Abstract
The traditional task of a sensor network is data collection and aggregation for further processing. In the case of mobile networks this is usually done via wireless technologies. However, with the establishment of mobility another problem occurs: The question of the actual location of the measured data. This paper proposes a localisation scheme for Wireless LAN, where an existing WLAN infrastructure can be used not only for the collection of sensor data but also for the localisation of the data source. In this investigation localisation in sensor networks is done via the Time Difference of Arrival scheme, which has the advantage that the sensor nodes can be left unmodified.
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