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TCOM
2010
110views more  TCOM 2010»
15 years 4 months ago
Joint data QR-detection and Kalman estimation for OFDM time-varying Rayleigh channel complex gains
—This paper deals with the case of a high speed mobile receiver operating in an orthogonal-frequency-divisionmultiplexing (OFDM) communication system. Assuming the knowledge of d...
Hussein Hijazi, Laurent Ros
AUTOMATICA
2011
15 years 1 months ago
A frequentist approach to mapping under uncertainty
An asynchronous stochastic approximation based (Frequentist) approach is proposed for mapping using noisy mobile sensors under two different scenarios: 1) perfectly known sensor ...
Suman Chakravorty, R. Saha
ICDE
2011
IEEE
271views Database» more  ICDE 2011»
14 years 10 months ago
Authentication of moving kNN queries
— A moving kNN query continuously reports the k nearest neighbors of a moving query point. In addition to the query result, a service provider that evaluates moving queries often...
Man Lung Yiu, Eric Lo, Duncan Yung
GI
2004
Springer
15 years 12 months ago
Serverseitige Auswertung von Indexen semantischer, clientseitiger Caches in mobilen Informationssystemen
Abstract: Die Probleme drahtloser Datenübertragung motivieren das Cachen von Daten auf Mobilgeräten. Diese unterliegen aber starken Hardwarerestriktionen. Die Komplexität der Al...
Hagen Höpfner
MOBISYS
2011
ACM
14 years 9 months ago
Indoor location sensing using geo-magnetism
We present an indoor positioning system that measures location using disturbances of the Earth's magnetic field caused by structural steel elements in a building. The presenc...
Jaewoo Chung, Matt Donahoe, Chris Schmandt, Ig-Jae...