Communication Technologies for Vehicles: 8th International by Mohamed Kassab, Marion Berbineau, Alexey Vinel, Magnus

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By Mohamed Kassab, Marion Berbineau, Alexey Vinel, Magnus Jonsson, Fabien Garcia, José Soler

This ebook constitutes the lawsuits of the eighth overseas Workshop on verbal exchange applied sciences for automobiles, Nets4Cars/Nets4Trains/Nets4Aircraft 2015, held in Sousse, Tunisia, in might 2015. The 20 papers awarded during this quantity have been conscientiously reviewed and chosen from 27 submissions. The contributions are equipped in topical sections named: highway; rail; and air.

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Communication Technologies for Vehicles: 8th International Workshop, Nets4Cars/Nets4Trains/Nets4Aircraft 2015, Sousse, Tunisia, May 6-8, 2015. Proceedings

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Additional resources for Communication Technologies for Vehicles: 8th International Workshop, Nets4Cars/Nets4Trains/Nets4Aircraft 2015, Sousse, Tunisia, May 6-8, 2015. Proceedings

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Section 2 reviews the ETX metric and presents an analysis on its behaviour when specific events occur. Section 3 presents the algorithm of the F-ETX and a performance analysis. In section 4 the enhanced metric is tested under realistic physical layers in the ns-3 simulator. Section 5 concludes on the paper and open future works. 2 ETX Metric The hop count metric is the historical technique used by routing protocols to select the best path to route end-to-end traffic. It has the benefit to be simple and requires low computation.

Therefore the detection of bidirectional links becoming unidirectional depends on the window size maintained for dr . We have simulated a bidirectional link becoming unidirectional and traced the behaviour of dr with different window sizes in figure 2. Discussion. It is observed that the window size has an impact on the convergence time and the granularity of ETX values. With a small window size, the ETX reaches its maximum and minimum quickly because the windows are filled up faster. However, the convergence with larger windows is significantly slower.

In this paper, we evaluate the performance of Cartography Enhanced OLSR with obstacle awareness protocol (CE-OLSR-OA) as well as Position based OLSR (P-OLSR) and OLSR with movement prediction (OLSR-MOPR) routing protocols in the context of an urban VANET with obstructing obstacles. In these three OLSR-based routing protocols, the awareness about nodes locations is differently utilized in order to sustain the stability of selected routes. Conducted simulations show the superiority of CE-OLSR compared to OLSR-MOPR and P-OLSR in terms of routes validity, throughput and end-to-end delay metrics.

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