VLOCI2: Improving 2D location coordinates using distance measurements in GPS-equipped VANETs

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Ahammed, Farhan; Taheri, Javid; Zomaya, Albert; Ott, Max


2011-10-31


Conference Material


ACM/IEEE International Conference on Modelling, Analysis and Simulation of Wireless and Mobile Systems (MSWIM)


Miami Beach, USA


8


Vehicular Ad-Hoc Networks (VANETs) are wireless networks with mobile nodes (vehicles) which connect in an ad-hoc manner. Many vehicles use the Global Positioning System (GPS) to provide their locations. However the inaccuracy of GPS devices leads to some vehicles incorrectly assuming they are located at different positions and sometimes even on different roads. VANETs can be used to increase the accuracy of each vehicle's computed location by allowing vehicles to share information regarding the measured distances to neighbouring vehicles. This paper looks at improving the coordinates provided by the GPS devices, given that erroneous measurements are present in the system. The algorithm VLOCI2 is an extension of the VLOCI algorithm---our previous approach, designed to handle vehicles on a single lane---by providing location improvement on multi-laned roads. VLOCI2 is shown to perform efficiently when erroneous distance measurements are present in the environment/computations.


vehicular ad hoc networks, localization, GPS, distance measurements, location improvement/refinement


http://mswimconf.com/2011/


nicta:4768


Ahammed, Farhan; Taheri, Javid; Zomaya, Albert; Ott, Max. VLOCI2: Improving 2D location coordinates using distance measurements in GPS-equipped VANETs.[Conference Material]. 2011-10-31. <a href="http://hdl.handle.net/102.100.100/102580?index=1" target="_blank">http://hdl.handle.net/102.100.100/102580?index=1</a>



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