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2014 11th International Symposium on Electronics and Telecommunications (ISETC)最新文献

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Active measurement of the available transfer rate used in an algorithm for generalized assignment problem 一种广义分配问题的有效传输速率主动测量算法
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010770
Iustin Alexandru Ivanciu, A. B. Rus, V. Dobrota, J. Domingo-Pascual
{"title":"Active measurement of the available transfer rate used in an algorithm for generalized assignment problem","authors":"Iustin Alexandru Ivanciu, A. B. Rus, V. Dobrota, J. Domingo-Pascual","doi":"10.1109/ISETC.2014.7010770","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010770","url":null,"abstract":"This paper proposes a solution for active measurement of the Available Transfer Rate needed in a multi-tunnel architecture with a smart mobile router offering uninterrupted services for its wireless customers. It simultaneously uses several wireless/mobile access networks to the Internet in order to reach the service continuity gateway located somewhere in a broadband network. This customer-oriented approach uses the measurements to select the tunnels between the router and the gateway. Furthermore an algorithm for solving the Generalized Assignment Problem minimizes the costs. The allocation decision must be taken once every second in order to obtain the minimum possible cost.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126863772","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
DVB demodulation in presence of analogic interferer 模拟干扰下的DVB解调
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010788
S. Andrei, Alexa Florin, Petrita Teodor, Silaghi Helga, Silaghi A. Marius
{"title":"DVB demodulation in presence of analogic interferer","authors":"S. Andrei, Alexa Florin, Petrita Teodor, Silaghi Helga, Silaghi A. Marius","doi":"10.1109/ISETC.2014.7010788","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010788","url":null,"abstract":"This paper deals with interference between digital transmission and various signals. We performed intentional interference to DVB-C and DVB-T real signals in order to evaluate the effect of a generic interferer over received BER. The chosen interferers were a FM signal and an analogic TV signal, superposed over the whole 8 MHz channel. We have extensively tested the effects of these signals over DVB-T and DVB-C channel as additive noise. Our main result was that for the same injected power in channel, Gaussian noise leads to worst SNR deterioration. We also pointed out the differences between OFDM and non-OFDM DVB signals behavior in case of an interference.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123145390","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
The core functionality of a proposed hybrid network performance simulator 提出的混合网络性能模拟器的核心功能
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010778
Laurentiu Boicescu, V. Croitoru
{"title":"The core functionality of a proposed hybrid network performance simulator","authors":"Laurentiu Boicescu, V. Croitoru","doi":"10.1109/ISETC.2014.7010778","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010778","url":null,"abstract":"The paper presents the core functionality of a new simulator (named Hybrid Network Performance Simulator) that successfully combines Queueing Networks and Petri Nets models into the new proposed formal world of hybrid networks. Unlike the previous proposal of a hierarchical combination of Queueing and Petri Nets analysed in isolation, hybrid nets allow the communication between the two types of networks, thus increasing the complexity and accuracy of models.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116326078","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
Economics of a small-scale, grid-connected PV system in Western Romania: An LCoE analysis 罗马尼亚西部一个小规模并网光伏系统的经济性:LCoE分析
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010734
A. De Sabata, D. Margineanu, D. Jovanović, I. Luminosu, Simona Ilie, D. Krstić
{"title":"Economics of a small-scale, grid-connected PV system in Western Romania: An LCoE analysis","authors":"A. De Sabata, D. Margineanu, D. Jovanović, I. Luminosu, Simona Ilie, D. Krstić","doi":"10.1109/ISETC.2014.7010734","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010734","url":null,"abstract":"PV power systems have gained much attention in the last decades due to the clean operation and potential benefits in fossil fuel and greenhouse gas sparings. An economic analysis of grid-connected, small-scale, residential PV systems is proposed, based on the levelized cost of energy is proposed. Economy in gas emission is also estimated. All calculations rely on measured radiation and energy production data in the western part of Romania. Results indicate that a coherent policy of promotion is necessary for widespreading of residential grid-connected PV systems.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132556619","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
An accurate average energy detection algorithm for spectrum sensing in cognitive radio systems 一种用于认知无线电系统频谱感知的精确平均能量检测算法
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010766
Cosmina-Valentina Nastase, A. Martian, C. Vladeanu, I. Marghescu
{"title":"An accurate average energy detection algorithm for spectrum sensing in cognitive radio systems","authors":"Cosmina-Valentina Nastase, A. Martian, C. Vladeanu, I. Marghescu","doi":"10.1109/ISETC.2014.7010766","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010766","url":null,"abstract":"Spectrum scarcity became a serious problem in recent years, due to the multitude of communication systems requiring frequency resources. Cognitive Radio (CR) technology offers a solution by allowing unlicensed users to access licensed frequency bands. Any CR equipment should perform a spectrum sensing process in order to detect the presence of the licensed users. Several sensing methods are available, including the energy detection method. In this paper, we enhance the accuracy of the previously proposed Improved Energy Detection (IED) algorithm by removing the current observation event from the computation of the average energy. Therefore, these two variables become statistically independent, which in turn, provide a more Accurate Average Energy Detection (AAED). The Receiver Operating Characteristic (ROC) performances of the new AAED algorithm are estimated by means of simulations and compared with the ROCs obtained for the IED algorithm. The simulations confirm the superiority of the AAED algorithm as compared to IED, by more than 1.5% in terms of detection probability.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125233135","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
Robotic arm autonomous movement in 3D space using stereo image recognition in Linux 在Linux中使用立体图像识别的机械臂在三维空间中的自主运动
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010792
R. Szabó, A. Gontean
{"title":"Robotic arm autonomous movement in 3D space using stereo image recognition in Linux","authors":"R. Szabó, A. Gontean","doi":"10.1109/ISETC.2014.7010792","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010792","url":null,"abstract":"This paper presents a robotic arm autonomous movement in the 3D space using image recognition techniques. The aim of the paper is to present the used algorithm which does the movement calculations. Not too many robotic arms have cameras which control them, most of the robotic arms have cameras which recognize the targeted object, but not the arm it's self. This algorithm uses not one, but two cameras to control the robotic arm, which makes the application even more interesting. The image recognition is done using the OpenCV toolkit included in C++ programming language on Ubuntu Linux operating system. The movement calculation is done in real-time using image recognition. The used robotic arm is an AL5A Robotic arm from Lynxmotion, but the movement computation algorithm can be used on any type of robotic arm.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133068291","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
Automatic extraction of salient objects in 3D stereoscopic videos 三维立体视频中显著目标的自动提取
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010794
Ruxandra Tapu, B. Mocanu, E. Ţapu
{"title":"Automatic extraction of salient objects in 3D stereoscopic videos","authors":"Ruxandra Tapu, B. Mocanu, E. Ţapu","doi":"10.1109/ISETC.2014.7010794","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010794","url":null,"abstract":"For 3D stereoscopic videos the depth perception represents an important factor that affects the human visual attention much more than any motion or texture contrast existent in a traditional 2D videos. In this context, the present paper addressed the issue of stereoscopic visual attention models designed to detect salient objects in 3D videos. We propose representing the image sequence as a 2D video stream and its associated depth maps. The technique starts by combining a spatiotemporal attention model with a disparity map. The depth map offers important information about the objects position in space and helps us estimating their relative distance to the video camera. The proposed method is evaluated on a set of ten 3D video streams and can be considered efficient and robust.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123463507","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
Characterization of LEO satellites through ground-based Doppler observations 通过地基多普勒观测对低轨道卫星进行表征
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010773
P. Dascal, P. Dolea, T. Palade, O. Cristea
{"title":"Characterization of LEO satellites through ground-based Doppler observations","authors":"P. Dascal, P. Dolea, T. Palade, O. Cristea","doi":"10.1109/ISETC.2014.7010773","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010773","url":null,"abstract":"This paper presents some practical aspects regarding the characterization of satellite's orbit through ground-based Doppler observations. The monitoring focused on receiving telemetry signals from active university satellites placed on low-altitude circular orbits, which operate in the UHF amateur radio band. The experimental data was used for satellite orbital analysis with the main purpose of estimating basic orbital parameters of a LEO (Low Earth Orbit) satellite. The obtained data (Doppler curves) over multiple passes was used in order to estimate the orbital period, and from it, to derive other orbital parameters like altitude and velocity.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117179914","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
Network protocol design for persistent performance routing 持久性能路由的网络协议设计
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010775
S. Orzen
{"title":"Network protocol design for persistent performance routing","authors":"S. Orzen","doi":"10.1109/ISETC.2014.7010775","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010775","url":null,"abstract":"This paper presents the design methodology and abstraction of network elements for creating reliable persistent routes. Persistent routing is introduced in section one with it's problem definition through network elements and their respective functions, having section two as a continuation for representing the networking problem through performance representations. Being a new protocol, defined with performances compared to existing technology abilities that are misleading quality of service accuracy, section three represents causality and applicability for reaching the communication goal, in a simulated queuing environment. Section four concludes the contributions of this article, having the protocol specification represented by performance measures which carry the data transmission process reliability design.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124900514","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
A new digital image resizing method based on wavelets 一种新的基于小波的数字图像调整方法
2014 11th International Symposium on Electronics and Telecommunications (ISETC) Pub Date : 2014-11-01 DOI: 10.1109/ISETC.2014.7010791
Paul Gajitzki
{"title":"A new digital image resizing method based on wavelets","authors":"Paul Gajitzki","doi":"10.1109/ISETC.2014.7010791","DOIUrl":"https://doi.org/10.1109/ISETC.2014.7010791","url":null,"abstract":"We present and compare in this paper different image resizing methods. We review the resizing methods based on interpolation and we also present some image scaling methods using the wavelet transform. We show by Matlab simulations the superiority of resizing methods based on wavelet transforms.","PeriodicalId":360676,"journal":{"name":"2014 11th International Symposium on Electronics and Telecommunications (ISETC)","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132019261","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
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