Title :
A comparison of vehicular trajectory encoding techniques
Author :
Koegel, Markus ; Baselt, Daniel ; Mauve, Martin ; Scheuermann, Björn
Author_Institution :
Dept. of Comput. Sci., Univ. of Dusseldorf, Dusseldorf, Germany
Abstract :
The transmission of vehicular trajectory information is one basic building block of car-to-car communication. Frequently, this information is transmitted as raw data, i. e., as a sequence of location measurements. In this paper we argue that, due to the laws of physics and the requirement to follow a road, vehicular mobility has very specific characteristics. Hence, vehicular trajectory information can be compressed very efficiently using domain-specific lossy compression schemes. We discuss and compare three promising approaches that can be used to this end: linear approximation, cubic splines, and clothoids.
Keywords :
data compression; encoding; mobile radio; car-to-car communication; clothoid; cubic splines; domain-specific lossy compression schemes; linear approximation; vehicular mobility; vehicular trajectory encoding techniques; vehicular trajectory information transmission; Approximation algorithms; Encoding; Interpolation; Roads; Spline; Trajectory;
Conference_Titel :
Ad Hoc Networking Workshop (Med-Hoc-Net), 2011 The 10th IFIP Annual Mediterranean
Conference_Location :
Favignana Island, Sicily
Print_ISBN :
978-1-4577-0898-5
Electronic_ISBN :
978-1-4577-0899-2
DOI :
10.1109/Med-Hoc-Net.2011.5970498
