In this paper we demonstrate how a cell phone can infer contextual information such as mode of travel by monitoring the fluctuation of GSM signal strength levels and neighbouring cell information. We show that these signals are stable enough to reliably distinguish between various states of movement such as walking, travelling in a motor car and remaining still. We present preliminary results for a metropolitan environment.
|Translated title of the contribution||Context Awareness via GSM Signal Strength Fluctuation|
|Title of host publication||Unknown|
|Publisher||Oesterreichische Computer Gesellschaft|
|Pages||27 - 31|
|Number of pages||4|
|Publication status||Published - May 2006|