Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548384
Carlos A. Astudillo, T. Andrade, E. S. Gama, L. Bittencourt, L. Villas, E. Madeira, N. Fonseca
Radio over Fiber (RoF) is one of the main technologies for the next-generation access networks due to its immunity to electromagnetic interference, low latency, low power consumption and high transmission capacity. RoF enables the processing of several radio frequency (RF) signals in a centralized location, reducing both capital expenditures (CAPEX) and operating expenditures (OPEX). This paper describes a testbed of Internet-of-Things (IoT) for environmental monitoring based on RoF that is under development in the framework of the H2020 FUTEBOL project. Moreover, we assess the impact of RoF on network performance by using a new methodology oriented to real environments.
{"title":"Internet of Things for Environmental Monitoring Based on Radio Over Fiber","authors":"Carlos A. Astudillo, T. Andrade, E. S. Gama, L. Bittencourt, L. Villas, E. Madeira, N. Fonseca","doi":"10.1109/RTSI.2018.8548384","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548384","url":null,"abstract":"Radio over Fiber (RoF) is one of the main technologies for the next-generation access networks due to its immunity to electromagnetic interference, low latency, low power consumption and high transmission capacity. RoF enables the processing of several radio frequency (RF) signals in a centralized location, reducing both capital expenditures (CAPEX) and operating expenditures (OPEX). This paper describes a testbed of Internet-of-Things (IoT) for environmental monitoring based on RoF that is under development in the framework of the H2020 FUTEBOL project. Moreover, we assess the impact of RoF on network performance by using a new methodology oriented to real environments.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"297 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132692610","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548405
Alessandro Gattolin, C. Rottondi, G. Verticale
BlAsT is an efficient scheme for achieving certification of data continuity through a history attached to a public blockchain. The scheme guarantees the properties of linearity, non-equivocation, time-stamping and transparency. We discuss the implementation of BlAsT over the Bitcoin and the Ethereum blokchains, provide a techno-economic analysis to evaluate the costs related to blockchain adoption, and numerically assess the performance of the proposed architecture in terms of storage and bandwidth requirements. Results show that the above properties can be guaranteed with a small cryptocurrency payment. The proposed scheme can be used for IoT devices under the assumption that the device is able to either perform blockchain validation or delegate it to a trusted node.
{"title":"BlAsT: Blockchain-Assisted Key Transparency for Device Authentication","authors":"Alessandro Gattolin, C. Rottondi, G. Verticale","doi":"10.1109/RTSI.2018.8548405","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548405","url":null,"abstract":"BlAsT is an efficient scheme for achieving certification of data continuity through a history attached to a public blockchain. The scheme guarantees the properties of linearity, non-equivocation, time-stamping and transparency. We discuss the implementation of BlAsT over the Bitcoin and the Ethereum blokchains, provide a techno-economic analysis to evaluate the costs related to blockchain adoption, and numerically assess the performance of the proposed architecture in terms of storage and bandwidth requirements. Results show that the above properties can be guaranteed with a small cryptocurrency payment. The proposed scheme can be used for IoT devices under the assumption that the device is able to either perform blockchain validation or delegate it to a trusted node.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"304 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133660552","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548381
Siying Li, Marie-Hélène Abel, E. Negre
Working collaboratively is no longer an issue but a reality, what matters today is how to implement collaboration so that it is as successful as possible. It is therefore necessary to consider the criteria to be taken into account to promote its effectiveness. As part of our work, we are interested in taking into account the collaboration context for this purpose and the role that contact can take in this context. We wondered about its definition, representation and exploitation. The latter must be able to be done at different stages of collaboration: before, during and after. In this article, we present the collaboration context model that we have established and show why and how it can be used to establish successful collaboration.
{"title":"Contact and Collaboration Context Model","authors":"Siying Li, Marie-Hélène Abel, E. Negre","doi":"10.1109/RTSI.2018.8548381","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548381","url":null,"abstract":"Working collaboratively is no longer an issue but a reality, what matters today is how to implement collaboration so that it is as successful as possible. It is therefore necessary to consider the criteria to be taken into account to promote its effectiveness. As part of our work, we are interested in taking into account the collaboration context for this purpose and the role that contact can take in this context. We wondered about its definition, representation and exploitation. The latter must be able to be done at different stages of collaboration: before, during and after. In this article, we present the collaboration context model that we have established and show why and how it can be used to establish successful collaboration.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133761849","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548380
S. Carcangiu, A. Montisci
In this work, a fault detection approach for diagnosis of nonlinear systems is presented. This diagnostic approach is performed resorting to a neural predictor of the output of the system, and by using the error prediction as a feature for the diagnosis. The neural predictor is a locally recurrent neural network, which is dynamically trained by using a gradient-based algorithm, where the gradient of the error function is expressed in closed form. The residuals of the prediction are affected by the deviation of the parameters from their nominal values, so that an early detection of the faults can be performed by observing the dynamic of the residuals. The Willamoski-Rossler reaction is used as case study in order to validate the diagnostic approach.
{"title":"A Locally Recurrent Neural Network Based Approach for the Early Fault Detection","authors":"S. Carcangiu, A. Montisci","doi":"10.1109/RTSI.2018.8548380","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548380","url":null,"abstract":"In this work, a fault detection approach for diagnosis of nonlinear systems is presented. This diagnostic approach is performed resorting to a neural predictor of the output of the system, and by using the error prediction as a feature for the diagnosis. The neural predictor is a locally recurrent neural network, which is dynamically trained by using a gradient-based algorithm, where the gradient of the error function is expressed in closed form. The residuals of the prediction are affected by the deviation of the parameters from their nominal values, so that an early detection of the faults can be performed by observing the dynamic of the residuals. The Willamoski-Rossler reaction is used as case study in order to validate the diagnostic approach.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131696350","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548434
C. Zanca, C. Sunseri, R. Inguanta
This paper presents an alternative way to obtain perovskite thin films for photovoltaic application. This technique results more competitive, scalable, low-cost, reproducible and is different from other most common methods of fabrication.
{"title":"Fabrication and Characterisation of Perovskite Thin Films for Photovoltaic Application","authors":"C. Zanca, C. Sunseri, R. Inguanta","doi":"10.1109/RTSI.2018.8548434","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548434","url":null,"abstract":"This paper presents an alternative way to obtain perovskite thin films for photovoltaic application. This technique results more competitive, scalable, low-cost, reproducible and is different from other most common methods of fabrication.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127480863","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548406
H. Rimal
A simplified dynamic model to represent the behaviour of soft ferrites at higher frequency is necessary in many applications including avionics. We have tried to address this issue by using a circuital model. The model represents frequency dependence of hysteresis in ferrite material using the parallel combination of static hysteresis model and passive electrical elements. The static hysteresis model such as preisach model represents the magnetic core behaviour, whereas the passive electrical elements represent the broadening of hysteresis loops with the increase in frequency. The parameters of the model are identified using pattern search algorithm, and the model is tested for the frequency upto one Megahertz. Comparison between the results obtained from simulation and measurements for N30 Manganese Zinc ferrite using sinusoidal excitation are presented in the paper. The model is applicable to predict the performance of ferrite core inductors that are used to mitigate the lightning indirect effects in avionic equipments.
{"title":"Dynamic Model of Soft Ferrites for Avionic Applications","authors":"H. Rimal","doi":"10.1109/RTSI.2018.8548406","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548406","url":null,"abstract":"A simplified dynamic model to represent the behaviour of soft ferrites at higher frequency is necessary in many applications including avionics. We have tried to address this issue by using a circuital model. The model represents frequency dependence of hysteresis in ferrite material using the parallel combination of static hysteresis model and passive electrical elements. The static hysteresis model such as preisach model represents the magnetic core behaviour, whereas the passive electrical elements represent the broadening of hysteresis loops with the increase in frequency. The parameters of the model are identified using pattern search algorithm, and the model is tested for the frequency upto one Megahertz. Comparison between the results obtained from simulation and measurements for N30 Manganese Zinc ferrite using sinusoidal excitation are presented in the paper. The model is applicable to predict the performance of ferrite core inductors that are used to mitigate the lightning indirect effects in avionic equipments.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126176146","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548360
L. Scarpa, G. Chicco, F. Spertino, P. Tumino, Marco Nunnari
This paper deals with photovoltaic (PV) systems with operating voltage increased over the value 1500 V in DC, which represents the limit of the current solutions and the actual standard for the PV plant at utility-scale level. The increase of the DC voltage is aimed at reducing the cable energy losses, the number of components and to optimise the layout of the plants, increasing the competitiveness of Medium Voltage PV (MVPV) solutions with rated powers of hundreds of megawatt. The analysis carried out has identified the possible solutions to adopt in order to reach this target and has remarked that today the International Standards are not covering all the aspects of the technical solutions to be introduced in a MVPV plant. This paper indicates the key issues to be addressed by new Standards on some components in order to enable the deployment of MVPV solutions. Finally, the characteristics of an installation at 1500 V DC and some results of tests carried out on the isolation system of a 1500 V PV plant are discussed.
{"title":"Technical Solutions and Standards Upgrade for Photovoltaic Systems Operated Over 1500 Vdc","authors":"L. Scarpa, G. Chicco, F. Spertino, P. Tumino, Marco Nunnari","doi":"10.1109/RTSI.2018.8548360","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548360","url":null,"abstract":"This paper deals with photovoltaic (PV) systems with operating voltage increased over the value 1500 V in DC, which represents the limit of the current solutions and the actual standard for the PV plant at utility-scale level. The increase of the DC voltage is aimed at reducing the cable energy losses, the number of components and to optimise the layout of the plants, increasing the competitiveness of Medium Voltage PV (MVPV) solutions with rated powers of hundreds of megawatt. The analysis carried out has identified the possible solutions to adopt in order to reach this target and has remarked that today the International Standards are not covering all the aspects of the technical solutions to be introduced in a MVPV plant. This paper indicates the key issues to be addressed by new Standards on some components in order to enable the deployment of MVPV solutions. Finally, the characteristics of an installation at 1500 V DC and some results of tests carried out on the isolation system of a 1500 V PV plant are discussed.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116177968","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548407
George-Andrei Dima, Andrei-Gabriel Jitariu, Claudio Pisa, G. Bianchi
The media has brought to the attention of the general public the issue of subjects claiming titles (e.g. academic degrees) which they have not achieved. Verifying these identity claims can be a cumbersome task. In this paper we show how identity claims can be supported through a permissioned blockchain. Although our approach can be applied to multiple contexts, we focus on the scenario where educational institutions provide graduation titles to subjects. The subjects can then demonstrate the possession of the given titles through transactions in the blockchain. We validate the feasibility of our approach through an implementation, named Scholarium, based on MultiChain, and provide a security analysis of the proposed system.
{"title":"Scholarium: Supporting Identity Claims Through a Permissioned Blockchain","authors":"George-Andrei Dima, Andrei-Gabriel Jitariu, Claudio Pisa, G. Bianchi","doi":"10.1109/RTSI.2018.8548407","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548407","url":null,"abstract":"The media has brought to the attention of the general public the issue of subjects claiming titles (e.g. academic degrees) which they have not achieved. Verifying these identity claims can be a cumbersome task. In this paper we show how identity claims can be supported through a permissioned blockchain. Although our approach can be applied to multiple contexts, we focus on the scenario where educational institutions provide graduation titles to subjects. The subjects can then demonstrate the possession of the given titles through transactions in the blockchain. We validate the feasibility of our approach through an implementation, named Scholarium, based on MultiChain, and provide a security analysis of the proposed system.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116532044","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548359
G. Coluccelli, V. Loffredo, L. Monti, M. Spada, F. Franchi, F. Graziosi
To consolidate the new 5G paradigm, many aspects correlated to the business model, societal impacts, must be analysed. The 5G Italian experience coordinated by “Ministry of Economic Development” (MISE Trial) has the target to create and enforce a 5G ecosystem development in Italy involving different public and private actors, industries, research centers and universities, like in the 5G PPP initiative. The potential synergies to improve the global 5G ecosystem in Italy are analyzed and the selected use cases are introduced to describe how to create the “5G road” in Italy.
{"title":"5G Italian MISE Trial: Synergies Among Different Actors to Create a “5G Road”","authors":"G. Coluccelli, V. Loffredo, L. Monti, M. Spada, F. Franchi, F. Graziosi","doi":"10.1109/RTSI.2018.8548359","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548359","url":null,"abstract":"To consolidate the new 5G paradigm, many aspects correlated to the business model, societal impacts, must be analysed. The 5G Italian experience coordinated by “Ministry of Economic Development” (MISE Trial) has the target to create and enforce a 5G ecosystem development in Italy involving different public and private actors, industries, research centers and universities, like in the 5G PPP initiative. The potential synergies to improve the global 5G ecosystem in Italy are analyzed and the selected use cases are introduced to describe how to create the “5G road” in Italy.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121881950","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 : 2018-09-01DOI: 10.1109/rtsi.2018.8548370
{"title":"Research and Technologies for Society and Industry","authors":"","doi":"10.1109/rtsi.2018.8548370","DOIUrl":"https://doi.org/10.1109/rtsi.2018.8548370","url":null,"abstract":"","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121884978","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}
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