1st International ICST Conference on Communication System Software and MiddleWare

Research Article

WLAN Location Sharing through a Privacy Observant Architecture

  • @INPROCEEDINGS{10.1109/COMSWA.2006.1665182,
        author={Kavitha  Muthukrishnan and  Nirvana Meratnia and Maria   Lijding and Georgi  Koprinkov  and Paul Havinga},
        title={WLAN Location Sharing through a Privacy Observant Architecture},
        proceedings={1st International ICST Conference on Communication System Software and MiddleWare},
  • Kavitha Muthukrishnan
    Nirvana Meratnia
    Maria Lijding
    Georgi Koprinkov
    Paul Havinga
    Year: 2006
    WLAN Location Sharing through a Privacy Observant Architecture
    DOI: 10.1109/COMSWA.2006.1665182
Kavitha Muthukrishnan1,2,3, Nirvana Meratnia1,2,3, Maria Lijding1,2,3, Georgi Koprinkov 1,2,3, Paul Havinga1,2,3
  • 1: University of Twente, Faculty of Computer Science
  • 2: Computer Architecture Design and Test for Embedded Systems group
  • 3: P.O.Box 217, 7500 AE, Enschede, The Netherlands


In the last few years, WLAN has seen immense growth and it will continue this trend due to the fact that it provides convenient connectivity as well as high speed links. Furthermore, the infrastructure already exists in most public places and is cheap to extend. These advantages, together with the fact that WLAN covers a large area and is not restricted to line of sight, have led to developing many WLAN localization techniques and applications based on them. In this paper we present a novel calibration-free localization technique using the existing WLAN infrastructure that enables conference participants to determine their location without the need of a centralized system. The evaluation results illustrate the superiority of our technique compared to existing methods. In addition, we present a privacy observant architecture to share location information. We handle both the location of people and the resources in the infrastructure as services, which can be easily discovered and used. An important design issue for us was to avoid tracking people and giving the users control over who they share their location information with and under which conditions