Wireless LAN based indoor positioning system WiPS and its simulation

Author

Kitasuka, Teruaki ; Nakanishi, Tsuneo ; Fukuda, Akira

Author_Institution

Graduate Sch. of Information Sci. & Electr. Eng., Kyushu Univ., Fukuoka, Japan

Volume

1

fYear

2003

fDate

28-30 Aug. 2003

Firstpage

272

Abstract

The wireless LAN (Wi-Fi) infrastructure is widely used and many location-aware systems and services are researched. In this paper, wireless LAN based indoor positioning system (WiPS) is proposed. WiPS uses wireless LAN technology to measure the location of each mobile terminal. Mobile terminals equip only wireless LAN device to communicate and measure its location, so it can be made without any additional devices for location sensing. Existing wireless LAN based location systems measure the signal strength by only access points. On WiPS, each mobile terminal also measures the signal strength of neighboring terminals. Thereby WiPS can achieve more precise location estimation than existing systems, where there are many mobile terminals. We simulate the case that distance measurement has probabilistic error. The result shows improvement of accuracy in WiPS.

Keywords

indoor radio; mobile radio; wireless LAN; indoor positioning system; location sensing; location-aware systems; wireless LAN; Computational modeling; Costs; Density measurement; Global Positioning System; Information science; Large scale integration; Sensor systems; Ubiquitous computing; Wireless LAN; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and signal Processing, 2003. PACRIM. 2003 IEEE Pacific Rim Conference on

Print_ISBN

0-7803-7978-0

Type

conf

DOI

10.1109/PACRIM.2003.1235770

Filename

1235770