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» Deploying a Wireless Sensor Network on an Active Volcano
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MOBISYS
2005
ACM
14 years 7 months ago
A relative positioning system for co-located mobile devices
If a mobile computing device knows how it is positioned and oriented in relation to other devices nearby, then it can provide enhanced support for multi-device and multi-user inte...
Mike Hazas, Christian Kray, Hans-Werner Gellersen,...
VTC
2007
IEEE
183views Communications» more  VTC 2007»
14 years 1 months ago
Multimedia over 802.15.4 and ZigBee Networks for Ambient Environment Control
—WPAN technologies such as IEEE 802.15.4 have been introduced to allow for energy-efficient communication of control and sensor data. In certain application areas, it is benefici...
Ralf Burda, Christian Wietfeld
EWSN
2009
Springer
14 years 7 months ago
Sundial: Using Sunlight to Reconstruct Global Timestamps
Abstract. This paper investigates postmortem timestamp reconstruction in environmental monitoring networks. In the absence of a timesynchronization protocol, these networks use mul...
Jayant Gupchup, Razvan Musaloiu-Elefteri, Alexande...
MOBIHOC
2005
ACM
14 years 7 months ago
Sextant: a unified node and event localization framework using non-convex constraints
Determining node and event locations is a canonical task for many wireless network applications. Yet dedicated infrastructure for determining position information is expensive, en...
Emin Gün Sirer, Rohan Murty, Saikat Guha
FGCN
2008
IEEE
199views Communications» more  FGCN 2008»
14 years 1 months ago
A Context-Sensitive Rule-Based Architecture for a Smart Building Environment
In a smart building environment nomadic users can benefit from specialised contextsensitive services. These can increase productivity and offer an improved lifestyle for users. Th...
John Herbert, John O'Donoghue, Xiang Chen