Fingerprinting based localization in heterogeneous wireless networks (CROSBI ID 206779)
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Podaci o odgovornosti
Stella, Maja ; Russo, Mladen ; Begušić, Dinko
engleski
Fingerprinting based localization in heterogeneous wireless networks
Due to advances in mobile technology, context-aware applications are continuously growing in importance ; therefore, the ability of developing accurate and reliable localization system has become a necessity. Since methods based on received signal strength (RSS) fingerprints are today widely adopted and most of mobile devices comprise different wireless access technologies, it is feasible to use fingerprints from heterogeneous wireless networks (HWN) for localization purposes. In this paper we propose a novel approach for localization based on searching the area which best matches the test RSS fingerprint. We evaluated the proposed method in realistic environment in WLAN, GSM and UMTS networks, and compared it with other commonly used approaches. The results showed that our method compares favorably to others, and practically always achieves the lowest localization error. We also extended the proposed system using a model of cooperative positioning by combining the estimates obtained in the heterogeneous wireless network. The obtained results showed that with combined location estimate, significant improvement over any single system was achieved.
Location fingerprinting ; WLAN ; GSM/UMTS ; Heterogeneous wireless network ; Cooperative localization
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Podaci o izdanju
41 (15)
2014.
6738-6747
objavljeno
0957-4174
10.1016/j.eswa.2014.05.016
Povezanost rada
Elektrotehnika, Računarstvo