Abstract—In Radio Over Fiber (RoF) systems, a commonly used approach to reduce the Dispersion Power Fading (DPF) effects is to convert the spectrum of modulated optical signals into Optical Single Sideband (OSSB). This process can be done by modulating the optical carrier using two RF signals that differ in phase by 90. The optical modulator used is the Dual-Drive Mach Zehnder Modulator (DD-MZM). However, implementing this modulation scheme requires a complex transmitter setup. In this study, a novel technique is proposed to address DPF, called as Unbalanced Sideband Modulation (USM). USM is generated by varying the optical signal carrier according to the RF signal using a Single-Drive Mach Zehnder Modulator (SD-MZM). The output of the SD-MZM is subsequently combined with an optical signal of a frequency equivalent to the sum of the optical carrier frequency and the Radio Frequency (RF) signal frequency. The result outcomes indicate that at a modulation index (m) of 1, the DPF level in an RoF link employing conventional SDMZM as an Electro-Optic (E/O) converter is approximately 8.2. In contrast, when using the OSSB produced by the DDMZM, the DPF level of a RoF link is around 0.9. Remarkably, the DPF level significantly drops to 0.2 when the USM scheme is adopted. This result shows the high efficacy of the USM scheme in eliminating DPF compared to both the conventional SD-MZM modulation scheme and the OSSB scheme generated by DD-MZM. Both model calculations and numerical simulations conclusively demonstrate that the USM method effectively mitigates DPF, offering a promising solution in optical communication systems.