Semantic Geocast Using a Self-organizing Infrastructure

  • Jörg Roth
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2877)


Geocast mechanisms allow a sender to transmit network packets to receivers residing at a certain geographical region. Geocast forms the basis for a number of location-based services, such as announcement services, advertisement services or friend-finders. In this paper, we introduce the notion of semantic geocast, where a target area is specified by its meaning. A sender can broadcast messages to, e.g., a city centre or a specific building, without precisely knowing the physical co-ordinates. We implemented semantic geocast on top of our self-organizing Location Server Infrastructure (LSI), which reflects a location domain model especially designed to cover the needs of mobile users. As our infrastructure is self-organizing, it is flexible and easy to extend. We consider scalability and stability issues. LSI and its geocast mechanism is fully implemented and tested. Evaluations show the effectiveness of our approach.


Mobile Node Mobile User Location Server Ubiquitous Computing Target Domain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Jörg Roth
    • 1
  1. 1.Department for Computer ScienceUniversity of HagenHagenGermany

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