Investigation of Performance Enhancement of WDM Optical Interfaces for Millimeter-Wave Fiber-Radio Networks
A modified wavelength-division-multiplexed optical interface with the capability to enable optical-add - drop-multiplexing functionality as well as to deliver an uplink optical carrier to the base stations in a millimeter-wave fiber-radio system is investigated and an optimal configuration demonstrated. The incorporation of the modification significantly enhances the performance of both uplink and downlink transmission. Millimeter Wave (mm-wave) fiber-radio systems are promising technologies for the transport of future Broadband Wireless Access (BWA) services. In these networks, multiple remote antenna Base Stations (BSs), suitable for providing untethered connectivity for BWA applications, can be directly serviced by a Central Office (CO) via an optical fiber feeder network.