Title :
Complements to the Online Phase in the Horus System
Author :
Fang, Chengxiao ; Liang, Xiaohui
Author_Institution :
State Key Lab. of Virtual Reality Technol. & Syst., Beihang Univ., Beijing
Abstract :
Horus is an RF-based location determination system. It is currently implemented in the context of 802.11 wireless LANs. The system uses the signal strength returned from the access points to infer the user location. The signal strength of AP corrected in the online can not be found in the set of radio map sometimes. As result, we can not get the probability and infer the location of user. Papers about Horus tell nothing about it. This paper aims to give the reason and approach to deal with this phenomenon.
Keywords :
radio direction-finding; wireless LAN; 802.11 wireless LAN; Horus system; RF-based location determination system; signal strength; user location; Application software; Communication system control; Context; Control systems; Inference algorithms; Phase estimation; Technology management; Virtual reality; Wireless LAN; Wireless networks;
Conference_Titel :
Computing, Communication, Control, and Management, 2008. CCCM '08. ISECS International Colloquium on
Conference_Location :
Guangzhou
Print_ISBN :
978-0-7695-3290-5
DOI :
10.1109/CCCM.2008.299
