Evaluación de rendimiento de las tecnologías 802.11 y LTE para proveer servicios web en redes vehiculares AD-HOC.

Abstract

The objective was to evaluate a vehicular network performance with IEEE 802.11p and LTE technologies to identify the most appropriate technology to provide network web services access to Chimborazo Polytechnic Superior School bus transportation system. The research was experimental and based on scientific methodology. Firstly, vehicular traffic was simulated with SUMO software, taking into consideration the buses roads, therefore, the communication system was implemented by each technology with VEINS and VEINS LTE under OMNeT ++ network simulator. Subsequently, the communication network was evaluated in terms of performance, thus, were implemented two test scenarios; the first one to analyze the communication from infrastructure toward vehicle with IEEE 802.11p technology, while the second one was implemented with LTE technology. Both scenarios were modified the transmission frequency with 1, 4, 8 and 20 Hz to determinate the more suitable communication properties to implement infotainment application into vehicular networks, after that, the results were analyzed in Matlab. Therefore, they are compared in terms of throughput, packet delivery ratio and delay. Through Chi-square test was validity the research data in which it was demonstrated that LTE offers a superior network capacity compared between 802.11p. In this way, having done several simulations LTE technology shows less packet loss, enough throughput and low delay to provide capabilities communication in vehicular environment. LTE technology is recommended to implement different types of applications in vehicle to infrastructure communications.