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SIGMOD
2003
ACM
134views Database» more  SIGMOD 2003»
14 years 9 months ago
Location-based Spatial Queries
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...
Jun Zhang, Manli Zhu, Dimitris Papadias, Yufei Tao...
ADC
2009
Springer
141views Database» more  ADC 2009»
14 years 3 months ago
Event-based Communication for Location-based Service Collaboration
Location-based context-aware services for mobile users need to collaborate in disparate networks. Services come and go as the user moves and no central repository is available. Th...
Annika Hinze, Yann Michel, Lisa Eschner
IWSOS
2009
Springer
14 years 3 months ago
A Self-organizing Approach to Activity Recognition with Wireless Sensors
Abstract. In this paper, we describe an approach to activity recognition, which is based on a self-organizing, ad hoc network of body-worn sensors. It makes best use of the availab...
Clemens Holzmann, Michael Haslgrübler
DATE
2008
IEEE
116views Hardware» more  DATE 2008»
14 years 3 months ago
A Virtual Prototype for Bluetooth over Ultra Wide Band System Level Design
The industry is merging two different Wireless Personal Area Networks (WPAN) technologies: Bluetooth (BT) and WiMedia Ultra Wide Band (UWB), into a single BT over UWB (BToUWB) spe...
Alexandre Lewicki, Javier del Prado Pavon, Jacky T...
GLOBECOM
2008
IEEE
14 years 3 months ago
Cooperative and Non-Cooperative Aloha Games with Channel Capture
—Game theory has been a useful tool for the analysis of random-access based wireless networks due to their decentralized operations. This paper studies one of the most widely use...
Younggeun Cho, Fouad A. Tobagi