In this paper, we propose a Constrained Weighting Scheme of Inter-Vehicle Communication Assisted Localization (CWS-IVCAL). CWS-IVCAL takes into consideration the location estimate uncertainty maintained by vehicles that use IVCAL as a localization technique. In IVCAL, communication among vehicles is utilized to compute inter-vehicle distances, which are integrated with motion information and GPS measurements in order to improve vehicle location estimates in multipath environments. The proposed scheme was tested and compared with a regular IVCAL scheme in a variety of simulated road segment scenarios. CWS-IVCAL has shown resilience not just against GPS unreliability in urban environments but also against erroneous inter-vehicle distance estimates. It is evident from the simulation that utilizing more location information has the potential to lead to improvement in the robustness and accuracy of vehicle location estimation.
Toward increasing the localization accuracy of vehicles in VANET
01.11.2009
432679 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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