A cooperative positioning algorithm for DSRC enabled vehicular networks

Efatmaneshnik, M, Kealy, A, Alam, N and Dempster, A 2011, 'A cooperative positioning algorithm for DSRC enabled vehicular networks', Archives of Photogrammetry, Cartography and Remote Sensing (Archiwum Fo- togrametrii, Kartograi i Teledetekcji), vol. 22, pp. 117-129.


Document type: Journal Article
Collection: Journal Articles

Title A cooperative positioning algorithm for DSRC enabled vehicular networks
Author(s) Efatmaneshnik, M
Kealy, A
Alam, N
Dempster, A
Year 2011
Journal name Archives of Photogrammetry, Cartography and Remote Sensing (Archiwum Fo- togrametrii, Kartograi i Teledetekcji)
Volume number 22
Start page 117
End page 129
Total pages 13
Publisher Polish Society for Photogrammetry and Remote Sensing (Polskie Towarzystwo Fotogrametrii i Teledetekcji)
Abstract Many of the safety related applications that can be facilitated by Dedicated Short Range Communications (DSRC), such as vehicle proximity warnings, automated braking (e.g. at level crossings), speed advisories, pedestrian alerts etc., rely on a robust vehicle positioning capability such as that provided by a Global Navigation Satellite System (GNSS). Vehicles in remote areas, entering tunnels, high rise areas or any high multipath/ weak signal environment will challenge the integrity of GNSS position solutions, and ultimately the safety application it underpins. To address this challenge, this paper presents an innovative application of Cooperative Positioning techniques within vehicular networks. CP refers to any method of integrating measurements from different positioning systems and sensors in order to improve the overall quality (accuracy and reliability) of the final position solution. This paper investigates the potential of the DSRC infrastructure itself to provide an inter-vehicular ranging signal that can be used as a measurement within the CP algorithm. In this paper, time-based techniques of ranging are introduced and bandwidth requirements are investigated and presented. The robustness of the CP algorithm to inter-vehicle connection failure as well as GNSS dropouts is also demonstrated using simulation studies. Finally, the performance of the Constrained Kalman Filter used to integrate GNSS measurements with DSRC derived range estimates within a typical VANET is described and evaluated.
Subject Navigation and Position Fixing
Keyword(s) DSRC
VANET
Cooperative Positioning
Ranging
Time of Arrival
CRLB
Kalman Filtering
Robust Positioning
Copyright notice © Polish Society for Photogrammetry and Remote Sensing
ISSN 2083-2214
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