1st International ICST Workshop on Ubiquitous Access Control

Research Article

LAAC: A Location-Aware Access Control Protocol

  • @INPROCEEDINGS{10.1109/MOBIQW.2006.361757,
        author={YounSun Cho and Lichun  Bao and Michael T.  Goodrich},
        title={LAAC: A Location-Aware Access Control Protocol},
        proceedings={1st International ICST Workshop on Ubiquitous Access Control},
  • YounSun Cho
    Lichun Bao
    Michael T. Goodrich
    Year: 2007
    LAAC: A Location-Aware Access Control Protocol
    DOI: 10.1109/MOBIQW.2006.361757
YounSun Cho1, Lichun Bao1, Michael T. Goodrich1
  • 1: Dept. of Comput. Sci., California Univ., Irvine, CA


With the proliferation of wireless communication technologies and mobile computing devices, research interest has grown for location-aware systems and services. We propose LAAC, a novel location-aware access control protocol based on a coarsely defined location area that is enclosed by overlapping areas of multiple access points. Accordingly, a location key for location claim is derived from the overlapping access points' beacon information. In addition, the fact that a mobile device derives the location key enables us to track the location of the mobile device. LAAC does not require additional hardwares such as GPS or ultrasonic devices in order to localize the mobile devices. We enumerate possible attacks to the system and analyze their countermeasures. The computational and communicational costs and the memory requirement are evaluated, and the simulation results are presented