RESUMEN ANALITICO El acceso inalambrico en entornos vehiculares (redes vehiculares) se presenta y estudia bajo caracteristicas comunes, tales como la arquitectura de red, configuraciones, etapas de implementacion, posibles protocolos de enrutamiento y la capa MAC, lo que permite la comprension sobre como funciona, como se implementa e identificar variaciones del estandar original. Ademas, este articulo ofrece una evaluacion del desempeno de la transmision de datos, voz y video IP, y el analisis de algunos factores a considerar cuando los servicios se proporcionan en entornos vehiculares. El objetivo del estudio es la enmienda IEEE 802.11p/WAVE. PALABRAS CLAVES: Redes Vehiculares, Wi-Fi, 802.11p PERFORMANCE EVALUATION OF 802.11P/WAVE NETWORKS IN DATA, VOICE AND VIDEO TRANSMISSION ANALYTICAL SUMMARY Wireless access in vehicular environments (vehicular networks) is presented and studied under common features, such as network architecture, configurations, implementation stages, possible routing protocols and MAC layer, which allows the understanding of how it works, how it is implemented and identify variations from the original standard. Also, this paper gives a performance assessment transmission of data, voice and IP Video, and the analysis of some factors to consider when services are provide in vehicular environments. The study focus is the amendment IEEE 802.11p/WAVE. KEY WORDS:Vehicular Networks; Wi-Fi; 802.11p