Salvatore Costanzo, L. Galluccio, G. Morabito, S. Palazzo
{"title":"Software Defined Wireless Network (SDWN): An evolvable architecture for W-PANs","authors":"Salvatore Costanzo, L. Galluccio, G. Morabito, S. Palazzo","doi":"10.1109/RTSI.2015.7325066","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325066","url":null,"abstract":"Rarely the interest in a new networking paradigm has increased at such a velocity as it is happening for software defined networking (SDN). Motivations of this hype of interest are several but the most important can be re-conducted to the following three: (i) SDN simplifies network configuration and management; (ii) SDN makes the network evolvable; (iii) SDN frees operators from vendors' lock-in. Eagerly, in some cases, or reluctantly, in others, both operators and manufacturers of communication and networking equipments have started new lines of research, development, and marketing focused on SDN. A quick look at the list of members of the organizations promoting the development of SDN-related standards suffices to understand that players of the wireless domain are trying to ride this wave as well. However, it is difficult for the observers to understand where such a wave is headed to in very common networking scenarios involving infrastructureless wireless communications. This paper is an attempt to fill this gap. In fact, a major objective of this paper is to analyze (i) what are the advantages of SDN in infrastructureless wireless networking environments such as wireless personal area networks (W-PANs), and (ii) what are the requirements that must be satisfied to apply SDN in W-PANs. Furthermore, a complete SDN solution for W-PANs, named Software Defined Wireless Network (SDWN), is introduced and a prototype implementation is described.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122635029","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}
Patrice Raveneau, Razvan Stanica, M. Fiore, Sandesh Uppoor, M. Cunche, H. Rivano, Z. Smoreda
{"title":"Urban-scale cellular offloading through Wi-Fi access points: A measurement-based case study","authors":"Patrice Raveneau, Razvan Stanica, M. Fiore, Sandesh Uppoor, M. Cunche, H. Rivano, Z. Smoreda","doi":"10.1109/RTSI.2015.7325083","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325083","url":null,"abstract":"Wi-Fi offloading is one of the most effective approaches to relieve the cellular radio access from part of the burgeoning mobile demand. To date, Wi-Fi offloading has been mainly leveraged in limited contexts, such as home, office or campus environments. In this paper, we investigate the scaling properties of Wi-Fi offloading, by studying how it would perform on a much larger scope than those considered today. To that end, we consider a real-world citywide scenario, built on data about actual infrastructure deployments and mobile traffic demand, and observe which amount of traffic could be accommodated by the existing pervasive Wi-Fi access infrastructure, were it opened to mobile users. We find that more than 80% of the mobile traffic demand in a large urban area may be easily served by Wi-Fi access points, under a wide range of system settings.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126993540","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}
{"title":"Performance evaluation of wireless power transfer systems for electric vehicles using the opposition method","authors":"V. Cirimele, S. Rosu, P. Guglielmi, F. Freschi","doi":"10.1109/RTSI.2015.7325155","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325155","url":null,"abstract":"The present paper proposes the use of the opposition method to evaluate the performance of a wireless power transfer system. The work is focused on the effect related to the insertion of conductive or ferromagnetic components that are materials typically adopted in the realization of this kind of systems.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127657486","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}
{"title":"Overhead and ACK-induced jitter in Modbus TCP communication","authors":"T. Hu, I. Bertolotti","doi":"10.1109/RTSI.2015.7325130","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325130","url":null,"abstract":"The Modbus protocol is widely used at the field level, such as building automation and industrial automation. Among existing implementations of the protocol over different communication infrastructures, Modbus TCP offers better scalability and interoperability than Modbus RTU and Modbus CAN, while at the same time, its real-time performance suffers, which limits its adoption in time-critical application domains. In this paper, the overhead and jitter of Modbus TCP communication are thoroughly evaluated by means of theoretical analysis and experimental campaigns. The results show that, the TCP acknowledgment mechanism is mainly responsible for the round trip time jitter, which in turn may affect the system reliability as well as safety. Instead, its overhead is much more affordable for typical embedded applications.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133074233","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}
F. Bertazzi, S. Dominici, M. Mandurrino, D. Robidas, Xiangyu Zhou, M. Vallone, M. Calciati, P. Debernardi, G. Verzellesi, M. Meneghini, E. Bellotti, G. Ghione, M. Goano
{"title":"Modeling challenges for high-efficiency visible light-emitting diodes","authors":"F. Bertazzi, S. Dominici, M. Mandurrino, D. Robidas, Xiangyu Zhou, M. Vallone, M. Calciati, P. Debernardi, G. Verzellesi, M. Meneghini, E. Bellotti, G. Ghione, M. Goano","doi":"10.1109/RTSI.2015.7325090","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325090","url":null,"abstract":"In order to predict through numerical simulation the optical and carrier transport properties of GaN-based light-emitting diodes (LEDs), a genuine quantum approach should be combined with an atomistic description of the electronic structure. However, computational considerations have elicited the empirical inclusion of quantum contributions within conventional semiclassical drift-diffusion approaches. The lack of first-principles validation tools has left these “quantum corrections” largely untested, at least in the context of LED simulation. We discuss here the results obtained comparing state-of-the-art commercial numerical simulators, in order to assess the predictive capabilities of some of the most important quantum-based models complementing the drift-diffusion equations.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115067554","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}
Antonino Laudani, G. Lozito, S. Coco, G. Pollicino
{"title":"FE analysis of magnetic shielding screens based on mortars containing ferromagnetic particles","authors":"Antonino Laudani, G. Lozito, S. Coco, G. Pollicino","doi":"10.1109/RTSI.2015.7325092","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325092","url":null,"abstract":"This paper documents the research towards the development of a simple approach to model composite magnetic materials through Finite Elements Method analysis. The computational problems found in representing composite materials at microscopic level are solved through a homogenization technique based on energy balance. The technique was used to estimate the effective permeability of a material, and through a larger scale simulation, its shielding effectiveness against extremely low frequency magnetic fields. The results were then validated using an experimental setup.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"12 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132605765","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}
I. Bojoi, A. Cavagnino, A. Tenconi, A. Tessarolo, S. Vaschetto
{"title":"Multiphase electrical machines and drives in the transportation electrification","authors":"I. Bojoi, A. Cavagnino, A. Tenconi, A. Tessarolo, S. Vaschetto","doi":"10.1109/RTSI.2015.7325099","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325099","url":null,"abstract":"Transport industry is facing a paradigm shift towards the most promising and sustainable solution represented by the transportation electrification. This concept has not only been adopted for the propulsion powertrains, but also for the auxiliary systems. Indeed, in the last few decades electrification has come to smart actuators to improve both safety and comfort of the passengers. In this contest, multiphase electrical machines and drives represent a promising solution to satisfy the challenging requirements imposed by the applications, such as reduced weight and volume, high efficiency, low vibrations and noise, robustness and fault tolerance. With reference to the technical literature and applications, this paper presents an overview of the multiphase technology for the transportation electrification in road vehicle, rail vehicles, air transports and shipboard applications.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130681069","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}
{"title":"Measurement-based energy consumption profiling of mobile radio networks","authors":"A. Capone, S. D’Elia, I. Filippini, M. Zangani","doi":"10.1109/RTSI.2015.7325082","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325082","url":null,"abstract":"The exponential growth of mobile traffic is forcing operators to increase quickly the capacity of their network and extend it with new technologies and improved topologies, such as heterogeneous layouts with small cells. However, since revenues cannot grow at the same rate of traffic, the main challenge is to manage capacity expansion with reduced costs. In addition to fixed costs for the new network infrastructures, operational costs are becoming critical, mainly for energy bill component. Moreover, the carbon footprint of mobile access networks is considered one of the largest of the whole ICT (Information and Communications Technology) sector and its reduction is fundamental for the environmental sustainability of the Internet economy. Due to these reasons, improving the energy efficiency of the access network is crucial for mobile operators. In order to do that, monitoring the energy consumption of the network components and defining models of energy profile are valuable approaches for estimating energy costs and identifying the most efficient configurations. In this paper, we present an energy consumption monitoring system that has been designed and implemented in three different countries using separate sensors for the radio and base-band components of second, third and fourth generation systems. We also propose an energy profiling approach that simplifies the characterization of the different components and allows the estimation of the energy efficiency based on traffic statistics.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132911021","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}
A. Chandra, Pavel Kukolev, T. Mikulášek, A. Prokeš
{"title":"Frequency-domain in-vehicle channel modelling in mmW band","authors":"A. Chandra, Pavel Kukolev, T. Mikulášek, A. Prokeš","doi":"10.1109/RTSI.2015.7325079","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325079","url":null,"abstract":"The goal of this paper is to characterize frequency domain channel transfer function of intra vehicular millimeter wave links in the 60 GHz band. It is found that the complex transfer function may be decomposed into two terms, the first one being a real valued long term trend that characterizes frequency dependency with a power law, and the second term forms a complex correlative discrete series which may be represented via an autoregressive model. The proposed model is validated by comparing the simulated transfer function with the measured data. Simulated values for the coherence bandwidth, power delay profile, and the root mean square delay spread are also in good agreement with the experimental values.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122352444","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}
M. Rucco, E. Concettoni, C. Cristalli, Andrea Ferrante, E. Merelli
{"title":"Topological classification of small DC motors","authors":"M. Rucco, E. Concettoni, C. Cristalli, Andrea Ferrante, E. Merelli","doi":"10.1109/RTSI.2015.7325097","DOIUrl":"https://doi.org/10.1109/RTSI.2015.7325097","url":null,"abstract":"In this paper we propose a new methodology based on signal embedding and applied topology for studying real noisy signals. Even if signal embedding is a useful tool, it is not sufficient for studying long range noisy signals. We argue that embedded signal in ℝm space can be properly analysed with topology based techniques. We obtained numerical evidences that our procedure properly classifies small DC motors into good/faulty, using the vibration data acquired from the bench. Small DC motors are largely employed in automotive to drive fans in HVAC (Heating, Ventilation and Air Conditioning) systems. Because of their high-speed, they can produce noise and vibration, perceived by the final users as a lack of quality. This problem is becoming relevant with the advent of the hybrid vehicles, in which the electrical motor is completely silent if compared to a traditional internal combustion engine, so all other noise and vibration source become noticeable by the passengers and felt as discomfort or a nuisance.","PeriodicalId":187166,"journal":{"name":"2015 IEEE 1st International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129142538","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}