We propose a new low-complexity tracking algorithm inspired by the Fano's sequential decoding algorithm for the position tracking of a user in a WLAN-based indoor localization system. The positioning infrastructure consists of a IEEE 802.11 wireless LAN and of a radio map of the indoor environment, which is available to the user. The position estimation is performed comparing the signal strength received by the user's network card interface to the signal strength values stored in the radio map. By introducing a tracking algorithm, we improve the accuracy of the system, by reducing the number of position estimates which are less probable or impossible for a given environment topology.
A New Low-Complexity User Tracking Algorithm for WLAN-Based Positioning Systems
SEVERI, STEFANO;CHIANI, MARCO;DARDARI, DAVIDE
2007
Abstract
We propose a new low-complexity tracking algorithm inspired by the Fano's sequential decoding algorithm for the position tracking of a user in a WLAN-based indoor localization system. The positioning infrastructure consists of a IEEE 802.11 wireless LAN and of a radio map of the indoor environment, which is available to the user. The position estimation is performed comparing the signal strength received by the user's network card interface to the signal strength values stored in the radio map. By introducing a tracking algorithm, we improve the accuracy of the system, by reducing the number of position estimates which are less probable or impossible for a given environment topology.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
