Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1347010
M. F. Cabrera, M. Arredondo, R. Ibanez, P. Argáiz
In order to become a commodity for the European society/economy, mobile solutions must provide the five main characteristics: ubiquity, transparency, fundamentality, universality and value governance. This new concept of mobility is called extreme mobility (XMOB). Facing this reality, the European Union has funded the XMOB (2002) an IST (information society technologies) project. XMOB joins the research groups (UPM, DIST), phone operators (Telefonica Data, Telefonica Moviles, INET), consultancy companies (DMR, DMR-IT), industry (PSA, EXEL, WK) and end users (SAMUR, SANITAS, 118 Geneva) to build a platform aimed to host the mobile applications with the following main features: multi- device/channel, multi-network, multi-user, multi-service (ASP-based model), multi-country (federated model) and open-standards (Java/J2EE compliant). The benefits and outputs of the platform are being validated through the development of two vertical applications (healthcare and logistics) involving 2G, 2.5G, 3G, satellite and multiple different devices types.
{"title":"Extreme mobility: developing a pan-European ASP oriented open mobile platform platform","authors":"M. F. Cabrera, M. Arredondo, R. Ibanez, P. Argáiz","doi":"10.1109/MELCON.2004.1347010","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1347010","url":null,"abstract":"In order to become a commodity for the European society/economy, mobile solutions must provide the five main characteristics: ubiquity, transparency, fundamentality, universality and value governance. This new concept of mobility is called extreme mobility (XMOB). Facing this reality, the European Union has funded the XMOB (2002) an IST (information society technologies) project. XMOB joins the research groups (UPM, DIST), phone operators (Telefonica Data, Telefonica Moviles, INET), consultancy companies (DMR, DMR-IT), industry (PSA, EXEL, WK) and end users (SAMUR, SANITAS, 118 Geneva) to build a platform aimed to host the mobile applications with the following main features: multi- device/channel, multi-network, multi-user, multi-service (ASP-based model), multi-country (federated model) and open-standards (Java/J2EE compliant). The benefits and outputs of the platform are being validated through the development of two vertical applications (healthcare and logistics) involving 2G, 2.5G, 3G, satellite and multiple different devices types.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130724371","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1348093
P. Miksa, S. Mijailović, Z. Vujasinovic, J. Kabouris, C. Vournas
This paper describes some aspects concerning the assessment of the secure transfer capability in the second synchronous UCTE zone. It presents the methodologies used to assess static security and reports on the results of studies carried out by EKC, HTSO and NTUA in order to calculate the transfer capabilities in the area and to detect any weak corridors under extreme network conditions. Possible ways of administrating the power transfers in the area are discussed as well.
{"title":"Evaluation of transfer capabilities in the 2nd UCTE zone","authors":"P. Miksa, S. Mijailović, Z. Vujasinovic, J. Kabouris, C. Vournas","doi":"10.1109/MELCON.2004.1348093","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1348093","url":null,"abstract":"This paper describes some aspects concerning the assessment of the secure transfer capability in the second synchronous UCTE zone. It presents the methodologies used to assess static security and reports on the results of studies carried out by EKC, HTSO and NTUA in order to calculate the transfer capabilities in the area and to detect any weak corridors under extreme network conditions. Possible ways of administrating the power transfers in the area are discussed as well.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132144500","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1346770
M. Drakaki, G. Fikos, S. Siskos
The modelling behaviour of FGMOS devices in the subthreshold region is investigated. Experimental and simulated ID-VGG, and gm/ID vs. log(ID) data for the standard CMOS 0.6 /spl mu/m process are compared. The BSIM3V3 and the advanced compact model, ACM are adopted to model the behaviour of the FGMOS transistors in the subthreshold region. Two different DC simulation macromodels are used for the DC simulation of the floating gate devices. The performance of the two MOSFET models and of the two DC simulation macromodels in modelling the FGMOS transistors in the subthreshold region is discussed.
{"title":"Subthreshold behaviour modelling of FGMOS transistors using the ACM and the BSIM3V3 models","authors":"M. Drakaki, G. Fikos, S. Siskos","doi":"10.1109/MELCON.2004.1346770","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1346770","url":null,"abstract":"The modelling behaviour of FGMOS devices in the subthreshold region is investigated. Experimental and simulated ID-VGG, and gm/ID vs. log(ID) data for the standard CMOS 0.6 /spl mu/m process are compared. The BSIM3V3 and the advanced compact model, ACM are adopted to model the behaviour of the FGMOS transistors in the subthreshold region. Two different DC simulation macromodels are used for the DC simulation of the floating gate devices. The performance of the two MOSFET models and of the two DC simulation macromodels in modelling the FGMOS transistors in the subthreshold region is discussed.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"355 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132654677","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1348275
Oskar Wibling, J. Parrow, Arnold Neville Pears
Tests and simulations are the only verification techniques used for ad-hoc network routing protocols. Although these techniques give us an excellent overview of the protocol behavior, some undesirable aspects of the protocol could still be undiscovered. Therefore formal verification is needed. This paper presents a new technique to formally verify such protocols by the use of a well-known model-checker: SPIN. As an example, a formal verification of the wireless adaptive routing protocol (W.A.R.P) has been performed.
{"title":"Formal verification of ad-hoc routing protocols using SPIN model checker","authors":"Oskar Wibling, J. Parrow, Arnold Neville Pears","doi":"10.1109/MELCON.2004.1348275","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1348275","url":null,"abstract":"Tests and simulations are the only verification techniques used for ad-hoc network routing protocols. Although these techniques give us an excellent overview of the protocol behavior, some undesirable aspects of the protocol could still be undiscovered. Therefore formal verification is needed. This paper presents a new technique to formally verify such protocols by the use of a well-known model-checker: SPIN. As an example, a formal verification of the wireless adaptive routing protocol (W.A.R.P) has been performed.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114479119","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1346871
V. Ceperic, A. Barić, B. Pejcinovic
The use of artificial neural networks in modeling of oscillators with jitter is proposed in this paper. A new method of simulating oscillators with jitter is developed in which an artificial neural network is used to control the signal generator (i.e. oscillator with adjustable parameters: frequency, amplitude, and jitter). A simple and effective way to generate oscillator output with jitter is proposed. This method ensures a simple, robust, fast and accurate modelling of the oscillators with jitter. The method also yields reasonable results for situations not specified in the learning data set because of the generalization property of artificial neural networks and it is suitable for modelling based on measurements. The models of the GaAs voltage controlled differential ring oscillators for circuit simulation software are developed using the proposed method.
{"title":"Artificial neural network in modelling of voltage controlled oscillators with jitter","authors":"V. Ceperic, A. Barić, B. Pejcinovic","doi":"10.1109/MELCON.2004.1346871","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1346871","url":null,"abstract":"The use of artificial neural networks in modeling of oscillators with jitter is proposed in this paper. A new method of simulating oscillators with jitter is developed in which an artificial neural network is used to control the signal generator (i.e. oscillator with adjustable parameters: frequency, amplitude, and jitter). A simple and effective way to generate oscillator output with jitter is proposed. This method ensures a simple, robust, fast and accurate modelling of the oscillators with jitter. The method also yields reasonable results for situations not specified in the learning data set because of the generalization property of artificial neural networks and it is suitable for modelling based on measurements. The models of the GaAs voltage controlled differential ring oscillators for circuit simulation software are developed using the proposed method.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114607395","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1346975
J. Guterman, A. A. Moreira, C. Peixerio
A novel microstrip GSM1800 + UMTS dual-band antenna based on a Koch fractal shaped patch element is presented. The antenna has been developed to be used in small handsets of future multi-standard mobile communication systems. The fractal miniaturization technique has been combined with a patch inverted F antenna (PIFA) structure. The effect of a small ground plane has been taken into account. The antenna prototype has been fabricated and tested. Good agreement has been obtained between numerical simulations and experimental results providing validation of the design procedure.
{"title":"Dual-band miniaturized microstrip fractal antenna for a small GSM 1800 + UMTS mobile handset","authors":"J. Guterman, A. A. Moreira, C. Peixerio","doi":"10.1109/MELCON.2004.1346975","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1346975","url":null,"abstract":"A novel microstrip GSM1800 + UMTS dual-band antenna based on a Koch fractal shaped patch element is presented. The antenna has been developed to be used in small handsets of future multi-standard mobile communication systems. The fractal miniaturization technique has been combined with a patch inverted F antenna (PIFA) structure. The effect of a small ground plane has been taken into account. The antenna prototype has been fabricated and tested. Good agreement has been obtained between numerical simulations and experimental results providing validation of the design procedure.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114511767","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1347021
A. Castelruiz, J. Sánchez, X. Zalbide, E. Navas, I. Graminde
This paper presents a multimedia archive containing audio and video recordings that can be easily accessed via Web. The database structure and the type of information considered relevant are described. The system implementation, i.e. the data addition process and the Web based search application developed, is explained. Statistical data on the success of the system are included.
{"title":"Description and design of a Web accessible multimedia archive","authors":"A. Castelruiz, J. Sánchez, X. Zalbide, E. Navas, I. Graminde","doi":"10.1109/MELCON.2004.1347021","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1347021","url":null,"abstract":"This paper presents a multimedia archive containing audio and video recordings that can be easily accessed via Web. The database structure and the type of information considered relevant are described. The system implementation, i.e. the data addition process and the Web based search application developed, is explained. Statistical data on the success of the system are included.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116181473","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1346775
I. Krois, V. Isgum, M. Cifrek
In this paper a short introduction into problem of intraoperative interference will be presented. Three most important types of interferences will be analyzed. Connection between their physical properties and scheme of protection circuit will be shown. At the example of realized protection circuit we will show what are additional problems in hardware realization.
{"title":"The amplifier input protection circuit for a intraoperative evoked potential monitoring system","authors":"I. Krois, V. Isgum, M. Cifrek","doi":"10.1109/MELCON.2004.1346775","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1346775","url":null,"abstract":"In this paper a short introduction into problem of intraoperative interference will be presented. Three most important types of interferences will be analyzed. Connection between their physical properties and scheme of protection circuit will be shown. At the example of realized protection circuit we will show what are additional problems in hardware realization.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"423 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123556504","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1348224
F. Bătrînu, E. Carpaneto, G. Chicco, M. De Donno, R. Napoli, R. Porumb, P. Postolache, C. Toader
This paper addresses the optimization of voltage control in distribution systems in the presence of distributed generation. The objective is minimizing the voltage deviations at the load nodes with respect to specified reference values. The optimization is solved by means of a new approach based on nested evolutionary programming. Results are shown on a test system including controls at the HV/MV and MV/LV substations, and voltage-controlled local generation sources.
{"title":"New nested evolutionary programming approach for voltage control optimization with distributed generation","authors":"F. Bătrînu, E. Carpaneto, G. Chicco, M. De Donno, R. Napoli, R. Porumb, P. Postolache, C. Toader","doi":"10.1109/MELCON.2004.1348224","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1348224","url":null,"abstract":"This paper addresses the optimization of voltage control in distribution systems in the presence of distributed generation. The objective is minimizing the voltage deviations at the load nodes with respect to specified reference values. The optimization is solved by means of a new approach based on nested evolutionary programming. Results are shown on a test system including controls at the HV/MV and MV/LV substations, and voltage-controlled local generation sources.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122184674","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}
Pub Date : 2004-05-12DOI: 10.1109/MELCON.2004.1346980
A. Agustí, C. Cervelló-Pastor
A new dynamic routing protocol is proposed in order to reduce burst blocking probability and to increase link efficiency in optical burst switching networks. The protocol distributes wavelength occupation information using binary vectors. Each node merges the information that it receives with its own information. Thus, the nodes can make intelligent decisions on how to allocate burst transmissions. To take full advantage of wavelength occupation knowledge, it is necessary to make sure that a node has the relevant information updated to schedule a new burst transmission. Therefore, a dynamic window offset assignment mechanism is proposed in order to assure it. Simulations validate the protocol performance.
{"title":"A new contentionless dynamic routing protocol for OBS using wavelength occupation knowledge","authors":"A. Agustí, C. Cervelló-Pastor","doi":"10.1109/MELCON.2004.1346980","DOIUrl":"https://doi.org/10.1109/MELCON.2004.1346980","url":null,"abstract":"A new dynamic routing protocol is proposed in order to reduce burst blocking probability and to increase link efficiency in optical burst switching networks. The protocol distributes wavelength occupation information using binary vectors. Each node merges the information that it receives with its own information. Thus, the nodes can make intelligent decisions on how to allocate burst transmissions. To take full advantage of wavelength occupation knowledge, it is necessary to make sure that a node has the relevant information updated to schedule a new burst transmission. Therefore, a dynamic window offset assignment mechanism is proposed in order to assure it. Simulations validate the protocol performance.","PeriodicalId":164818,"journal":{"name":"Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117180445","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}