify the source of detected transmission. Nodes in each BSS use two Carrier Sense Thresholds (CSTs) for sensing the channel, where the higher threshold value is being applied for detection of inter-BSS frames. We show that, by selecting higher threshold for detecting frames from other access points (foreign frames), spectrum efficiency can be improved and area throughput can be increased. However, if the value of this threshold is too high, it can have a counterproductive effect, as it increases interference and probability of error in reception. Therefore, we present the upper limit value of CST, which should not be exceeded in the presented communication scenario, as well as a range of threshold values that enables improvement of area throughput.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130453170","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: 3
Review of collaborative software applications and integration with standard collaboration tools 审查协作软件应用程序和与标准协作工具的集成
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070420
Mirko Miljanic, N. Zaric
{"title":"Review of collaborative software applications and integration with standard collaboration tools","authors":"Mirko Miljanic, N. Zaric","doi":"10.1109/IT48810.2020.9070420","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070420","url":null,"abstract":"Collaborative software or groupware applications have become crucial communication channels for numerous companies all over the world. Nowadays it's really hard to keep track of huge amount of data and information that even small enterprises deal with. Knowledge management also plays a significant role in the whole story. Assuming all this, it is essential to know how those applications can help speeding up processes in almost every company, as well as making employees more productive. This review introduces some notable software solutions and possibilities to integrate them with the email. Furthermore, it provides both the comparison between given solutions and suggestions on what types of businesses are suitable for some of these applications.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126911897","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
Identifying microservices using structured system analysis 使用结构化系统分析识别微服务
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070652
Tatjana Stojanović, Sasa Lazarevic, Milos Milic, I. Antović
{"title":"Identifying microservices using structured system analysis","authors":"Tatjana Stojanović, Sasa Lazarevic, Milos Milic, I. Antović","doi":"10.1109/IT48810.2020.9070652","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070652","url":null,"abstract":"In this article it will be presented how to identify microservices using structured system analysis. Structured system analysis describes all the system functions, data stores and algorithms of the functions. When all of the functions of the system are described, they can be grouped into microservices. These microservices should be loosely coupled and highly cohesive. Rules for grouping microservices will be presented. It will be shown not only how to declare functions as microservices but also how to decompose data stores, thus these microservices share-as-little-as-possible by having separate databases.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116230162","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: 6
Printed asymmetrical Sierpinski slot antenna for energy harvesting application 用于能量收集应用的印刷不对称Sierpinski槽天线
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070358
R. Čvorović, Luka Lazovic, V. Rubezic, Ana Jovanovic
{"title":"Printed asymmetrical Sierpinski slot antenna for energy harvesting application","authors":"R. Čvorović, Luka Lazovic, V. Rubezic, Ana Jovanovic","doi":"10.1109/IT48810.2020.9070358","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070358","url":null,"abstract":"This paper discusses the possibility of using bowtie slot antennas in energy harvesting applications. As energy harvesting is gaining more importance, new antenna designs with better performance are getting more research attention. In this paper, starting point is a simple bow tie slot antenna. By analyzing simulation results, two significant modifications are proposed in order to upgrade antenna performance at frequencies available for energy harvesting. In order to improve antenna's impedance and bandwidth, first modification is proposed- creating an asymmetrical bowtie shape. Furthermore, antenna is introduced to a fractal structure providing better results with major improvement in multifrequency operations and broadening bandwidth.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132647146","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: 3
A Private Blockchain Implementation Using Multichain Open Source Platform 利用 Multichain 开源平台实现私有区块链
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070689
Aida Ismailisufi, Tomo Popović, N. Gligoric, S. Radonjić, Stevan Sandi
{"title":"A Private Blockchain Implementation Using Multichain Open Source Platform","authors":"Aida Ismailisufi, Tomo Popović, N. Gligoric, S. Radonjić, Stevan Sandi","doi":"10.1109/IT48810.2020.9070689","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070689","url":null,"abstract":"The impact of digital transformation is becoming visible in every aspect of our lives. Digital transformation strategies mostly rely on disruptive technologies such as Internet of Things, augmented reality, artificial intelligence, and blockchain. Blockchain provides decentralized, immutable, and trustless database distributed across all participants and it was initially proposed as distributed ledger for digital cryptocurrency. However, besides in the finance sector, blockchain technology is considered to be a major innovation enabler in various industries. The paper describes an implementation of a private blockchain using the Multichain open source platform with possible application to agrifood use cases such as food tracking and tracing, product lifecycle management, and counterfeit prevention.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131439657","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: 25
The Use of Tesseract OCR Number Recognition for Food Tracking and Tracing Tesseract OCR数字识别在食品跟踪与追溯中的应用
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070558
Stevan Cakic, Tomo Popović, Stevan Sandi, S. Krco, A. Gazivoda
{"title":"The Use of Tesseract OCR Number Recognition for Food Tracking and Tracing","authors":"Stevan Cakic, Tomo Popović, Stevan Sandi, S. Krco, A. Gazivoda","doi":"10.1109/IT48810.2020.9070558","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070558","url":null,"abstract":"One of the most interesting enabling technologies for digital transformation is computer vision. Object and character recognition has already become very popular and it is used in everyday life. This research focuses on the use of computer vision to read serial numbers from wine labels in order to enable applications based on tracking and tracing of each individual wine bottle. After experimenting with several OCR tools, an open source software called Tesseract OCR engine was selected for the pilot solution. The paper discusses the implementation and image processioning that improved detection accuracy. The coding was done in the Python programming language. The solution code was tested using real-life like images of wine serial numbers. In addition, a custom built web-based evaluation tool was created and used for the interactive evaluation of the system.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123947011","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: 12
Montgomery Modular Arithmetic over Gaussian Integers 高斯整数上的Montgomery模运算
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070297
Malek Safieh, J. Freudenberger
{"title":"Montgomery Modular Arithmetic over Gaussian Integers","authors":"Malek Safieh, J. Freudenberger","doi":"10.1109/IT48810.2020.9070297","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070297","url":null,"abstract":"The Montgomery multiplication is an efficient method for modular arithmetic. Typically, it is used for modular arithmetic over integer rings to prevent the expensive inversion for the modulo reduction. In this work, we consider modular arithmetic over rings of Gaussian integers. Gaussian integers are subset of the complex numbers such that the real and imaginary parts are integers. In many cases Gaussian integer rings are isomorphic to ordinary integer rings. We demonstrate that the concept of the Montgomery multiplication can be extended to Gaussian integers. Due to independent calculation of the real and imaginary parts, the computation complexity of the multiplication is reduced compared with ordinary integer modular arithmetic. This concept is suitable for coding applications as well as for asymmetric key cryptographic systems, such as elliptic curve cryptography or the Rivest-Shamir-Adleman system.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116785640","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: 5
Reduction of Energy Consumption based on Replacement of Routers with SDN Switches 通过SDN交换机替换路由器降低能耗
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070464
S. Hadzovic, Irena Seremet, S. Mrdović, Samir Causevic
{"title":"Reduction of Energy Consumption based on Replacement of Routers with SDN Switches","authors":"S. Hadzovic, Irena Seremet, S. Mrdović, Samir Causevic","doi":"10.1109/IT48810.2020.9070464","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070464","url":null,"abstract":"Software Defined Networking (SDN) is a promising solution because of many advantages over the traditional network. Due to these advantages, SDN can be considered as a tool for energy efficiency in ICT (Information and Communication Technology) networks. In this paper, we have made a comparison between energy consumption in real IP/MPLS (Internet Protocol/Multi-Protocol Label Switching) network and designed SDN network. The results show that a significant reduction of energy consumption is achieved for a scenario with designed SDN solution.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129432833","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
Minimizing active power losses by incorporating Static Var Compensator (SVC) device into the power system 通过在电力系统中加入静态无功补偿器(SVC)来减少有功功率损耗
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070623
Katarina Kecojević, Ognjen Lukačević, M. Ćalasan, S. Mujović
{"title":"Minimizing active power losses by incorporating Static Var Compensator (SVC) device into the power system","authors":"Katarina Kecojević, Ognjen Lukačević, M. Ćalasan, S. Mujović","doi":"10.1109/IT48810.2020.9070623","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070623","url":null,"abstract":"In this paper, minimizing active power losses by incorporating Static Var Compensator (SVC) device into the power system is being investigated. The mentioned investigation is evaluated on the IEEE 24-bus and modified IEEE 24-bus systems. In this paper, modified version of IEEE 24-bus system is realized by connecting 15MW wind farm in node 5 of tested network. The optimal value of reactive power of SVC device and corresponding minimal power system losses are calculated by using program package General Algebraic Modeling System - GAMS. It is shown that the minimal value of the power system losses highly depends on SVC location in both analyzed cases, with or without wind farm in power system.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121752990","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
State Detection of Rotary Actuators Using Wavelet Transform and Neural Networks 基于小波变换和神经网络的旋转执行器状态检测
2020 24th International Conference on Information Technology (IT) Pub Date : 2020-02-01 DOI: 10.1109/IT48810.2020.9070503
S. Vujnovic, Ž. Đurović, A. Marjanović, Ž. Zečević, M. Micev
{"title":"State Detection of Rotary Actuators Using Wavelet Transform and Neural Networks","authors":"S. Vujnovic, Ž. Đurović, A. Marjanović, Ž. Zečević, M. Micev","doi":"10.1109/IT48810.2020.9070503","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070503","url":null,"abstract":"Rotary actuators are among the most commonly used machines in the industry and the algorithm for detecting the level of wear they are subjected to can prevent significant amount of unnecessary maintenance expenses. This paper proposes a new algorithm which can detect the state of the rotating machine using acoustic signals recorded in its vicinity. The algorithm uses a combination of wavelet transform and neural networks and is computationally inexpensive, so it can be implemented on a simple microcontroller. The testing has been done on real acoustic signals recorded in thermal power plant Kostolac in Serbia.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122482432","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
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