Peer-to-Peer architectures for converged wired/wireless access networks

This paper presents two architectures for Radio-Over-Fibre (RoF) Access networks with Peer-to-Peer (P2P) capabilities. The architectures fully exploit the flexibility of a wavelength router based on the feedback configuration of an Arrayed Waveguide Grating (AWG) and an optical switch to enable P2P sessions and dynamic channel allocation of converged wired and wireless signals in an unified optical platform. The first architecture incorporates a tunable laser to generate a dedicated wavelength for P2P purposes while the second architecture takes advantage of reused wavelengths to enable the P2P connectivity among Optical Network Units (ONUs). Experimental assessment shows approximately 0.6% Error Vector Magnitude (EVM) degradation for wireless services and 1 dB penalty in average for 1×10^-12 Bit Error Rate (BER) for wired services.