Antennas and propagation for millimeter wave radio systems for 5G mobile networks - the Tokyo Tech wireless fiber project

The future mobile network called "5G" is becoming a hot topic. The heterogeneous networks using multi-band "HetNet" is one of the promising candidates which provide more than 1000 times system capacity. Millimeter-wave is expected to be utilized for the pico cell coverage as well as the fronthaul to connect these enhanced RRHs. This paper reviews the antennas and propagation research works developed in "Tokyo Tech wireless fiber project", where many of the project outputs are directly applicable for realization of multi-band HetNet utilizing millimeter wave. The 60GHz compact range communication is focused upon.