Towards a reliable RoF infrastructure for broadband wireless access

Radio-over-Fiber (RoF) distribution antenna systems have been identified as a flexible option for the access architecture of the emerging wireless access networks, especially inside buildings, as a means of reducing infrastructure cost and antenna site complex-ity. Exploiting the features of the Optical Frequency Multiplication (OFM) technique, a reliable RoF physical layer can be designed, comprising bidirectional RF transmission, increased cell capacity allocation, multi-standard support, remote LO delivery and an in-band control channel for dynamic radio link adaptation and remote antenna controlling. The proposed scheme can be easily integrated in WDM-PON architectures, allowing a flexible convergence of wireless services with broadband access optical networks