NDLI: Accelerating vehicle network simulations in urban scenarios through caching

Content Provider	IEEE Xplore Digital Library
Author	Tornell, S.M. Calafate, C.T. Cano, J.-C. Manzoni, P.
Copyright Year	2014
Description	Author affiliation: Univ. Politec. de Valencia, Valencia, Spain (Tornell, S.M.; Calafate, C.T.; Cano, J.-C.; Manzoni, P.)
Abstract	When designing new Vehicular Network (VN) protocols, the cost and time required for deploying real prototypes to run tests and evaluate new proposals becomes excessive. Consequently, simulation plays a key role in Vehicular Networks development. Simulation models and tools have been improved to better mimic the different factors that affect communications in real world scenarios. In terms of the communications channel, models have evolved from simplistic distance-based models to elaborated stochastic models that take into account both distance and the obstacle layout. However, increasing the complexity of the models also increases the time needed to run simulations. In this paper, we present an optimization applicable to the obstacle model included in VEINS, a well-known VN simulator, which relays on a cache table to accelerate ray-tracing calculations at the physical layer. Our results show that the proposed optimization can reduce by up to 75% the simulation time with minimal differences in terms of simulation results.
Starting Page	654
Ending Page	661
File Size	1562848
Page Count	8
File Format	PDF
ISBN	9781479957453
DOI	10.1109/SPECTS.2014.6880007
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	simulation models propagation Veins Computational modeling VANET vehicular networks Attenuation Proposals Optimization Shadow mapping Vehicles shadowing
Content Type	Text
Resource Type	Article

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