A Solution of Ubiquitous Location Based on GPS and Wi-Fi ULGW

Author

Fan Yang ; Aoshuang, Dong

Author_Institution

Software Coll., Northeastern Univ., Shenyang, China

Volume

2

fYear

2009

fDate

12-14 Aug. 2009

Firstpage

260

Lastpage

263

Abstract

Location-aware is becoming an important aspect of mobile computing. A core problem in location-aware service is the determination of physical location. For applications in open, outdoor areas, the Global Positioning System is a common choice. Although GPS offers near-worldwide coverage, its performance degrades indoors and in high-rise urban areas. By using signal strength, it is possible to locate Wi-Fi-enabled devices with accuracies from several meters to tens of meters indoor areas. We design a solution named ULGW (ubiquitous locating based on GPS and Wi-Fi) system. ULGW can be used for ubiquitous location by using the existing 802.11 wireless assists GPS for indoor areas. In order to providing position continuously even if the device client travels from outdoor to indoor, ULGW utilizes a kind of map service to help switching from outdoor-location to indoor location.

Keywords

Global Positioning System; indoor radio; mobile computing; ubiquitous computing; wireless LAN; GPS; Global Positioning System; Wi-Fi ULGW; Wi-Fi-enabled devices; location-aware service; map service; signal strength; Costs; Educational institutions; Global Positioning System; Hybrid intelligent systems; Mobile computing; Pervasive computing; Radiofrequency identification; Statistical analysis; Wireless LAN; Wireless communication; Location-aware; indoor; location; outdoor; ubiquitous;

fLanguage

English

Publisher

ieee

Conference_Titel

Hybrid Intelligent Systems, 2009. HIS '09. Ninth International Conference on

Conference_Location

Shenyang

Print_ISBN

978-0-7695-3745-0

Type

conf

DOI

10.1109/HIS.2009.163

Filename

5254461