This file was created by the TYPO3 extension bib --- Timezone: CEST Creation date: 2024-04-16 Creation time: 08-28-48 --- Number of references 4 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