@misc{elediasc12331,
           title = {A GSM signals based positioning technique for mobile applications},
           month = {October},
          author = {Renzo Azaro and Massimo Donelli and Manuel Benedetti and Paolo Rocca and Andrea Massa},
            year = {2007},
             url = {http://www.eledia.org/students-reports/331/},
        abstract = {A mobile positioning system based on GSM signals analysis and on a cooperative stochastic optimization algorithm is presented. The proposed technique is intended as a backup solution in those applicative scenarios where the GPS system fails to work (e.g., urban canyons). The hardware architecture of the system and the positioning algorithm are described and validated by means of a numerical assessment.}
}