The principal objective of this work is to show that ubiquitous communication, in a vehicular communication environment, is possible by exploring the existing radio access networks. Proper channel modeling is essential to utilize current network infrastructure. An overview of basic channel propagation models and fading models are presented here. Then vehicle-to-vehicle (V2V) channels are compared with cellular channels. Performance of three existing radio access networks, viz., 3G, WLAN and WiMax , in V2V communication environment is evaluated through simulation and results are shown. MALAB 7.5 is used as simulation platform.

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Intelligent Transportation System (ITS) vehicle-to-vehicle (V2V) channels Ubiquitous communication Doppler