By Uwe Kucharzyk (auth.), Thomas Strang, Andreas Festag, Alexey Vinel, Rashid Mehmood, Cristina Rico Garcia, Matthias Röckl (eds.)
This e-book constitutes the joint refereed complaints of the 3rd foreign Workshop on conversation applied sciences for automobiles, Nets4Cars 2011and the 1st foreign Workshop on verbal exchange applied sciences for automobiles within the Railway Transportation, Nets4Trains 2011, held in Oberpfaffenhofen, Germany, in March 2011. The 7 complete papers of the rail tune and 12 complete papers of the line tune awarded including a keynote have been conscientiously reviewed and chosen from thirteen and 21 submissions respectively. they supply an outline over the most recent applied sciences and learn within the box of intra- and inter-vehicle conversation and current unique study leads to components when it comes to conversation protocols and criteria, mobility and site visitors types, experimental and box operational trying out, and function research.
Read or Download Communication Technologies for Vehicles: Third International Workshop, Nets4Cars/Nets4Trains 2011, Oberpfaffenhofen, Germany, March 23-24, 2011. Proceedings PDF
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Extra resources for Communication Technologies for Vehicles: Third International Workshop, Nets4Cars/Nets4Trains 2011, Oberpfaffenhofen, Germany, March 23-24, 2011. Proceedings
We also perform a joint estimation of the shadowing and construct the shadowing atlas. The atlas estimation can be processed either on-line or oﬀ-line where the measurements made during the train travel are saved and processed by a server at the railway station. The initial distribution of the atlas can be downloaded at the railway station. An operation similar to the ﬁngerprinting can be also performed by making RSS measurements at known positions and updating the atlas accordingly. References 1.
150 DR Nb antennas = 1 Nb antennas = 4, d antennas = 10m Nb antennas = 4, d antennas = 20m Nb antennas = 8, d antennas = 10m RMSE (meters) 100 75 50 25 0 0 10 20 30 time (seconds) 40 50 60 Fig. 5. 5 0 500 1000 1500 2000 2500 rail coordinate (meters) 3000 3500 Fig. 6. RMSE of the Shadowing map estimation of BS#1 RSS Train Tracking and Shadowing Estimation 33 In Fig. 6, the RMSE of the shadowing map of BS#1 is plotted after one passing of the train. Later on, the obtained atlas distribution can be used as an initial distribution for other trains passing through the same railway.
The measurements cover urban, suburban and rural environments along a multifaceted regional railway network in the south of Bavaria. Beside different operational conditions like front, rear, and flank approaches of trains, we investigated several topological scenarios on both, single and double track sections along the line. We will also discuss the observed characteristic changes in narrow band signal attenuation and Doppler spectra for passages through forests, hilly areas, stations and a tunnel.
Communication Technologies for Vehicles: Third International Workshop, Nets4Cars/Nets4Trains 2011, Oberpfaffenhofen, Germany, March 23-24, 2011. Proceedings by Uwe Kucharzyk (auth.), Thomas Strang, Andreas Festag, Alexey Vinel, Rashid Mehmood, Cristina Rico Garcia, Matthias Röckl (eds.)