The efficiency and scalability of geographical routing depend on the accuracy of location information of vehicles. Each vehicle determines its location using global positioning system (GPS) or other positioning systems. Related literature in geographical routing implicitly assumes accurate location information. However, this assumption is unrealistic considering the accuracy limitation of GPS and obstruction of signals by road side environments. The inaccurate location information results in performance degradation of geographical routing protocols in vehicular environments. In this context, this study proposes a location error resilient geographical routing (LER-GR) protocol. Rayleigh distribution-based error calculation technique is utilised for assessing error in the location of neighbouring vehicles. Kalman filter-based location prediction and correction technique is developed to predict the location of the neighbouring vehicles. The next forwarding vehicle is selected based on the least error in location information. Simulations are carried out to evaluate the performance of LER-GR in realistic environments, considering junction-based as well as real map-based road networks. The comparative performance evaluation attests the location error resilient capability of LER-GR in a vehicular environment.
Location error resilient geographical routing for vehicular ad-hoc networks
IET Intelligent Transport Systems ; 11 , 8 ; 450-458
2017-06-22
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
global positioning system , vehicular environment , Rayleigh distribution , routing protocols , VANET , GPS , road side environments , Global Positioning System , vehicular ad-hoc networks , LER-GR protocol , correction technique , Kalman filters , Rayleigh channels , vehicular ad hoc networks , location prediction , real map-based road networks , location error resilient geographical routing , geographical routing protocols , Kalman filter , error calculation technique
Metadata by IET is licensed under CC BY 3.0
Location error resilient geographical routing for vehicular ad‐hoc networks
Wiley | 2017
|An SDN empowered location aware routing for energy efficient next generation vehicular networks
DOAJ | 2021
|