Hybrid RFVLC Network Architecture for the Internet of Things In recent years, there has been a remarkable advance in monitoring technologies in many environments, be they urban or rural. These technologies, included in the Internet of Things (IoT) domain, allow remote control and acquisition of data from sensors for their subsequence analysis. All these systems are based on the interaction between sensors and actuators. To achieve this goal, it is necessary to provide a very high level of connectivity between the devices, especially as far as wireless systems are concerned. In this sense, there is a great variety of standards in the market of communication networks oriented to this end. One of the biggest challenges today is to allow interoperability between these different technologies in order to homogenize this field. In addition to this, it is intended to introduce new communication techniques that can provide certain additional advantages to those already existing. The main idea is the creation of a cellular network where radiofrequency and optical technologies coexist, and whose link with the rest of the world is through longrange and lowconsumption wireless technologies. The center of each cell, that is the lighting system, can be powered using solar panels, as can the existing systems in the market. The objective is that these panels are capable of providing the necessary energy to the rest of the necessary systems.

Toward a hybrid vehicle communication platform based on VLC and DSRC technologies Wireless communications technologies have the potential to significantly improve the safety and the efficiency of the transportation system. Nevertheless, supporting the requirements imposed by the usage in vehicle safety applications is rather challenging. In such a context, this paper provides an overview of some of the most promising technologies that could be used in communicationbased vehicle safety applications. The paper provides an overview of the DSRC technology as a favorite technology for such applications and of the VLC technology as a very promising emergent alternative. Based on this analysis, a hybrid architecture using DSRC and VLC is proposed. This architecture envisions that neighboring vehicles are interconnected based on VLC, whereas nonline of sight vehicles are connected through the DSRC network. Thus, an application for the connection of these network solutions is proposed and evaluated.