The era of sustainable development has brought Electric Vehicles (EVs) to the spotlight. Since recharging an electric vehicle can take up to ten or more times the power consumption of a household, an increasing EV penetration in the market poses a challenge for the electricity companies. Using the Internet of Things (IoT) approach, we propose a model where electric vehicles communicate with the electrical grid infrastructure in order to determine the charging station where they should go to. We have consequently built a simulator, mixing both a microscopic traffic simulation and a complete network simulation including radio propagation analysis. In this work we run several simulations over a test map, taking service and network-level metrics, comparing four basic charging station assignment strategies. Our final analysis draws relevant conclusions concerning the fundamental aspects to take into account for developing a distributed system that optimizes the charging station assignation based on real-time network analysis and taking into account the grid's capacity.