Vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I as well as I2V)applications are developing very fast. They rely on telecommunication and localizationtechnologies to detect, identify and geo-localize the sources of information (such as vehicles,roadside objects, or pedestrians). This paper presents an original approach on how twodifferent technologies (a near infrared identification sensor and a Zigbee smartdust sensor)can work together in order to create an improved system. After an introduction of these twosensors, two concrete applications will be presented: a road sign detection application and acooperative traffic light application. These applications show how the coupling of the twosensors enables robust detection and how they complement each other to add dynamicinformation to road-side objects
