Integrated Coherent Radio-over-Fiber Units for Millimeter-Wave Wireless Access

For providing wireless access as a complementary access technology to direct optical access, supporting 1–10 Gb/s per client, we propose a novel scheme based upon the transparent integration of coherent Radio-over-Fiber (CRoF) units with next generation optical access (NGOA) networks using dense WDM and a centralized electronic signal processing in the optical line termination to mitigate distortions and to achieve low costs.