WakeUp Radio Systems for CooperativeIntelligent Transport Systems Architecture CooperativeIntelligent Transport systems are new applications developed on top of communications between vehicles and between vehicles and fixed infrastructure. Their architecture envisages devices deployed along the routes and streets, transmitting and receiving different kind of messages belonging to different services. Quite often, these devices will be located in isolated places with very low number of vehicles passing nearby. Being in isolated places, these devices will require to be feed with rechargeable batteries and alternative power sources, the usage of which need to be very efficient. The fact of continuously transmitting messages whenever there is no vehicle to receive them demands a solution. In this paper, we propose to use a wellknown saving power strategy already used in Internet of Things, the Wakeup Radio systems. As vehicular communications are based on IEEE 802.11 standard, we propose to use a Wakeup Radio system based on this standard as well, being thus no additional hardware needed for the wakeup transmitter. The paper analyses the feasibility of using this solution on several vehicular applications.

Use of Smartphones for Ensuring Vulnerable Road User Safety through Path Prediction and Early Warning: An InDepth Review of Capabilities, Limitations and Their Applications in Cooperative Intelligent Transport Systems The field of cooperative intelligent transport systems and more specifically pedestrians to vehicles could be characterized as quite challenging, since there is a broad research area to be studied, with direct positive results to society. Pedestrians to vehicles is a type of cooperative intelligent transport system, within the group of early warning collisionsafety system. In this article, we examine the research and applications carried out so far within the field of pedestrians to vehicles cooperative transport systems by leveraging the information coming from vulnerable road usersxe2x80x99 smartphones. Moreover, an extensive literature review has been carried out in the fields of vulnerable road users outdoor localisation via smartphones and vulnerable road users next stepmovement prediction, which are closely related to pedestrian to vehicle applications and research. We identify gaps that exist in these fields that could be improvedextendedenhanced or newly developed, while we address future research objectives and methodologies that could support the improvementdevelopment of those identified gaps.