01371101

Component

Vehicular ad-hoc networks (VANets) form when vehicles are equipped with devices capable of short-range wireless communication. Accurate wireless positioning of VANets is a challenging task, which requires a robust wireless positioning algorithm. In this study, the trilateral and quadrilateral algorithms are proposed to estimate the moving vehicle node¡¯s position in VANets based on the wireless signal¡¯s ¡°distance-loss¡± model and geometric relationship. Furthermore, a wireless positioning experimental platform was created to test the positioning algorithm applications in field. The test field is an open area with one moving node and four fixed nodes. The experimental results show that when the moving node is inside the fixed nodes, the positioning accuracy is much higher than the case that the moving node is outside the fixed nodes; when the moving node is located in the middle of the experimental field, the positioning accuracy is higher than located at the corner areas in the test field; and the quadrilateral positioning method has a better positioning accuracy.

This paper was sponsored by TRB committee AHB15 Intelligent Transportation Systems

01362476

12-2003

English

17p

2012

Transportation Research Board 91st Annual Meeting

Digital/other

Figures; References; Tables

Algorithms; Data fusion; Global Positioning System; Intelligent transportation systems; Vehicle to vehicle communications; Vehicular ad hoc networks; Wireless communication systems

Data and Information Technology; Highways; Vehicles and Equipment; I70: Traffic and Transport; I90: Vehicles

Transportation Research Board Annual Meeting 2012 Paper #12-2003

TRIS, TRB

Feb 8 2012 5:07PM