Young-Jun Won

TL;DR: The successful demonstration of an intermediate-frequency-over-fiber (IFoF)–based radio access network (RAN) for 28 GHz millimeter-wave (mmWave)- based 5G mobile communication confirmed that the IFoF technology was capable of supporting RANs for mmWave-based 5G networks and providing real-time multi-Gb mobile services.

TL;DR: 4 × 4 multiple-input and multiple-output (MIMO) supporting mmWave-based indoor 5G mobile network based on a distributed antenna system (DAS) that has over-the-air interface to receive the broadband wireless signal from, e.g., remote radio head (RRH) of mobile fronthaul.

TL;DR: The 5G connected car service, which is one of the 5G key services, is successfully demonstrated through deployed IFoF-based DAS through a seamless handover at the intersection of baseband unit and DAS deployed sections to smoothly support 5G-based autonomous driving service.

TL;DR: 5G connected car, one of the 5G key services, is successfully demonstrated through IFoF-based DAS in Pyeongchang area during PyeONGchang Winter Olympics.

TL;DR: An over-the-air 4×4 MIMO distributed antenna system with a radio-over-fiber that provides 147.4-Gb/s eCPRI-equivalent-rate achieving ∼4 Gb/s data throughput per cell in conjunction with Korea Telecom 5G mobile network employing mmWave is demonstrated.