Recent experimental works have demonstrated the feasibility of the visible light based vehicular communications (VVLC) in intelligent transportation systems (ITS). However, in many respects, this technology is in its infancy and requires further research efforts in several areas. This work presents a flexible network architecture named flexible light (Flight), which is designed for VLC to tackle existing mobility challenges in the network environment. Flight proposes a low-latency handover system that decreases the handover delays to a few tens and hundreds of milliseconds. By means of experiments, we emulate and evaluate indoor mobile network scenarios using only VLC technology.

Previous researches on optical wireless communication (OWC) focused mainly on increasing the data rate for mobile broadband delivery. However, for new applications such as industrial wireless, reliability and robustness against interference play a crucial role. This paper focuses on the design, characterization, and real-world testing of novel solutions for OWC taking industrial requirements into account. Recent experimental works have demonstrated the feasibility of reliable OWC in a manufacturing environment. Here we propose to implement networked OWC which is also known as Li-Fi by means of a distributed MIMO approach enabling ultra-reliable low-latency communication (URLLC) which is an important use case for 5G and beyond mobile networks. For distributing the MIMO signals, plastic optic fiber (POF) is a promising low-cost solution offering high data rates, easy deployment and inherent robustness against electromagnetic interference. As POF may become a main component for Li-Fi using distributed MIMO, commercially available POF solutions are studied and their usability for this new application to distribute signal between central unit and multiple frontends is discussed.

Recent research works have focused on feasibility of using the multipath-transmission control protocol (MPTCP) in order to optimize the network throughput and latency. In this work, we propose a novel architecture using MPTCP for a vehicular visible light communications (VLC) network to improve the performance in terms of network outage duration and throughout. Two relevant MPTCP schedulers and an MPTCP tool is selected to analyze VLC performance during the handover. The results show that the proposed system offers lowoutage duration handover of 24 ms and a high data throughput of 125 Mbps using "Redundant" and "Default" schedulers, respectively.

A new MnZn ferrite tape material for sintering at 900°C and its performance in power electronic embedded multilayer inductors of several μH inductance are described. The low sintering temperature is achieved by optimizing powder processing and sintering additives. The material is suited for processing within the low temperature cofired ceramics (LTCC) technology and it is particularly compatible with low loss Ag metallization. Although reduced by a factor of two compared to high-temperature sintered material, its relative amplitude permeability of 700 allows for numerous device applications below the Curie temperature of 260°C. Volumetric losses are not affected by the new material formulation since increased hysteresis losses are compensated by reduced eddy current losses. Power line filters with ceramic integrated inductors and surface mounted capacitors exhibit a current capacity of up to 10 A and a shift in cutoff frequency compatible with the measured B-H curve of the material. By integration of these inductors with conventional dielectric LTCC tapes a strain-induced permeability quenching is revealed and attributed to magnetostriction. Therefore good thermal matching between tape materials is needed, but the effect also permits construction of variometers and pressure sensors without moving mechanical parts.

We highlight new applications for optical wireless communication (OWC) as a mobile backhaul for WiFi, LTE and 5G and as a new access technology in the Internet of Things (IoT) where it enables secure and reliable communications at low latency