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MOBISYS
2005
ACM
16 years 4 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,...
EWSN
2004
Springer
16 years 4 months ago
Context-Aware Sensors
Wireless sensor networks typically consist of a large number of sensor nodes embedded in a physical space. Such sensors are low-power devices that are primarily used for monitoring...
Eiman Elnahrawy, Badri Nath
ICC
2009
IEEE
138views Communications» more  ICC 2009»
15 years 11 months ago
Measuring Indoor Mobile Wireless Link Quality
—This paper investigates methods for link quality measurement of an indoor, time-varying wireless link. Link quality estimates are used for a number of higher-layer functions, in...
Andreas Wapf, Michael R. Souryal
SSDBM
2009
IEEE
126views Database» more  SSDBM 2009»
15 years 11 months ago
Comprehensive Optimization of Declarative Sensor Network Queries
We present a novel sensor network query processing architecture that (a) covers all the query optimization phases that are required to map a declarative query to executable code; ...
Ixent Galpin, Christian Y. A. Brenninkmeijer, Farh...
IROS
2009
IEEE
129views Robotics» more  IROS 2009»
15 years 11 months ago
Using symmetrical regions of interest to improve visual SLAM
— Simultaneous Localization and Mapping (SLAM) based on visual information is a challenging problem. One of the main problems with visual SLAM is to find good quality landmarks,...
Gert Kootstra, Lambert Schomaker