DocumentCode :
669397
Title :
GPR based Wi-Fi radio map construction from real/virtual indoor dynamic surveying data
Author :
Youngsu Cho ; Jooyoung Kim ; MyungIn Ji ; Yangkoo Lee ; Sangjoon Park
Author_Institution :
Positioning/Navig. Technol. Res. Sect., ETRI, Daejeon, South Korea
fYear :
2013
fDate :
20-23 Oct. 2013
Firstpage :
712
Lastpage :
714
Abstract :
The scalable and cost-effective Wi-Fi radio-map construction is very important to revitalize indoor location-based service. Considering indoor dynamic surveying data for this purpose, the noble radio map construction method is necessary. With the limitation of indoor dynamic surveying, that is, only access to public area and sensitive signal strength reception, the GPR (Gaussian Process Regression) based radio-map construction method exploiting both realistic and virtual indoor dynamic surveying data is proposed and evaluated. The virtual indoor dynamic surveying data consists of a set of locations and its RSSI where the realistic surveying data is rare, by using access point´s signal propagation model. The results show that this method can obtain not only high accuracy but also high availability in the whole indoor service area even though the realistic indoor surveying data is rare and its distribution is lack of uniformity.
Keywords :
Gaussian processes; ground penetrating radar; indoor radio; regression analysis; wireless LAN; GPR based Wi-Fi radio map construction; Gaussian process regression; RSSI; access point signal propagation model; indoor dynamic surveying; indoor dynamic surveying data; indoor location-based service; received signal strength indicator; sensitive signal strength reception; Accuracy; Ground penetrating radar; Navigation; Radio frequency; GPR; Wi-Fi; dynamic; fingerprint; indoor; localization; positioning; radio map; surveying;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control, Automation and Systems (ICCAS), 2013 13th International Conference on
Conference_Location :
Gwangju
ISSN :
2093-7121
Print_ISBN :
978-89-93215-05-2
Type :
conf
DOI :
10.1109/ICCAS.2013.6703963
Filename :
6703963
Link To Document :
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