This file was created by the TYPO3 extension bib --- Timezone: CEST Creation date: 2024-04-25 Creation time: 16-38-51 --- Number of references 9 inproceedings VaegsABW2011 2011 9 16 77-80 A tremendous amount of energy is wasted today, because computing devices are left running all the time even though they are needed only sporadically. Especially in office environments many devices (e.g., printers) are very rarely turned off, because they need to be available from time to time and because it is inconvenient having to switch them on and off manually. Existing solutions, such as Wake-on-LAN (WoL), provide support for managing the power consumption of the network devices remotely using an always-on data channel. However, these solutions are inefficient, because power to the network interface has to be maintained even when the host system is asleep just to ensure remote accessibility. We propose a Wireless Sensor Network (WSN) based out-of-band signaling architecture for network interfaces which minimizes the systems’ power consumption during the large idle periods when nobody is using them. This is done by separating the data and control channels on the Internet-enabled devices using a low-power out-of-band signaling channel based on battery driven, energy scavenging devices. Unlike existing solutions, which only allow parts of the system to go in sleep modes, our architecture allows the whole system, including the main power supply, to be shut down. Our initial investigation indicates a significant reduction in energy consumption of devices during idle times compared to the existing in-band signaling mechanisms such as WoL. Energy Saving, Wireless Sensor Network, Out-of-Band Signalling https://www.comsys.rwth-aachen.de/fileadmin/papers/2011/2011-vaegs-fgsn-ecocom.pdf Online Proceedings of the 10th GI/ITG KuVS Fachgespräch Drahtlose Sensornetze (FGSN), Paderborn, Germany RWTH Aachen University Paderborn, Germany 10th GI/ITG KuVS Fachgespräch Drahtlose Sensornetze (FGSN11) September 15-16, 2011 en 1 TobiasVaegs Muhammad HamadAlizai Jó AgilaBitsch Link KlausWehrle inproceedings 2011-wintech-alizai-tinywifi 2011 9 19-27 tinywifi fileadmin/papers/2011/2010-09-tinywifi-alizai-wintech.pdf Online ACM

New York, NY, USA

Proceedings of the Sixth ACM International Workshop on Wireless Network Testbeds, Experimental evaluation and Characterization (WiNTECH ), Las Vegas, NV, USA Las Vegas, NV, USA The 17th Annual International Conference on Mobile Computing and Networking September 2011 en 978-1-4503-0867-0 10.1145/2030718.2030725 1 Muhammad HamadAlizai HannoWirtz BernhardKirchen TobiasVaegs OmprakashGnawali KlausWehrle inproceedings 2011-ipsn-alizai-pad 2011 4 fileadmin/papers/2011/2011-ipsn-alizai-pad.pdf Online ACM

New York, NY, USA

Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2011), Chicago, IL, USA Chicago, IL, USA en 978-1-60558-988-6 1 Muhammad HamadAlizai TobiasVaegs OlafLandsiedel StefanGötz Jó AgilaBitsch Link KlausWehrle inproceedings OttHLVK2011 2011 3 21 Content sharing using personal web pages, blogs, or online social networks is a common means for people to maintain contact with their friends, colleagues, and acquaintances. While such means are essential to overcome distances, using infrastructure services for location-based services may not be desirable. In this paper, we analyze a fully distributed variant of an ephemeral content sharing service, solely dependent on the mobile devices in the vicinity using principles of opportunistic networking. The net result is a best effort service for floating content in which: 1) information dissemination is geographically limited; 2) the lifetime and spreading of information depends on interested nodes being available; 3) content can only be created and distributed locally; and 4) content can only be added, but not explicitly deleted. First we present our system design and summarize its analytical modeling. Then we perform extensive evaluation for a map-based mobility model in downtown Helsinki to assess the operational range for floating content, which, at the same time also validate the analytical results obtained for a more abstract model of the system. https://www.comsys.rwth-aachen.de/fileadmin/papers/2011/2011-percom-vaegs-floatingcontent.pdf Online IEEE

Piscataway, NJ, USA

Proceedings of the 9th IEEE International Conference on Pervasive Computing and Communications (PerCom 2011), Seattle, WA, USA Seattle, USA 9th IEEE International Conference on Pervasive Computing and Communications March 21 - 25, 2011 en 978-1-4244-9529-0 1 JörgOtt EsaHyytiä PasiLassila TobiasVaegs JussiKangasharju inproceedings 201004vaegsieeestudentpad 2010 5 20 5-8 The lack of permanent network infrastructure and often unplanned deployments in many multihop wireless communication scenarios restrict nodes to determine their own addresses based on the underlying connectivity in the network. However, due to unreliable connectivity and rapidly changing link qualities in wireless networks, establishing uniform addressing and stable point-to-point routing is challenging. In this paper, we present Statistical Vector Routing (SVR), a virtual coordinates based addressing and routing mechanism that efficiently deals with dynamic communication links in wireless networks. It assigns stable probabilistic addresses to nodes without the need to pessimistically estimate links over longer periods of time. The routing metric predicts the current location of a node in its address distribution. Our prototype implementation over real testbeds indicates that SVR, when compared to current approaches, achieves 3 times more stable addressing, reduces the magnitude of change in addresses by 2-10 times, and minimizes the hop distance and transmissions in the network by 10-15%. wld https://www.comsys.rwth-aachen.de/fileadmin/papers/2010/2010-vaegs-wehrle-probabilistic_addressing.pdf Print Hamburg University of Technology

Hamburg, Germany

Proceedings of the 2nd IEEE Student Conference, Hamburg University of Technology, Hamburg, Germany Hamburg, Germany 2nd IEEE Student Conference, Hamburg University of Technology May 20-21, 2010 en TobiasVaegs Muhammad HamadAlizai KlausWehrle inproceedings 20104-IPSN-alizai-svr 2010 4 12 366-367 We present Statistical Vector Routing (SVR), a protocol that efficiently deals with communication link dynamics in wireless networks. It assigns virtual coordinates to nodes based on the statistical distribution of their distance from a small set of beacons. The distance metric predicts the current location of a node in its address distribution. Our initial results from a prototype implementation over real testbeds demonstrate the feasibility of SVR. wld https://www.comsys.rwth-aachen.de/fileadmin/papers/2010/2010-alizai-ipsn-pad.pdf http://portal.acm.org/citation.cfm?id=1791257 Print ACM

New York, NY, USA

Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2010), Stockholm, Sweden Stockholm, Sweden 9th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2010) April 12-16, 2010 en 978-1-60558-988-6 1 Muhammad HamadAlizai TobiasVaegs OlafLandsiedel RaimondasSasnauskas KlausWehrle inproceedings 201004vaegsjscsvr 2010 4 7 279-280 We present Statistical Vector Routing (SVR), a protocol that efficiently deals with the dynamics shown by communication links of wireless networks. It assigns virtual coordinates to nodes based on the statistical distribution of their distance from a small set of beacons. The distance metric predicts the current location of a node in its address distribution. Our initial results from a prototype implementation over real testbeds demonstrate the feasibility of SVR. https://www.comsys.rwth-aachen.de/fileadmin/papers/2010/2010-alizai-ipsn-pad.pdf Poster Print Hans K. Kaiser and Raimund Kirner Vienna University of Technology

Karlsplatz 13, 1040 Vienna, Austria

Proceedings of the Junior Scientist Conference 2010, Vienna, Austria Vienna, Austria The Junior Scientist Conference April 7-9, 2010 en 978-3-200-01797-9 TobiasVaegs KlausWehrle article VaegsDHH2010 International Journal of Technology Enhanced Learning (IJTEL) 2010 2 1/2 21-40 Gaming has undergone a transition from a niche hobby to a part of everyday culture. This transition, along with the advance in the use of the internet, has created a new kind of social environment, commonly known as virtual life. This paper presents the survey results of over 1000 gamers worldwide, in which they tell us how gaming affected their lives – both virtual and real – with regard to their career, relationships and social life. The analysis of the answers disproves common stereotypes about gamers, shows areas where gaming can very well be beneficial and where there are still problems. video games, online games, learning by playing, soft skills, transferable skills, motivation, conflicts, social skills, careers, relationships, communities, technical competence, gaming, virtual life, social life, gamers https://www.comsys.rwth-aachen.de/fileadmin/papers/2010/2010-vaegs-JTEL-Gaming.pdf Martin Wolpers Inderscience Publishers

Geneva, SWITZERLAND

en 1753-5255 10.1504/IJTEL.2010.031258 1 TobiasVaegs DarkoDugosija StephanHackenbracht AnnaHannemann inproceedings DugosijaEHVHM2008 2008 9 16 386 Gaming has undergone a transition from a niche hobby to a part of everyday culture, with the most prominent examples of professional gaming in Korea and the success of World of Warcraft. This transition alongside with the advance of use of the Internet has created a new kind of social environment, commonly known as virtual life. This paper presents an excerpt of the results of a survey investigating this environment with particular regard to the interaction between gaming and career, relationships as well as social groups. “Man only plays when in the full meaning of the word he is a man, and he is only completely a man when he plays. ” Schiller 1 https://www.comsys.rwth-aachen.de/fileadmin/papers/2008/2008-steg-vaegs-gaming.pdf http://www.slideshare.net/vaegs/online-gaming-as-tool-for-career-development-presentation Ralf Klamma, Nalin Sharda, Baltasar Fernández-Manjón, Harald Kosch and Marc Spaniol CEUR Workshop Proceedings Proceedings of the First International Workshop on Story-Telling and Educational Games (STEG'08) Maastricht School of Management, Maastricht, The Netherlands First International Workshop on Story-Telling and Educational Games (STEG'08) September 16, 2008 en DarkoDugosija VadiEfe StephanHackenbracht TobiasVaegs AnnaHannemann