2021 16th International Conference on Telecommunications (ConTEL)最新文献_第2页

An Application Programming Interface for Advanced Analytics of Contextually Enriched Automotive Data 上下文丰富的汽车数据高级分析的应用程序编程接口

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495964

Hrvoje Vdovic, Jurica Babic, V. Podobnik

{"title":"An Application Programming Interface for Advanced Analytics of Contextually Enriched Automotive Data","authors":"Hrvoje Vdovic, Jurica Babic, V. Podobnik","doi":"10.23919/ConTEL52528.2021.9495964","DOIUrl":"https://doi.org/10.23919/ConTEL52528.2021.9495964","url":null,"abstract":"The amount of data generated by vehicles has increased in recent years. Automotive manufacturers employ data processing and analysis to gain insights from the data they collect from vehicles. Contextually enriching vehicle-generated data with information describing location, weather and traffic is a way to generate even more insights into driver behaviour profiling and transportation sustainability. As the contextually enriched automotive data is usually stored in big data storage platforms, a middleware solution is needed to provide an abstraction layer for the stored data. Application programming interfaces (APIs) are commonly used as a bridge between the data consumers and the collected data. This paper describes one such API for advanced analytics of contextually enriched automotive data. The collection, contextual enrichment and data model of the data offered by the API is shown, along with the APIs architecture and available functionalities. To show the usability of the API, two use cases from the automotive domain are demonstrated: (i) contextually enriched automotive data visualization; and (ii) eco-efficient driving pattern evaluation.","PeriodicalId":269755,"journal":{"name":"2021 16th International Conference on Telecommunications (ConTEL)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134171675","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

[ConTEL 2021 Front cover] [ConTEL 2021封面]

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/contel52528.2021.9495957

引用次数: 0

Anomaly Correction in Time Series Data for Improved Forecasting 时间序列数据异常校正改进预测

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495986

Dominik Ostroski, Karlo Slovenec, Ivona Brajdic, M. Mikuc

引用次数: 0

Using Approximation of Standard Deviation and Variance in Flow Features for Efficient Intrusion Detection 基于流特征标准差和方差近似的高效入侵检测

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495962

Dora Pušelj, Lovro Katić, Dominik Ostroski, Ivona Brajdic, Karlo Slovenec

引用次数: 0

An Overview of Security Aspects of IoT Communication Technologies for Smart Agriculture 智能农业物联网通信技术安全概述

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495985

K. Grgic, Anita Pejković, Matko Zrnic, Josip Spisic

引用次数: 5

Investigation of the Relationship between Subjective and Objective Video Quality Metrics for Multiparty Video Calls on Mobile Devices 移动设备上多方视频通话主客观视频质量指标关系的研究

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495992

Dunja Vučić, Lea Skorin-Kapov

{"title":"Investigation of the Relationship between Subjective and Objective Video Quality Metrics for Multiparty Video Calls on Mobile Devices","authors":"Dunja Vučić, Lea Skorin-Kapov","doi":"10.23919/ConTEL52528.2021.9495992","DOIUrl":"https://doi.org/10.23919/ConTEL52528.2021.9495992","url":null,"abstract":"Today, various solutions and configurations exist for enabling audiovisual communications. One of the main driving forces has been the evolution of the technologies and APIs related to the open source WebRTC standards, enabling browser-to-browser real-time communication with built-in real-time audio and video functions without requiring any plugins. However, given the strict delay and high bandwidth requirements associated with video conferencing services, along with variable mobile network resource availability and limited mobile end user device capabilities, challenges arise in terms of setting and adapting video encoding parameters so as to achieve acceptable end-user perceived quality. In this paper, we extend our previous studies with further exploration of the impact of different video encoding parameters on perceived video quality. Furthermore, we focus on investigating the relationship between subjective video quality ratings and selected objective video quality metrics (namely blurriness and blockiness) to determine to what extent objective metrics correlate with subjective scores in the specific context of multiparty video calls on mobile devices. Our findings, reported based on the results of a user study (n=27), indicate that perceived video quality has very strong and strong correlation with objective blockiness and blurriness values, respectively.","PeriodicalId":269755,"journal":{"name":"2021 16th International Conference on Telecommunications (ConTEL)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127757413","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

Channel Emulation of Satellite-to-Ground APD-based FSO Link in the Presence of Atmospheric Turbulence Fading 大气湍流衰落条件下基于apd的星地FSO链路信道仿真

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495967

H. Ivanov, Ziad Hatab, E. Leitgeb

{"title":"Channel Emulation of Satellite-to-Ground APD-based FSO Link in the Presence of Atmospheric Turbulence Fading","authors":"H. Ivanov, Ziad Hatab, E. Leitgeb","doi":"10.23919/ConTEL52528.2021.9495967","DOIUrl":"https://doi.org/10.23919/ConTEL52528.2021.9495967","url":null,"abstract":"Free Space Optics (FSO) is emerging frontier technology in the field of ground-space communication that offers significant benefits in direction of expanding the information bandwidth. Wireless optical links are challenged by atmospheric weather processes and especially atmospheric turbulence, which is solely addressed in the current work. Considering atmospheric channel prototyping and turbulence simulations, laboratory characterization of FSO feeder links allowing tests of high-end components and technologies is carried out. In order to evaluate satellite-to-ground optical downlinks using a state-of-the-art APD receiver with Trans-Impedance Amplifier (TIA), self-developed FSO channel emulator implementing optical-fiber-based variable attenuator is utilized. Furthermore, the input scintillation data are modelled based on vast atmospheric radiosonde observation databases together with applying Log-normal and Gamma-Gamma FSO channel modelling. This leads to precise characterization of the used APD-TIA photodetector under test whose performance is measured with a high resolution oscilloscope and a bit error rate tester. Consequently, by means of this proof of concept, atmospheric scintillations and their negative influence over satellite-to-ground laser communication scenarios are evaluated without involving real near-Earth test campaigns.","PeriodicalId":269755,"journal":{"name":"2021 16th International Conference on Telecommunications (ConTEL)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124627921","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

Rapid Plant Development Modelling System for Predictive Agriculture Based on Artificial Intelligence 基于人工智能的预测农业植物快速发育建模系统

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495972

V. Lešić, Hrvoje Novak, Marko Ratkovic, M. Zovko, D. Lemić, S. Skendžić, Jelena Tabak, Marsela Polic, M. Orsag

{"title":"Rapid Plant Development Modelling System for Predictive Agriculture Based on Artificial Intelligence","authors":"V. Lešić, Hrvoje Novak, Marko Ratkovic, M. Zovko, D. Lemić, S. Skendžić, Jelena Tabak, Marsela Polic, M. Orsag","doi":"10.23919/ConTEL52528.2021.9495972","DOIUrl":"https://doi.org/10.23919/ConTEL52528.2021.9495972","url":null,"abstract":"Actual and upcoming climate changes will evidently have the largest impact on agriculture crops cultivation in terms of reduced harvest, increased costs, and necessary deviation from the traditional farming. The aggravating factor for the successful applications of precision and predictive agriculture is the lack of big data, due to slow, year-round cycles of crops, as a prerequisite for further analysis and modelling. The goal of the system we propose is to enable rapid collection of data with respect to various climate conditions, which are artificially created and permuted in the encapsulated design, and correlated with plant development identifiers. The design is equipped with a large number of sensors and connected to the central database in a computer cloud. Such accumulated data is exploited to develop mathematical models of wheat in different growth stages by applying the concepts of artificial intelligence and utilize them for prediction of crop development and harvest. The paper presents a work in progress where the developed models will be publicly and interactively used through a portal for prediction of plant development in real and hypothetical climate conditions, with accumulated and archived feedback from farmers as additional data for tuning of the developed models.","PeriodicalId":269755,"journal":{"name":"2021 16th International Conference on Telecommunications (ConTEL)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117226865","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: 4

Level Crossing Rate of Next Generation Wireless Systems with Selection Combining in the Presence of k-µ Fading and Interference: Derivation and Simulation k- μ衰落和干扰下选择组合下一代无线系统的平交速率:推导与仿真

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495974

D. Krstić, S. Suljovic, N. Petrovic, Z. Popovic, M. Stefanovic

{"title":"Level Crossing Rate of Next Generation Wireless Systems with Selection Combining in the Presence of k-µ Fading and Interference: Derivation and Simulation","authors":"D. Krstić, S. Suljovic, N. Petrovic, Z. Popovic, M. Stefanovic","doi":"10.23919/ConTEL52528.2021.9495974","DOIUrl":"https://doi.org/10.23919/ConTEL52528.2021.9495974","url":null,"abstract":"In this article, level crossing rate (LCR) of new generation wireless communication system with selection combining (SC) receiver, with an arbitrary number of branches, will be evaluated. The received signal suffers from short-term fading and co-channel interference (CCI), where both are κ-μ distributed. SC receiver is used to reduce fading influence to the system performance. For described interference, LCR of the signal to interference ratio (SIR) at the output of SC receiver will be derived. From obtained expression for LCR, average fade duration (AFD) of the proposed telecommunication system can be calculated. The impact of fading parameters on the LCR will be analyzed. Thereafter, the Graphics Processing Unit (GPU) accelerated simulation and linear optimization for planning an optimal 5G mobile network within a smart city will be implemented. This program provides significantly faster calculation of system performance, such as LCR, for the wireless channels under the influence of such defined obstructions.","PeriodicalId":269755,"journal":{"name":"2021 16th International Conference on Telecommunications (ConTEL)","volume":"338 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133118817","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

Geometry from Thin Air: Theremin as a Playful Learning Device 来自稀薄空气的几何:特雷门作为一种有趣的学习设备

2021 16th International Conference on Telecommunications (ConTEL) Pub Date : 2021-06-30 DOI: 10.23919/ConTEL52528.2021.9495979

D. Čoko, Lea Dujić Rodić, T. Perković, P. Šolić

引用次数: 4