Josef Ringert

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Europe is on the way to build its own Global Navigation Satellite System (GNSS) independent from the existing U.S. and Russian systems already in orbit. The expenses of EUR 3.2 billion are only a fraction of the expected revenues and social benefits of Europe's system - Galileo. Location based services (LBS) have ever been recognised as the primary future(More)
In recent years, location and context aware systems have been presented for the indexing and annotation of both location and user state relevant information to the user. These systems were mostly based on geo-referencing from GPS signals, and driven by changes of the system state in dependence on situations that impact the overall system performance (user(More)
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