The Experts below are selected from a list of 45339 Experts worldwide ranked by ideXlab platform
Jari Porras - One of the best experts on this subject based on the ideXlab platform.
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Architecting and Designing Sustainable Smart City Services in a Living Lab Environment
Technologies, 2018Co-Authors: Tawseef Alam, Jari PorrasAbstract:In terms of sustainability, cities become smart when they provide smart services to the inhabitants using information and communication technologies without threatening the future of the Environment, economy, or society. However, the process of developing such sustainable smart services has certain challenges, especially in understanding the real needs of the people living in the city. Citizens or, in a wider perspective, the inhabitants of the city are the key stakeholders in the case of smart services in a city. Active involvement of the people throughout the development process is a way of successfully designing such services. On the other hand, integrating sustainability, for example, including Environmental data, into smart city services is challenging. Therefore, this research aims to combine Environmental data with regular smart city services, while engaging city inhabitants in the development process. This approach was adapted from the concept of living Lab methodology. Finally, an application developed following this method is presented and evaluated.
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Architecting and Designing Sustainable Smart City Services in Living Lab Environment
2018Co-Authors: Tawseef Alam, Jari PorrasAbstract:In terms of sustainability, cities become smart when they provide intelligent services to the inhabitants using information and communication technologies without threatening the future of the Environment, economy or the society. However, the process of developing such sustainable smart services has certain challenges, especially in understanding the real needs of the people living in the city. Inhabitants of the city or the citizens are the key stakeholders in case of smart services in a city. Active involvement of the people throughout the process is a way to design such services. On the other hand, integrating sustainability, for example including Environmental data to the smart city services has been found challenging. Therefore, this research discusses an approach on combining Environmental data with regular smart city services and to engage city inhabitants in the process, the approach that is adapted from the concept of living Lab methodology. Finally, an application has been developed to represent a smart city service following this method.
Reiner Creutzburg - One of the best experts on this subject based on the ideXlab platform.
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Social network forensics: using commercial software in a university forensics Lab Environment
Mobile Multimedia Image Processing Security and Applications 2013, 2013Co-Authors: Pavel Halkin, Knut Kröger, Reiner CreutzburgAbstract:The aim of this article is to give a practical overview of forensic investigation of social networks cases using certain commercial software packages in a university forensics Lab Environment. Students have to learn the usefulness of forensic procedures to ensure evidence collection, evidence preservation, forensic analysis, and reporting. It is demonstrated how to investigate important data from social network users. Different scenarios of investigations are presented that are well-suited for forensics Lab work in university. In particular, we focus on the new version of Belkasoft Evidence Center and compare it with other well-known tools regarding functionality, usability and capabilities.
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Examination of mobile phones in a university forensic Lab Environment
Mobile Multimedia Image Processing Security and Applications 2011, 2011Co-Authors: Silas Luttenberger, Knut Kröger, Reiner CreutzburgAbstract:The aim of this article is to show forensic investigation methods for mobile phones to students in a university forensic Lab Environment. Students have to learn the usefulness of forensic procedures to ensure evidence collection, evidence preservation, forensic analysis, and reporting. Open source tools as well as commercial forensic tools for forensic investigation of modern mobile (smart) phones are used. It is demonstrated how important data stored in the mobile device are investigated. Different scenarios of investigations are presented that are well-suited for forensics Lab work in university.
Yasmin Karimli - One of the best experts on this subject based on the ideXlab platform.
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performance and capacity of hsupa in Lab Environment
Vehicular Technology Conference, 2008Co-Authors: Jun Liu, Pablo Tapia, P Kwok, Yasmin KarimliAbstract:This paper analyzes the performance of HSUPA based on test results from a UMTS Lab trial network. Different aspects from the technology have been studied in a controlled Lab Environment, including latency reduction by HSUPA, power control efficiency and capacity. HSUPA (high speed uplink packet access) is the next logical step following the deployment of HSDPA to offer a truly 3G high speed data service with higher throughputs and reduced latency. Despite the similarities with HSDPA (such as HARQ, short TTI, NodeB scheduling), HSUPA is fundamentally different because of the use of a dedicated channel per user, called E-DCH. This results in a very different treatment of radio resources management scheme, with UL power control instead of link adaptation, or a more challenging scheduling system. The traffic scheduling is rather random in HSUPA since all data users are not synchronized with each other, and therefore a common pipe cannot be established by the network for all users as it does for the downlink. The only common resource the system can control is the uplink noise rise. In a typical UMTS network, under interference limited condition, downlink is the bottleneck. However, with the introduction of E-DCH, it is important to understand its impact to the uplink performance and capacity, especially under conditions with mixed voice and data services on one carrier. The results from our study shows a good data performance of HSUPA in data only scenarios, however there is a significant degradation on the voice service when they share the same carrier.
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VTC Spring - Performance and Capacity of HSUPA in Lab Environment
VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008Co-Authors: Jun Liu, Pablo Tapia, P Kwok, Yasmin KarimliAbstract:This paper analyzes the performance of HSUPA based on test results from a UMTS Lab trial network. Different aspects from the technology have been studied in a controlled Lab Environment, including latency reduction by HSUPA, power control efficiency and capacity. HSUPA (high speed uplink packet access) is the next logical step following the deployment of HSDPA to offer a truly 3G high speed data service with higher throughputs and reduced latency. Despite the similarities with HSDPA (such as HARQ, short TTI, NodeB scheduling), HSUPA is fundamentally different because of the use of a dedicated channel per user, called E-DCH. This results in a very different treatment of radio resources management scheme, with UL power control instead of link adaptation, or a more challenging scheduling system. The traffic scheduling is rather random in HSUPA since all data users are not synchronized with each other, and therefore a common pipe cannot be established by the network for all users as it does for the downlink. The only common resource the system can control is the uplink noise rise. In a typical UMTS network, under interference limited condition, downlink is the bottleneck. However, with the introduction of E-DCH, it is important to understand its impact to the uplink performance and capacity, especially under conditions with mixed voice and data services on one carrier. The results from our study shows a good data performance of HSUPA in data only scenarios, however there is a significant degradation on the voice service when they share the same carrier.
Bernhard Monschiebl - One of the best experts on this subject based on the ideXlab platform.
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VTC Spring - C-Roads: Elements of C-ITS Service Evaluation to Reach Interoperability in Europe within a Wide Stakeholder Network: Validation Steps and Comparative Elements Used in a Living Lab Environment in Austria
2018 IEEE 87th Vehicular Technology Conference (VTC Spring), 2018Co-Authors: Alexander Froetscher, Bernhard MonschieblAbstract:Validation of C-ITS applications is currently viewed differently in every country in Europe and in other regions of the world. The Elements of C-ITS service which are agreed between infrastructure operators/authorities and vehicle manufacturers for I2V and V2I C-ITS have not only to focus on functionality within a single pilot but also have to be interoperable with other pilots of public and private entities. A major concern of the evaluation process is the interoperability of the services in the different countries. The C-Roads platform in Europe works for interoperable C-ITS in Europe. One of the aspects discussed to achieve interoperability is the evaluation of C-ITS services in the single country to achieve interoperable C-ITS for Europe. Austria is one of the countries with an existing active operating pilot site for C-ITS and is involved in C-Roads, and the experience of C-ITS validation is used as one contribution for this EU wide process. After looking at the different messages and services used in C-ITS, this paper describes the different steps undertaken in the living Lab Environment in Vienna to ensure interoperability and system functionality in a wide network of independent stakeholders as participants. The open aspects for the current evaluation of C-ITS interoperability and the method are currently discussed and defined within C-Roads platform.
Antitza Dantcheva - One of the best experts on this subject based on the ideXlab platform.
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the liliput prototype a wearable Lab Environment for user tests of mobile telecommunication applications
Human Factors in Computing Systems, 2007Co-Authors: Peter Reichl, Peter Froehlich, Lynne Baillie, Raimung Schatz, Antitza DantchevaAbstract:User trials for future mobile telecommunication applications inherently pose several particular challenges which are difficult to meet in a traditional Lab Environment. In this paper we describe LiLiPUT (Lightweight Lab Equipment for Portable User Testing in Telecom-munications), a highly flexible wearable test system which has been realized as a fully operational prototype at the Telecommunications Research Center Vienna (ftw.). Then we illustrate how we use LiLiPUT for testing various types of mobile application in the wild.
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CHI Extended Abstracts - The LiLiPUT prototype: a wearable Lab Environment for user tests of mobile telecommunication applications
CHI '07 extended abstracts on Human factors in computing systems - CHI '07, 2007Co-Authors: Peter Reichl, Peter Froehlich, Lynne Baillie, Raimung Schatz, Antitza DantchevaAbstract:User trials for future mobile telecommunication applications inherently pose several particular challenges which are difficult to meet in a traditional Lab Environment. In this paper we describe LiLiPUT (Lightweight Lab Equipment for Portable User Testing in Telecom-munications), a highly flexible wearable test system which has been realized as a fully operational prototype at the Telecommunications Research Center Vienna (ftw.). Then we illustrate how we use LiLiPUT for testing various types of mobile application in the wild.
