On the Impact of Building Attenuation Models in VANET Simulations of Urban Scenarios

Electronics

Luis Urquiza-Aguiar³  Carolina Tripp-Barba¹  José Estrada-Jiménez²  Mónica Aguilar Igartua³ 

[1]Faculty of Informatics, Autonomic University of Sinaloa (UAS), De los Deportes Avenue and Leonismo Internacional, Mazatlán 82107, Mexico

[2] E-Mail:

[3]Department of Electronics, Telecommunications and Networks, Escuela Politécnica Nacional (EPN), Ladrón de Guevara E11 253, Quito 170413, Ecuador

[4] E-Mail:

[5]Department of Network Engineering, Universitat Politècnica de Catalunya (UPC), C. Jordi Girona 1-3, Barcelona 08034, Spain

[6] E-Mail:

关键词: vehicular ad hoc networks;    building attenuation models;    propagation models;    VANETs;   

DOI  :  10.3390/electronics4010037

来源: mdpi

【 摘 要 】

Buildings are important elements of cities for VANETs, since these obstacles may attenuate communications between vehicles. Consequently, the impact of buildings has to be considered as part of the attenuation model in VANET simulations of urban scenarios. However, the more elaborated the model, the more information needs to be processed during the simulation, which implies longer processing times. This complexity in simulations is not always worth it, because simplified channel models occasionally offer very accurate results. We compare three approaches to model the impact of buildings in the channel model of simulated VANETs in two urban scenarios. The simulation results for our evaluation scenarios of a traffic-efficiency application indicate that modeling the influence of buildings in urban areas as the total absence of communication between vehicles gives similar results to modeling such influence in a more realistic fashion and could be considered a conservative bound in the performance metrics.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland