Performance Evaluation of Radio-Over-Fibre Systems Using Mach-Zehnder Modulator
This paper investigates the Bit Error Rate (BER) performance of a Radio-over-Fibre (RoF) system utilizing the Binary Phase Shift Keying (BPSK) and quadrature phase shift keying (QPSK) at a Radio Frequency (RF) of 5 GHz. The RF signal is externally modulated using the Mach-Zehnder Modulator (MZM). The effects of noise sources and channels for the RoF link at distances of 30, 60, 90, 120 and 200 km are investigated. The authors shown that the RoF system offers lower BER performance compared to the RF wireless communication system employing the same modulation schemes.