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Performance Investigation of 5G-Mobile Fronthaul using Analog RoF Technology

This paper presents the transmission performance of 5G mobile fronthaul based on the aggregation of multiple intermediate frequencies over a radio-over-fiber platform. Four scenarios describing the environment of single mode-fiber link are investigated for efficient bandwidth transmission. The effect of fiber transmission link parameters like dispersion, attenuation, transmission distance, lunch power, and number of aggregated signals are reported for three modulation formats (QPSK, 16QAM, and 64QAM). Increasing the transmission capacity by going toward wavelength division multiplexing with 1 GHz-channel bandwidth is discussed. The simulation reveals that the maximum transmission distance of 16x200 MHz-bandwidth mobile signals over SMF operating at 1550 nm is 82, 69, and 25 km with bit rates 10.24, 20.48 and 30.72 GB/s for QPSK, 16QAM and 64QAM, respectively, at launch power equal to 0 dBm. These values are to be compared with 29, 20 and 13 km (9.6, 51.2 and 76.8 Gb/s), respectively, when 8x1 GHz-bandwidth signals are transmitted.