2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)最新文献

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On the development of energy-efficient communications for marine monitoring deployments 关于开发用于海洋监测部署的节能通信
Giannis Kazdaridis, Polychronis Symeonidis, Ioannis Zographopoulos, T. Korakis, K. Klun, N. Kovač
{"title":"On the development of energy-efficient communications for marine monitoring deployments","authors":"Giannis Kazdaridis, Polychronis Symeonidis, Ioannis Zographopoulos, T. Korakis, K. Klun, N. Kovač","doi":"10.1109/TELSKS.2017.8246278","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246278","url":null,"abstract":"In this paper we present a novel architecture for enabling on-line communication with marine environment monitoring deployments. We rely on a set of communication technologies that range from IoT related low data rate communication standards to the widely adopted Wi-Fi and LTE protocols that are able to support bandwidth demanding applications. To achieve energy-efficient results we turn off all the power-hungry interfaces and peripherals, while maintaining a low-power interface active, dedicated to control the rest of the components. Finally, we present the installation of the developed system in the Vida oceanographic buoy, in Slovenia and evaluate our device in terms of power consumption.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122426893","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: 8
Performance evaluation of throughput averaging methods for the proportional fair algorithm in indoor mobile networks 比例公平算法吞吐量平均方法在室内移动网络中的性能评价
V. Stoynov, Z. Valkova-Jarvis
{"title":"Performance evaluation of throughput averaging methods for the proportional fair algorithm in indoor mobile networks","authors":"V. Stoynov, Z. Valkova-Jarvis","doi":"10.1109/TELSKS.2017.8246270","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246270","url":null,"abstract":"Intelligent radio resource distribution techniques play an important role in improving the overall performance of next-generation networks. An efficient scheduling algorithm can help to achieve higher data rates, lower latency and increased fairness for users. This paper evaluates the performance of an indoor network, simulated using the Realistic Indoor Environment Generator (RIEG), when 11 different Throughput Averaging Methods (TAMs) for the Proportional Fair (PF) algorithm are used. The TAMs are compared by using a Comparative Factor (CF) that simultaneously takes into account the average throughput of the indoors users, the fairness and the outage ratio. Simulation results show that when improvement in fairness is the main goal, the recently-proposed low-complexity Median Method (MM) and Quartile Mean Method (QMM) are major rivals to the widely-used Arithmetic Mean Method (AMM) and Original Mean Method (OMM), while the Modified Quartile Mean Method (MQMM) is the leader when the average throughput of indoor users is the most important factor.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121160078","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
Linear fuzzy space with applications 线性模糊空间及其应用
Đorđe Obradović, Z. Konjovic, E. Pap
{"title":"Linear fuzzy space with applications","authors":"Đorđe Obradović, Z. Konjovic, E. Pap","doi":"10.1109/TELSKS.2017.8246259","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246259","url":null,"abstract":"This paper presents theoretical foundations of the linear fuzzy space, which allows for a simple but yet efficient modelling and representation of imprecise data. We also present applications of this theory to diversiform problems that call for imprecise data manipulation. The presented applications pertain to geo-spatial problems, medical imaging/diagnostics, and social networks analysis.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121160677","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 novel method for calculating radiation patters of phased array antennas with an icreased interelement spacing 一种计算增大元件间距相控阵天线辐射方向图的新方法
V. Gusevsky, A. Klementyeva, A. Komarov
{"title":"A novel method for calculating radiation patters of phased array antennas with an icreased interelement spacing","authors":"V. Gusevsky, A. Klementyeva, A. Komarov","doi":"10.1109/TELSKS.2017.8246301","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246301","url":null,"abstract":"A new technique for calculating the radiation patterns of linear equally spaced phased array antennas consisting of highly directional antenna elements with an increased interelement spacing is considered. The concept of point interpretation of the elements of a set of highly directional antennas turns out to be untenable, since the phase characteristic of each element in the far zone can be considered quasi-constant only in the angular limits of the width of the radiation pattern of the element.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132642258","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
Software systems for processing and analysis of big data and event streams 用于处理和分析大数据和事件流的软件系统
Aleksandra I. Stojnev, D. Stojanović
{"title":"Software systems for processing and analysis of big data and event streams","authors":"Aleksandra I. Stojnev, D. Stojanović","doi":"10.1109/TELSKS.2017.8246245","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246245","url":null,"abstract":"Advances in sensor technologies, mobile positioning, IoT and wireless communications have led to development of applications for data collection, processing, analysis, mining and visualization for the purposes of real time responses and decision support, but have also brought new challenges to processing large amount of data in a real time. Various software systems are developed to provide a set of methods, technologies, algorithms and index structures for effective monitoring, processing, analysis and mining of continuous flow of data and events. This paper reviews recent developments in the field of data streams processing and analysis, gives an overview of existing systems and technologies, and demonstrates development of a stream processing application based on the contemporary stream processing frameworks.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128106933","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
The distributed denial of service attacks (DDoS) prevention mechanisms on application layer 应用层的分布式拒绝服务攻击防范机制
Karuna S. Bhosale, M. Nenova, G. Iliev
{"title":"The distributed denial of service attacks (DDoS) prevention mechanisms on application layer","authors":"Karuna S. Bhosale, M. Nenova, G. Iliev","doi":"10.1109/TELSKS.2017.8246247","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246247","url":null,"abstract":"As DDOS attacks interrupt internet services, DDOS tools confirm the effectiveness of the current attack. DDOS attack and countermeasures continue to increase in number and complexity. In this paper, we explore the scope of the DDoS flooding attack problem and attempts to combat it. A contemporary escalation of application layer distributed denial of service attacks on the web services has quickly transferred the focus of the research community from conventional network based denial of service. As a result, new genres of attacks were explored like HTTP GET Flood, HTTP POST Flood, Slowloris, R-U-Dead-Yet (RUDY), DNS etc. Also after a brief introduction to DDOS attacks, we discuss the characteristics of newly proposed application layer distributed denial of service attacks and embellish their impact on modern web services.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124844762","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: 26
Objectives and performance of H.265/HEVC video coding standard H.265/HEVC视频编码标准的目标和性能
U. Burnik
{"title":"Objectives and performance of H.265/HEVC video coding standard","authors":"U. Burnik","doi":"10.1109/TELSKS.2017.8246226","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246226","url":null,"abstract":"The article describes improvements in new video compression algorithm H.265/HEVC over predecessors. The efficiency of the algorithm has been verified on a test video file in multiple standard resolutions. The evaluation results indicate that the algorithm satisfies the goal of increasing the coding efficiency for high-resolution video sequences by 50% over previous algorithms.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123816502","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
Analysis of possible Wi-Fi interferences of wireless communications implemented in vehicular environments 分析在车载环境中实现无线通信可能产生的Wi-Fi干扰
Răzvan Andrei Gheorghiu, V. Iordache, I. Bădescu
{"title":"Analysis of possible Wi-Fi interferences of wireless communications implemented in vehicular environments","authors":"Răzvan Andrei Gheorghiu, V. Iordache, I. Bădescu","doi":"10.1109/TELSKS.2017.8246273","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246273","url":null,"abstract":"This paper aims to assess the possibility to implement low power, short distance standard communications technologies and cheaper technology for dedicated applications, such as data dynamic data collection, data distribution, or messaging, for better information of vehicles (and, in general, traffic participants). The main concern was to determine the already existing communications that are most probable to be found in the field. As Wi-Fi is the most used communication inside the buildings, but is also likely to be found in vehicles (for communication between their equipment of just used by mobile devices inside of them) the authors have considered that this should be the first step in determining characteristics of the wireless communication environment near the road network. Therefore, specific measurements regarding communications interferences and Wi-Fi channel density have been performed in some representative road junctions in Bucharest and along the most crowded public transport routes (buses and trams), with the results being useful in choosing proper ways for employing new communications with little chance of interferences.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126739919","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
Comments on objective quality assessment of JPEG images with visible differences 对存在明显差异的JPEG图像的客观质量评价的评论
Boban P. Bondzulic, B. Pavlović, M. Andric, V. Petrovic
{"title":"Comments on objective quality assessment of JPEG images with visible differences","authors":"Boban P. Bondzulic, B. Pavlović, M. Andric, V. Petrovic","doi":"10.1109/TELSKS.2017.8246323","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246323","url":null,"abstract":"We analyse the results of a comprehensive collection of objective quality metrics for high definition compressed visual content. The investigation provides guidelines that allow a reliable JPEG image quality assessment, and therefore the development of perceptual-based image/video coding standards. We show on a comprehensive, recent subjective dataset with visible differences that visual information fidelity, most apparent distortion, and gradient-based objective measures have reached the best agreement with the subjective quality scores, where contrast is preferred according to the luminance and structure changes.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"57 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126127286","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
Thermal characterization of high-power GaN HEMTs up to 65 GHz 65 GHz高功率GaN hemt的热特性
A. Petrocchi, G. Crupi, V. Vadalà, G. Avolio, A. Raffo, D. Schreurs, A. Caddemi, G. Vannini
{"title":"Thermal characterization of high-power GaN HEMTs up to 65 GHz","authors":"A. Petrocchi, G. Crupi, V. Vadalà, G. Avolio, A. Raffo, D. Schreurs, A. Caddemi, G. Vannini","doi":"10.1109/TELSKS.2017.8246254","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246254","url":null,"abstract":"This study focuses on temperature dependent characterization of a 0.25×1500 μm2 GaN HEMT. The impact of the ambient temperature on the microwave performance is reported and discussed. It is achieved that the reduction of the average electron velocity with increasing temperature leads to a remarkably degradation of the main figures of merit.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121747479","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
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