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II International Conference on Applications of Optics and Photonics, Aveiro, Portugal, 2014
Institute, Department or Faculty Head
01 November 2018 - 31 August 2021
ROGÉRIO DIONISIO received his PhD in Electrical Engineering from University of Aveiro, Portugal, in 2014. Since 1999, he has worked as a Professor at the Polytechnic Institute of Castelo Branco. He participates in several national and European research projects on optical communications, wireless communications and networks of excellence. He is the author of several journal and conference publications. His main research interests are wireless sensor networks, advanced signal processing, radio spectral coexistence analysis and cognitive radio systems. He served as a reconfigurable radio system expert to the European Commission. He is currently associate member of the DiSAC R&D unit and a researcher at INESC-TEC.
This experimental study focuses on the comparison between two different sensors for vibration signals: a magnetoresistive sensor and an accelerometer as a calibrated reference. The vibrations are collected from a variable speed inductor motor setup, coupled to a ball bearing load with adjustable misalignments. To evaluate the performance of the magnetoresistive sensor against the accelerometer, several vibration measurements are performed in three different axes: axial, horizontal and vertical. Vibration velocity measurements from both sensors were collected and analyzed based on spectral decomposition of the signals. The high cross-correlation coefficient between spectrum vibration signatures in all experimental measurements shows good agreement between the proposed magnetoresistive sensor and the reference accelerometer performances. The results demonstrate the potential of this type of innovative and non-contact approach to vibration data collection and a prospective use of magnetoresistive sensors for predictive maintenance models for inductive motors in Industry 4.0 applications.
Rogerio Dionisio; Pedro Torres; Armando Ramalho; Ricardo Ferreira. Magnetoresistive Sensors and Piezoresistive Accelerometers for Vibration Measurements: A Comparative Study. Journal of Sensor and Actuator Networks 2021, 10, 22 .
AMA StyleRogerio Dionisio, Pedro Torres, Armando Ramalho, Ricardo Ferreira. Magnetoresistive Sensors and Piezoresistive Accelerometers for Vibration Measurements: A Comparative Study. Journal of Sensor and Actuator Networks. 2021; 10 (1):22.
Chicago/Turabian StyleRogerio Dionisio; Pedro Torres; Armando Ramalho; Ricardo Ferreira. 2021. "Magnetoresistive Sensors and Piezoresistive Accelerometers for Vibration Measurements: A Comparative Study." Journal of Sensor and Actuator Networks 10, no. 1: 22.
The presence of Industrial IoT systems on the factory shop floor in recent years, are becoming an attractive solution with many advantages, including flexibility, low cost and easy deployment. As more and more devices are wirelessly connected, spectral noise level increases and consequently radio interference between IoT devices. In this paper, we present an agnostic methodology to assess radio interferences between different industrial IoT systems on the factory floor, using appropriate propagation models. Several interference scenarios are simulated, ranging from legacy systems to future communication standards implementations (5G). We highlight some of the challenges and open issues that still need to be addressed to decrease interference and make industrial wireless systems compatible.
Rogerio Dionisio; Teodora Lolic; Pedro Torres. Electromagnetic Interference Analysis of Industrial IoT Networks: From Legacy Systems to 5G. 2020 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW) 2020, 1, 41 -46.
AMA StyleRogerio Dionisio, Teodora Lolic, Pedro Torres. Electromagnetic Interference Analysis of Industrial IoT Networks: From Legacy Systems to 5G. 2020 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW). 2020; 1 ():41-46.
Chicago/Turabian StyleRogerio Dionisio; Teodora Lolic; Pedro Torres. 2020. "Electromagnetic Interference Analysis of Industrial IoT Networks: From Legacy Systems to 5G." 2020 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW) 1, no. : 41-46.
The fourth industrial revolution promotes Industrial Cyber Physical Systems (ICPS) as the key to achieve smart, efficient, flexible and self-organizing production plants. In a shop floor there are heterogeneous physical and logical assets that form the ICPS. But without proper communication and composition techniques the integration of these assets in ICPS is compromised. Component Based Software Engineering (CBSE) is a discipline of growing relevance for ICPS because integration and composition issues have been extensively researched in the software domain. Under the Reference Architecture for Industry 4.0 (RAMI 4.0), the Industry 4.0 Component Model inherits aspects of CBSE to specify how several industrial plant assets can form an ICPS. The technological aspects for physical assets digitalization and integration have been explored, but the I4.0 Component model lacks proposals and use cases for dealing with industrial software components. In this work we discuss the development of the Smart Component Model as a proposal for integration of software components in ICPS. Furthermore, we focus on how prediction and monitoring applications could be converted in I4.0 Components and integrated in ICPS. To sustain our proposals, we describe a real industrial case study where these developments are being applied.
Luis Neto; Gil Goncalves; Pedro Torres; Rogerio Dionisio. On the development of a component model for the realization of Industry 4.0. 2020 IEEE Conference on Industrial Cyberphysical Systems (ICPS) 2020, 1, 481 -486.
AMA StyleLuis Neto, Gil Goncalves, Pedro Torres, Rogerio Dionisio. On the development of a component model for the realization of Industry 4.0. 2020 IEEE Conference on Industrial Cyberphysical Systems (ICPS). 2020; 1 ():481-486.
Chicago/Turabian StyleLuis Neto; Gil Goncalves; Pedro Torres; Rogerio Dionisio. 2020. "On the development of a component model for the realization of Industry 4.0." 2020 IEEE Conference on Industrial Cyberphysical Systems (ICPS) 1, no. : 481-486.
Alexandre Fonte; João Caldeira; Vasco N. G. J. Soares; Pedro Torres; Rogerio Dionisio; Sérgio Malhão. Local Discovery Service for OPC-UA Devices. 2020 15th Iberian Conference on Information Systems and Technologies (CISTI) 2020, 1 .
AMA StyleAlexandre Fonte, João Caldeira, Vasco N. G. J. Soares, Pedro Torres, Rogerio Dionisio, Sérgio Malhão. Local Discovery Service for OPC-UA Devices. 2020 15th Iberian Conference on Information Systems and Technologies (CISTI). 2020; ():1.
Chicago/Turabian StyleAlexandre Fonte; João Caldeira; Vasco N. G. J. Soares; Pedro Torres; Rogerio Dionisio; Sérgio Malhão. 2020. "Local Discovery Service for OPC-UA Devices." 2020 15th Iberian Conference on Information Systems and Technologies (CISTI) , no. : 1.
Constant search for efficiency and productivity has led to innovation on the factory shop floor, representing an evolution of the current production systems combined with new technologies of industrial automation and information technology. This work presents a versatile gateway for experimental demonstration of Industrial IoT technologies in a loom machine, allowing sensing, monitoring and data acquisition that was not originally available. We have implemented an approach, based on the OPC UA communication protocol for real time applications, and OPC UA to MQTT conversion mechanism. Raspberry Pi’s platform act as an OPC UA server. From the measurements, data stored in a cloud server can be accessed remotely with improved security and visualized from a computer dashboard. One of the conclusions that can be drawn is that the proposed gateway allows data to be stored and easily monitored from a smartphone application or a computer web interface.
Rogerio Dionisio; Sergio Malhao; Pedro Torres. Development of a Smart Gateway for a Label Loom Machine using Industrial IoT Technologies. International Journal of Online and Biomedical Engineering (iJOE) 2020, 16, 6 -14.
AMA StyleRogerio Dionisio, Sergio Malhao, Pedro Torres. Development of a Smart Gateway for a Label Loom Machine using Industrial IoT Technologies. International Journal of Online and Biomedical Engineering (iJOE). 2020; 16 (4):6-14.
Chicago/Turabian StyleRogerio Dionisio; Sergio Malhao; Pedro Torres. 2020. "Development of a Smart Gateway for a Label Loom Machine using Industrial IoT Technologies." International Journal of Online and Biomedical Engineering (iJOE) 16, no. 4: 6-14.
In the institutions of higher education, the utilization of a wide range of electronic frameworks has become an ordinary thing, from computerized showcasing approach frameworks (e.g. Facebook, Instagram) to e-learning frameworks, electronic diary and such. Since e-learning frameworks are getting higher consideration and potential in various researches within the past decade, authors of the paper have been motivated to explore students’ point of view of an e-learning framework utilization. This research represents an empirical study of factors influencing students in the process of using the e-learning system during their studies. Consequently, an integrated model based on five constructs shows factors influencing students intend to use the system. Construct Facilitating Conditions resulted as the most significant from students’ point of view. Our findings can help teachers with how to improve students’ intention to use the system and to increase the overall learning potential, giving insight on what to pay attention to, accordingly.
Teodora Lolic; Rogério Dionisio; Danijela Ciric; Sonja Ristic; Darko Stefanovic. Factors Influencing Students Usage of an e-Learning System: Evidence from IT Students. Proceedings of the International Congress of Industrial Engineering (ICIE2019) 2020, 205 -215.
AMA StyleTeodora Lolic, Rogério Dionisio, Danijela Ciric, Sonja Ristic, Darko Stefanovic. Factors Influencing Students Usage of an e-Learning System: Evidence from IT Students. Proceedings of the International Congress of Industrial Engineering (ICIE2019). 2020; ():205-215.
Chicago/Turabian StyleTeodora Lolic; Rogério Dionisio; Danijela Ciric; Sonja Ristic; Darko Stefanovic. 2020. "Factors Influencing Students Usage of an e-Learning System: Evidence from IT Students." Proceedings of the International Congress of Industrial Engineering (ICIE2019) , no. : 205-215.
Industry 4.0 paradigm is a reality in the digitization of industrial processes and physical assets, as well as their integration into digital ecosystems with several suppliers of the value chain. In particular, Industry 4.0 is the technological evolution of embedded systems applied to Cyber-Physical Systems (CPSs). With this, a shift from the current paradigm of centralization to a more decentralized production, supported by Industrial Internet of Things (IIoT), is implied. The work reported in this paper focuses on the development of smart devices (SmartBoxes), based on low-cost hardware such as Raspberry Pi and also platforms certified for industrial applications, such as NI CompactRIO. Both platforms adopted the OPC-UA architecture to collect data from the shop-floor and convert it into OPC-UA Data Access standard for further integration in the proposed CPPS. Tests were also performed with the MQTT protocol for monitorization. Each SmartBox is capable of real-time applications that run on OPC-UA and MQTT, allowing easy interaction between supervisory systems and physical assets.
Pedro Torres; Rogerio Dionisio; Sérgio Malhão; Luis Neto; Ricardo Ferreira; Helena Gouveia; Hélder Castro. Cyber-Physical Production Systems supported by Intelligent Devices (SmartBoxes) for Industrial Processes Digitalization. 2019 IEEE 5th International forum on Research and Technology for Society and Industry (RTSI) 2019, 73 -78.
AMA StylePedro Torres, Rogerio Dionisio, Sérgio Malhão, Luis Neto, Ricardo Ferreira, Helena Gouveia, Hélder Castro. Cyber-Physical Production Systems supported by Intelligent Devices (SmartBoxes) for Industrial Processes Digitalization. 2019 IEEE 5th International forum on Research and Technology for Society and Industry (RTSI). 2019; ():73-78.
Chicago/Turabian StylePedro Torres; Rogerio Dionisio; Sérgio Malhão; Luis Neto; Ricardo Ferreira; Helena Gouveia; Hélder Castro. 2019. "Cyber-Physical Production Systems supported by Intelligent Devices (SmartBoxes) for Industrial Processes Digitalization." 2019 IEEE 5th International forum on Research and Technology for Society and Industry (RTSI) , no. : 73-78.
Constant search for efficiency and productivity has led to innovation on the factory shop floor, representing an evolution of the current production systems combined with new technologies of industrial automation and information technology. This work presents an experimental demo of a smartbox for Industry 4.0 scenarios, allowing sensing, monitoring and data acquisition. We have tested two different approaches, depending on the communication protocol used for real time applications: OPC UA or MQTT. Raspberry Pi’s platform act as an OPC UA server or MQTT broker, respectively. From the measurements, data stored in a cloud server can be accessed remotely with improved security and visualized from a computer dashboard. One of the conclusions that can be drawn is that both protocols allow data from the smartbox to be stored and easily monitored from a smartphone application or a computer web interface. MQTT is a good option in communications requiring very low bandwidth. However, there is a lack of suitable libraries to program alarm features for OPC UA Servers.
Sérgio Malhão; Rogerio Dionisio; Pedro Torres. Industrial IoT Smartbox for the Shop Floor. 2019 5th Experiment International Conference (exp.at'19) 2019, 258 -259.
AMA StyleSérgio Malhão, Rogerio Dionisio, Pedro Torres. Industrial IoT Smartbox for the Shop Floor. 2019 5th Experiment International Conference (exp.at'19). 2019; ():258-259.
Chicago/Turabian StyleSérgio Malhão; Rogerio Dionisio; Pedro Torres. 2019. "Industrial IoT Smartbox for the Shop Floor." 2019 5th Experiment International Conference (exp.at'19) , no. : 258-259.
This book chapter proposes a description of smart gateways and cyber-physical systems (CPS) for the industrial internet of things (I-IOT). It also presents a case study where a smart gateway is developed to be used in different types of industrial equipment for the shop floor. The case study is developed under the specifications of different industries in the region of Castelo Branco. It is a proof that the 4th industrial revolution will be the engine for SME innovation, independence of the regions and their financial strength. It is also proof that the cooperation between universities, industries and startups can evolve to break barriers and add value in the improvement of regional industries competitiveness. Topics that will be addressed on the chapter can be used for developers, students, researchers and enthusiasts to learn topics related to I-IOT, such as data acquisitions systems, wired and wireless communication devices and protocols, OPC servers and LabVIEW programming.
Eva Masero; Pedro Miguel Baptista Torres; Rogério Pais Dionísio. Smart Gateways for IOT-Factory Integration. Advances in Logistics, Operations, and Management Science 2019, 149 -170.
AMA StyleEva Masero, Pedro Miguel Baptista Torres, Rogério Pais Dionísio. Smart Gateways for IOT-Factory Integration. Advances in Logistics, Operations, and Management Science. 2019; ():149-170.
Chicago/Turabian StyleEva Masero; Pedro Miguel Baptista Torres; Rogério Pais Dionísio. 2019. "Smart Gateways for IOT-Factory Integration." Advances in Logistics, Operations, and Management Science , no. : 149-170.
The present paper describes the state of the art related to IIoT Devices and Cyber-Physical systems and presents a use case related to predictive maintenance. Industry 4.0 is the boost for smart manufacturing and demands flexibility and adaptability of all devices/machines in the shop floor. The machines must become smart and interact with other machines inside and outside the industries/factories. The predictive maintenance is a key topic in this industrial revolution. The reason is based on the idea that smart machines must be capable to automatically identify and predict possible faults and actuate before they occur. Vibrations can be problematic in electrical motors. For this reason, we address an experimental study associated with an automatic classification procedure, that runs in the smart devices to detect anomalies. The results corroborate the applicability and usefulness of this machine learning algorithm to predict vibration faults.
Eva Masero Rubio; Rogério Pais Dionísio; Pedro Miguel Baptista Torres. Industrial IoT Devices and Cyber-Physical Production Systems: Review and Use Case. Lecture Notes in Electrical Engineering 2018, 292 -298.
AMA StyleEva Masero Rubio, Rogério Pais Dionísio, Pedro Miguel Baptista Torres. Industrial IoT Devices and Cyber-Physical Production Systems: Review and Use Case. Lecture Notes in Electrical Engineering. 2018; ():292-298.
Chicago/Turabian StyleEva Masero Rubio; Rogério Pais Dionísio; Pedro Miguel Baptista Torres. 2018. "Industrial IoT Devices and Cyber-Physical Production Systems: Review and Use Case." Lecture Notes in Electrical Engineering , no. : 292-298.
This paper approaches the permanent struggle that less favoured regions must deal with regarding economic opportunities, job creation, income and regional production increase. Since an increased demand for nature and protected areas is taking place in a more and more urban society, some innovation potential is emerging. The study we have developed is focused on sustainable tourism practices in a specific natural area (Malcata Mountain Reserve), using electric mobility, which is known for its zero emission, no polluting and noise-free travelling. The broader study is carried out under the Interreg Funding Program in the Moveletur Project. Our aims are to promote a model of sustainable and clean tourism for visitors of natural areas, to create a network of green tourism itineraries connecting sites of natural and/or cultural value using electric vehicles and to empower tourism sector entrepreneurs with a new added-value service for their activity. Joint work with other natural areas is required to increase results. After the project is finished (by the end of 2018) there will be an improved knowledge about natural and cultural values that natural areas hold and that can be used for visitors’ enjoyment. There will be a more respectful way of ‘doing tourism’ in natural areas and hopefully it will address employment creation and improved territorial competitiveness. Finally, tourism experiences will have more quality and the project will promote smart villages’ further development by using technological components.
George Ramos; Rogerio Dionisio; Paula Pereira. Linking Sustainable Tourism and Electric Mobility – Moveletur. Lecture Notes in Electrical Engineering 2018, 985 -991.
AMA StyleGeorge Ramos, Rogerio Dionisio, Paula Pereira. Linking Sustainable Tourism and Electric Mobility – Moveletur. Lecture Notes in Electrical Engineering. 2018; ():985-991.
Chicago/Turabian StyleGeorge Ramos; Rogerio Dionisio; Paula Pereira. 2018. "Linking Sustainable Tourism and Electric Mobility – Moveletur." Lecture Notes in Electrical Engineering , no. : 985-991.
The increasing acceptance of WiFi has created unprecedented levels of congestion in the unlicensed frequency bands, especially in densely populated areas. This results mainly because of the unmanaged interference and uncoordinated operation between WiFi access points. Radio Environment Maps (REM) have been suggested as a support for coordination strategies that optimize the overall WiFi network performance. In this context, the main objective of this experiment is to assess the benefit of a coordinated management of radio resources in dense WiFi networks at 5 GHz band, using REMs for indoor scenarios. It was shown that REMs can detect the presence of interfering links on the network or coverage holes, and a suitable coordination strategy can use this information to reconfigure Access Points (AP) channel assignment and re-establish the client connection, at a cost of diminishing the aggregate throughput of the network. The technique of AP hand-off was tested to balance the load from one AP to another. Using REMs, the Radio Resource Management (RRM) strategy could reconfigure the network to optimize the client distribution among available APs. Although the aggregate throughput is lower after load balancing, the RRM could increase the throughput of the overloaded AP.
Rogerio Dionisio; Paulo Marques; Tiago Alves; Jorge Ribeiro. Experimental assessment of RRM techniques in 5 GHz dense WiFi networks using REMs. 2018 19th IEEE Mediterranean Electrotechnical Conference (MELECON) 2018, 80 -85.
AMA StyleRogerio Dionisio, Paulo Marques, Tiago Alves, Jorge Ribeiro. Experimental assessment of RRM techniques in 5 GHz dense WiFi networks using REMs. 2018 19th IEEE Mediterranean Electrotechnical Conference (MELECON). 2018; ():80-85.
Chicago/Turabian StyleRogerio Dionisio; Paulo Marques; Tiago Alves; Jorge Ribeiro. 2018. "Experimental assessment of RRM techniques in 5 GHz dense WiFi networks using REMs." 2018 19th IEEE Mediterranean Electrotechnical Conference (MELECON) , no. : 80-85.
The concept of smart cities grew with the need to rethink the use of urban spaces based on the constant technological advances and respecting sustainability. Today the urbanism and the methodologies to think about the city are changing, as citizens want more access to digital information on almost everything. Therefore, cities need to be planned and equipped with infrastructures that enable connectivity between the citizens’ devices and the digital information. This challenge raises technological problems, such as traffic management, in an attempt to guarantee fair network access to all users. Solutions based on wireless resource management and self-organizing networks are key when design the connectivity for these smart cities. This paper presents a study on forecasting the daily load of Wi-Fi city hotspots, taking also in consideration the weather conditions. This is particularly interesting to predict the network load and resource requirements needed to ensure proper quality of service is provided to the hotspot users. The study was performed in a Wi-Fi hotspot located in the city of Castelo Branco, Portugal. The results show the ARIMA model is capable of identifying and forecasting seasonality events for one week in advance including its capability to correlate the number of hotspot users with weather conditions.
Hugo Marques; Pedro M. B. Torres; Rogério Dionísio; Jonathan Rodriguez. Load Forecasting in WiFi Access Points over the LTE Network. Inventive Computation and Information Technologies 2017, 20, 132 -137.
AMA StyleHugo Marques, Pedro M. B. Torres, Rogério Dionísio, Jonathan Rodriguez. Load Forecasting in WiFi Access Points over the LTE Network. Inventive Computation and Information Technologies. 2017; 20 ():132-137.
Chicago/Turabian StyleHugo Marques; Pedro M. B. Torres; Rogério Dionísio; Jonathan Rodriguez. 2017. "Load Forecasting in WiFi Access Points over the LTE Network." Inventive Computation and Information Technologies 20, no. : 132-137.
Pedro Torres; Paulo Marques; Hugo Marques; Rogerio Dionisio; Tiago Alves; Luis Pereira; Jorge Ribeiro. Data analytics for forecasting cell congestion on LTE networks. 2017 Network Traffic Measurement and Analysis Conference (TMA) 2017, 1 .
AMA StylePedro Torres, Paulo Marques, Hugo Marques, Rogerio Dionisio, Tiago Alves, Luis Pereira, Jorge Ribeiro. Data analytics for forecasting cell congestion on LTE networks. 2017 Network Traffic Measurement and Analysis Conference (TMA). 2017; ():1.
Chicago/Turabian StylePedro Torres; Paulo Marques; Hugo Marques; Rogerio Dionisio; Tiago Alves; Luis Pereira; Jorge Ribeiro. 2017. "Data analytics for forecasting cell congestion on LTE networks." 2017 Network Traffic Measurement and Analysis Conference (TMA) , no. : 1.
To gain competitive advantage in today's mobile market, cellular network testing, monitoring and improving customer experience is crucial. Today independent benchmarking companies are hired by mobile operators to run drive tests in a certain geographical areas. The high cost for running these tests results in a low frequency of execution, typically this benchmarking is executed no more than two or three times per year, which is not sufficient to follow the dynamics of an LTE network in a dense urban area. The majority of the drive testing costs come from the car, driver, and the in-car technician. Another approach is to take advantage of existing transportation companies to carry on network benchmarking services to Mobile Network Operators. Unattended measurement nodes can be deployed in existing transportation fleets without the need for dedicated field personnel, reducing the cost of testing up to 70%. This demo uses nodes placed in buses, available in several cities in Europe, to create and validate an automatic LTE network benchmark. The tool allows an easy comparative analyses of mobile network quality of Service and quality of experience parameters based on the operators raw data.
Rogerio Dionisio; Paulo Marques; Hugo Marques; Tiago Alves; Luis Pereira; Fernando Silva; Jorge Ribeiro. Affordable LTE network benchmarking based on transport fleets. 2017 4th [email protected] Conference (exp.at'17) 2017, 115 -116.
AMA StyleRogerio Dionisio, Paulo Marques, Hugo Marques, Tiago Alves, Luis Pereira, Fernando Silva, Jorge Ribeiro. Affordable LTE network benchmarking based on transport fleets. 2017 4th [email protected] Conference (exp.at'17). 2017; ():115-116.
Chicago/Turabian StyleRogerio Dionisio; Paulo Marques; Hugo Marques; Tiago Alves; Luis Pereira; Fernando Silva; Jorge Ribeiro. 2017. "Affordable LTE network benchmarking based on transport fleets." 2017 4th [email protected] Conference (exp.at'17) , no. : 115-116.
Rogerio Pais Dionisio. Interferometry Applications in All-Optical Communications Networks. Optical Interferometry 2017, 1 .
AMA StyleRogerio Pais Dionisio. Interferometry Applications in All-Optical Communications Networks. Optical Interferometry. 2017; ():1.
Chicago/Turabian StyleRogerio Pais Dionisio. 2017. "Interferometry Applications in All-Optical Communications Networks." Optical Interferometry , no. : 1.
This chapter describes outdoor transmission tests and field measurements in TV white spaces (TVWS) carried out in Europe. TVWS Measurements in Germany showed that the extended Hata model is appropriate to describe the path loss over distances up to a few kilometers. During the TVWS trial in Slovenia, we combine infrastructure sensing with geo-location database access to protect not only DVB-T, but also wireless microphone (WM) signals from TVWS devices interference.
Rogério Dionísio; José Ribeiro; Jorge Ribeiro; Paulo Marques; Jonathan Rodriguez. TV White Spaces with Geo-Location Database Access. Spectrum Sharing 2015, 481 -512.
AMA StyleRogério Dionísio, José Ribeiro, Jorge Ribeiro, Paulo Marques, Jonathan Rodriguez. TV White Spaces with Geo-Location Database Access. Spectrum Sharing. 2015; ():481-512.
Chicago/Turabian StyleRogério Dionísio; José Ribeiro; Jorge Ribeiro; Paulo Marques; Jonathan Rodriguez. 2015. "TV White Spaces with Geo-Location Database Access." Spectrum Sharing , no. : 481-512.
This chapter provides an overview on European Telecommunications Standards Institute (ETSI) activities related to opportunistic spectrum sharing technology with a specific focus on (TV) white spaces. Key use cases are outlined and a novel approach for a coordinated and an uncoordinated approach for accessing the spectrum resource is given. A spectrum coordinator is indeed introduced in order to handle resource management. Furthermore, database system design and inter‐database communication solutions are discussed as they are introduced by ETSI. Finally, various sensing mechanisms are detailed, which allow to monitor the radio environment and to feed decision‐making components correspondingly.
Markus Dominik Mueck; Naotaka Sato; Chen Sun; Martino Freda; Pekka Ojanen; Ng Zhou; Junfeng Xiao; Rogério Pais Dionisio; Paulo Marques. ETSI Opportunistic Spectrum Sharing Technology for (TV) White Spaces. Spectrum Sharing 2015, 605 -630.
AMA StyleMarkus Dominik Mueck, Naotaka Sato, Chen Sun, Martino Freda, Pekka Ojanen, Ng Zhou, Junfeng Xiao, Rogério Pais Dionisio, Paulo Marques. ETSI Opportunistic Spectrum Sharing Technology for (TV) White Spaces. Spectrum Sharing. 2015; ():605-630.
Chicago/Turabian StyleMarkus Dominik Mueck; Naotaka Sato; Chen Sun; Martino Freda; Pekka Ojanen; Ng Zhou; Junfeng Xiao; Rogério Pais Dionisio; Paulo Marques. 2015. "ETSI Opportunistic Spectrum Sharing Technology for (TV) White Spaces." Spectrum Sharing , no. : 605-630.
Rogério Dionísio; Paulo Marques; Jonathan Rodriguez. Experimental Assessment of a Propagation Model for TV White Spaces. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2015, 284 -290.
AMA StyleRogério Dionísio, Paulo Marques, Jonathan Rodriguez. Experimental Assessment of a Propagation Model for TV White Spaces. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. 2015; ():284-290.
Chicago/Turabian StyleRogério Dionísio; Paulo Marques; Jonathan Rodriguez. 2015. "Experimental Assessment of a Propagation Model for TV White Spaces." Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering , no. : 284-290.
TV White Spaces (TVWS) technology allows wireless devices to opportunistically use locally-available TV channels enabled by a geolocation database. The UK regulator Ofcom has initiated a pilot of TVWS technology in the UK. This paper concerns a large- scale series of trials under that pilot. The purposes are to test aspects of white space technology, including the white space device and geolocation database interactions, the validity of the channel availability/powers calculations by the database and associated interference effects on primary services, and the performances of the white space devices, among others. An additional key purpose is to perform research investigations such as on aggregation of TVWS resources with conventional resources and also aggregation solely within TVWS, secondary coexistence issues and means to mitigate such issues, and primary coexistence issues under challenging deployment geometries, among others. This paper provides an update on the trials, giving an overview of their objectives and characteristics, some aspects that have been covered, and some early results and observations.
Oliver Holland; Shuyu Ping; Nishanth Sastry; Pravir Chawdhry; Jean-Marc Chareau; James Bishop; Hong Xing; Suleyman Taskafa; Adnan Aijaz; Michele Bavaro; Philippe Viaud; Tiziano Pinato; Emanuele Anguili; Mohammad Reza Akhavan; Julie McCann; Yue Gao; Zhijin Qin; Qianyun Zhang; Raymond Knopp; Florian Kaltenberger; Dominique Nussbaum; Rogerio Dionisio; José Carlos Ribeiro; Paulo Marques; Juhani Hallio; Mikko Jakobsson; Jani Auranen; Reijo Ekman; Heikki Kokkinen; Jarkko Paavola; Arto Kivinen; Tomaz Solc; Mihael Mohorcic; Ha-Nguyen Tran; Kentaro Ishizu; Takeshi Matsumura; Kazuo Ibuka; Hiroshi Harada; Keiichi Mizutani. Some Initial Results and Observations from a Series of Trials within the Ofcom TV White Spaces Pilot. 2015 IEEE 81st Vehicular Technology Conference (VTC Spring) 2015, 1 -7.
AMA StyleOliver Holland, Shuyu Ping, Nishanth Sastry, Pravir Chawdhry, Jean-Marc Chareau, James Bishop, Hong Xing, Suleyman Taskafa, Adnan Aijaz, Michele Bavaro, Philippe Viaud, Tiziano Pinato, Emanuele Anguili, Mohammad Reza Akhavan, Julie McCann, Yue Gao, Zhijin Qin, Qianyun Zhang, Raymond Knopp, Florian Kaltenberger, Dominique Nussbaum, Rogerio Dionisio, José Carlos Ribeiro, Paulo Marques, Juhani Hallio, Mikko Jakobsson, Jani Auranen, Reijo Ekman, Heikki Kokkinen, Jarkko Paavola, Arto Kivinen, Tomaz Solc, Mihael Mohorcic, Ha-Nguyen Tran, Kentaro Ishizu, Takeshi Matsumura, Kazuo Ibuka, Hiroshi Harada, Keiichi Mizutani. Some Initial Results and Observations from a Series of Trials within the Ofcom TV White Spaces Pilot. 2015 IEEE 81st Vehicular Technology Conference (VTC Spring). 2015; ():1-7.
Chicago/Turabian StyleOliver Holland; Shuyu Ping; Nishanth Sastry; Pravir Chawdhry; Jean-Marc Chareau; James Bishop; Hong Xing; Suleyman Taskafa; Adnan Aijaz; Michele Bavaro; Philippe Viaud; Tiziano Pinato; Emanuele Anguili; Mohammad Reza Akhavan; Julie McCann; Yue Gao; Zhijin Qin; Qianyun Zhang; Raymond Knopp; Florian Kaltenberger; Dominique Nussbaum; Rogerio Dionisio; José Carlos Ribeiro; Paulo Marques; Juhani Hallio; Mikko Jakobsson; Jani Auranen; Reijo Ekman; Heikki Kokkinen; Jarkko Paavola; Arto Kivinen; Tomaz Solc; Mihael Mohorcic; Ha-Nguyen Tran; Kentaro Ishizu; Takeshi Matsumura; Kazuo Ibuka; Hiroshi Harada; Keiichi Mizutani. 2015. "Some Initial Results and Observations from a Series of Trials within the Ofcom TV White Spaces Pilot." 2015 IEEE 81st Vehicular Technology Conference (VTC Spring) , no. : 1-7.