Millimeter Wave Hybrid Photonic Wireless Links - Also for Broadcast?

Abstract

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High-Capacity 5G Fronthaul Networks Based on Optical Space Division Multiplexing

“…The contrast in path loss between the traditional sub-6 GHz mobile bands and the mm-wave band around n258 is shown in Fig. 5, which also shows the achievable capacity within limited bandwidths and for different antenna gains [22], [37]. Using high gain antennas which can almost entirely offset the increased path loss at mm-wave, such links have been demonstrated with capacities well beyond 100 Gbit/s over a few metres or with multiple Gbit/s over a few km [38]- [41].…”

“…Optical beamforming is used to concentrate the transmitted energy to a small area to improve SNR and to allow frequency reuse for ultra-high bandwidth point-to-point links for media production. Both analog and digitized radio-over-fiber (RoF) fronthaul are discussed, highlighting the increased flexibility gained from SDM and expanding on previous experimental results [14], [21], [22].…”