Radio-over-fiber technologies for future mobile backhaul supporting cooperative base stations

We propose and investigate radio-over-fiber technologies for future mobile network incorporating base station cooperation schemes (CoMP). We experimentally demonstrate mobile backhauls for CoMP based on three previously proposed RoF technologies: traditional analog RF-over-fiber, digitized IF-over-fiber enabling OBSAI/CPRI and digitized RF-over-fiber based on bandpass sampling. Experimental results demonstrate that >2 dB gain can be achieved for cell edge users.