A WDM RoF system for heterogeneous 5 GHz/60 GHz wireless applications in MTMAC-enabled networks

We present a heterogeneous passive WDM RoF system that is capable of simultaneously delivering broadband wireless 500 Mb/s services at 5 GHz RF carriers and 2.5 Gb/s LAN traffic at 60 GHz RF carriers over a standard single mode fiber. Our system employs phase modulation formats and optical frequency multiplication in order to increase the transmission distance and reduce the chromatic dispersion, allowing also for the use of cost-effective low-frequency RF components at the CO premises. Detailed performance evaluation results are derived by means of simulations that confirm the successful transmission of both RF carriers with less than 2 dB power penalty over a long distance optical path. The proposed system is fully compatible with the requirements of Medium-Transparent MAC protocols proposed for seamlessly and dynamically allocating resources in 60 GHz RoF LANs.

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