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MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference最新文献

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Static routing and wavelength assignment in wavelength routed WDM networks 波长路由WDM网络中的静态路由和波长分配
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653194
N. Skorin-Kapov, M. Kos
{"title":"Static routing and wavelength assignment in wavelength routed WDM networks","authors":"N. Skorin-Kapov, M. Kos","doi":"10.1109/MELCON.2006.1653194","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653194","url":null,"abstract":"In wavelength routed WDM optical networks, all-optical connections, called lightpaths, are established between pairs of nodes. Demands to set us lightpaths can be static, dynamic or scheduled. This paper deals with the problem of routing and wavelength assignment (RWA) of static lightpath demands which means that the set of demands is known a priori. This NP-complete problem has been widely studied in literature and several heuristic algorithms have been proposed. The most common objective is to minimize the number of wavelengths used. Suggested is a simple and fast algorithm for the RWA problem motivated by an efficient existing algorithm for the same problem. Testing on a series of random networks indicates that these modifications yield solutions superior in quality to those obtained by the previously suggested algorithm","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124403352","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: 7
Prediction of harmonic currents of PV-inverters using measured solar radiation data 利用实测太阳辐射数据预测光伏逆变器的谐波电流
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653233
J. Schlabbach, L. Kammer
{"title":"Prediction of harmonic currents of PV-inverters using measured solar radiation data","authors":"J. Schlabbach, L. Kammer","doi":"10.1109/MELCON.2006.1653233","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653233","url":null,"abstract":"A simulation program has been developed to simulate the harmonic current emission of photovoltaic systems under different solar radiation conditions, resulting in different generation scenarios. The simulation is based on measured data of temperature and global solar radiation and can be applied to any site conditions. The result indicated an excellent correspondence between simulation and measurement results. The harmonic currents differ much under different generation conditions, e.g. a great difference was recognized between high generation (summer) and low generation (winter). The assessment for grid connection of PV-converters shall take account of this fact. It is suggested to use the simulation results instead of using the worst conditions as per IEC 61000-3-12","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114359022","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: 19
A Gray-Code Current Mode ADC Structure 一种灰码电流模式ADC结构
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653029
B. Wilamowski, M. Sinangil, G. Dundar
{"title":"A Gray-Code Current Mode ADC Structure","authors":"B. Wilamowski, M. Sinangil, G. Dundar","doi":"10.1109/MELCON.2006.1653029","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653029","url":null,"abstract":"Analog to digital converters (ADC) are one of the most critical blocks in the area of electronics. This paper presents two new circuits for Gray-code current-mode analog to digital conversion which employs absolute value operation. The implementations of two different 5-bit converter circuits are discussed in this paper. 0.25 mum CMOS technology with 5 V power supply voltage is used for the circuits","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114577647","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: 9
A flexible instruction generation framework for extending embedded processors 用于扩展嵌入式处理器的灵活指令生成框架
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653052
N. Kavvadias, S. Nikolaidis
{"title":"A flexible instruction generation framework for extending embedded processors","authors":"N. Kavvadias, S. Nikolaidis","doi":"10.1109/MELCON.2006.1653052","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653052","url":null,"abstract":"Modern platform-based design involves the domain-specific extension of embedded processors to fit customer requirements. To accomplish this task, the possibilities offered by recent extensible processors for their instruction set and microarchitectural customization have to be exploited. In this paper, a design approach that encapsulates automated workload characterization and highly-controllable instruction and application-specific functional unit (AFU) generation is utilized for fast extension space exploration of embedded processors. It is proved that a relatively small number of unique AFUs is needed in order to support embedded applications from the MiBench and Powerstone suites. It is possible to achieve 1.8times to 6.8times performance improvements although further possibilities such as subword parallelization are not currently regarded","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114942010","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
Signaling and intelligent large-scale network dimensioning and planning 信令与智能大规模网络的尺寸规划
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653202
A. Chukarin, N. Bobrikov, M. Luzgachev
{"title":"Signaling and intelligent large-scale network dimensioning and planning","authors":"A. Chukarin, N. Bobrikov, M. Luzgachev","doi":"10.1109/MELCON.2006.1653202","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653202","url":null,"abstract":"Russian national operators provide intelligent network (IN) services to the popular majority of Russia. This results in strong growth in signaling traffic. We develop an IN traffic model along with the method for calculation and analysis of signaling traffic generated by intelligent services. In this paper we investigate the principles of IN functionality using \"freephone\" service and consider the developed method and its application to a network fragment. Finally, we present the numerical results of signaling load calculation generated by IN calls for the considered example","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116917755","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
Mean-square-error reduction for quantized FIR filters 量化FIR滤波器的均方误差减小
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653040
J. Izydorczyk
{"title":"Mean-square-error reduction for quantized FIR filters","authors":"J. Izydorczyk","doi":"10.1109/MELCON.2006.1653040","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653040","url":null,"abstract":"In the article the author discuss fundamental properties of canonic signed digit (CSD) fixed point representation of numbers. Although properties of CSD format are well known from literature, published proofs are tedious and occupy lot of columns of text. Here the problem has been reduced to the problem of combinatorial number. The tool for this reduction is a \"drawer lemma\" - lemma about the distribution of identical objects in drawers or holes. Next there is proposed an algorithm for the computation and quantization of canonic signed digit (CSD) coefficients in a constant-coefficient multiplierless FIR filter. The algorithm is proven to be optimal in the mean square error sense. The algorithm is recurrent and unexpectedly simple, so it can be easily implemented inside any mathematical program as MATLAB or MATHCAD","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116972868","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
Channel Modeling and Simulation of a Ka-band Videoconferencing System ka波段视频会议系统的信道建模与仿真
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653175
R. Farrugia, C. J. Debono, P. Micallef
{"title":"Channel Modeling and Simulation of a Ka-band Videoconferencing System","authors":"R. Farrugia, C. J. Debono, P. Micallef","doi":"10.1109/MELCON.2006.1653175","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653175","url":null,"abstract":"The effect of propagation impairments phenomena is quite significant for systems operating in the Ka-band frequency range, resulting in a reduction in the end-to-end quality of a videoconferencing session. These systems generally utilize complex coding architectures, like the digital video broadcasting (DVB) standard, in order to maintain an acceptable quality of service (QoS) at low signal-to-noise ratios. Although these systems are finding more and more applications, the literature is still relatively poor in the description of models capable of representing such complex architectures. This paper proposes a videoconferencing channel model, developed in software, which can accurately model a complex videoconferencing system according to the DVB standard at the required quality and availability","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116461376","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
Higher-order spectra and independent component analysis used for identification and SNR enhancement of acoustic emission signals 用于声发射信号识别和信噪比增强的高阶光谱和独立分量分析
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653145
J. De la Rosa, I. Lloret, A. Moreno, R. Piotrkowski, J. Ruzzante, C. Puntonet, J. Górriz
{"title":"Higher-order spectra and independent component analysis used for identification and SNR enhancement of acoustic emission signals","authors":"J. De la Rosa, I. Lloret, A. Moreno, R. Piotrkowski, J. Ruzzante, C. Puntonet, J. Górriz","doi":"10.1109/MELCON.2006.1653145","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653145","url":null,"abstract":"Higher order statistics are used twofold: to characterize, and to enhance and to de-noise primary signals and their echoes in acoustic emission events occurring in samples of steel pipes under transversal strain. First, the characterization by diagonal bi-spectra is performed and it allows the spectral separation of the primary event from the secondary ones (echoes). Secondly, a cumulant-based independent component analysis is applied for blind sources separation in a low-SNR scenario. The method is first validated considering a synthetic of acoustic signals. Then, the developed algorithm is applied to a sequence of quartets of primary bursts and their first three echoes. The denoising capability of ICA is assessed by comparing the power spectra of the sources vs. the separated signals. Data were acquired by wide frequency-range transducers (100-800 kHz) and digitalized by a 2.5 MHz, 8-bit ADC","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123226652","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
Multi-ring network design tool 多环网络设计工具
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653196
M. Mikac, D. Mikac, M. Kos
{"title":"Multi-ring network design tool","authors":"M. Mikac, D. Mikac, M. Kos","doi":"10.1109/MELCON.2006.1653196","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653196","url":null,"abstract":"In this paper a ring based network design tool is described. The tool supports semi-automatic design of SDH ring based network with Ethernet over SDH capability. A need for specialized network optimization and design tools is always a hot topic among network professionals. Today telecommunication networks have very complex structure due to simultaneous deployment of different network technologies and classical layered network architecture is not applicable in realistic scenarios that are common today","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124066938","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
Long Stroke Linear Switched Reluctance Actuator Displacement With a Fuzzy Logic Controller 长行程线性开关磁阻执行器位移模糊控制器
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference Pub Date : 2006-05-16 DOI: 10.1109/MELCON.2006.1653311
A. Espirito Santo, M. Calado, C. Cabrita
{"title":"Long Stroke Linear Switched Reluctance Actuator Displacement With a Fuzzy Logic Controller","authors":"A. Espirito Santo, M. Calado, C. Cabrita","doi":"10.1109/MELCON.2006.1653311","DOIUrl":"https://doi.org/10.1109/MELCON.2006.1653311","url":null,"abstract":"Linear switched reluctance actuators (LSRA) possess simple construction due to the absence of windings on either the stator or translator parts, being those windings concentrated. That windings structure makes the LSRA to become an actuator with a fail-save system. However, usage of this kind of actuator is difficult because of their demanding control. The machine control difficulty results from the fact that the actuator is highly dependent on its complex magnetic circuit, which is also complex to model and simulate. Observing actuator force maps, one can conclude that the developed traction forces depend on both relative stator to translator positions and coils excitation current. Thus, some well-chosen positions can be considered as optimal positions to trigger a specific actuator phase. This paper proposes a method, based on fuzzy logic control strategy, to determine automatically the best positions to perform the switching of converter connected with the actuator phases. This proposed converter switching sequence allows the control of the LSRA for long distance displacement","PeriodicalId":299928,"journal":{"name":"MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124633309","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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