Abstract
Radio over fiber (RoF) has found to be one of the most effective communication techniques. It has the tendency to incorporate both optical fiber and free space radio paths. In this research article, importance, benefits, and applications of RoF system are discussed in detail for futuristic networks. The performance of RoF system is visualized by modulating the data with the RF signal having same frequency at both transmitter and receiver ends. Initially, the performance is checked using non-return to zero (NRZ) format and later compared with duobinary (DB) and carrier suppressed return to zero (CSRZ). Various simulations are performed which directly affect the system performance. Important parameters such as RoF link distance, data rate, transmitter power, amplifier gain, and RF signal frequency are tested. The operation is carried out at 1550 nm wavelength and 30 GHz RF frequency. System is optimized to receive the transmitted waveforms successfully. Simulations are performed in Optisystem 17.0 and MATLAB. For the analysis, the results are plotted using Q-factor and BER values.
Highlights
Over the past few decades, there has been tremendous increase in the number of subscribers and demand for highspeed data transmission across the world
The incoming data signal is added with RF signal during transmission while the modulated signal is subtracted from same RF signal at the receiver side
The proposed scheme is simulated for three different modulation formats i.e., non-return to zero (NRZ), carrier suppressed return to zero (CSRZ) and duobinary to compare their performances
Summary
Over the past few decades, there has been tremendous increase in the number of subscribers and demand for highspeed data transmission across the world. RoF link possess the important characteristics of both optical fiber link and free space radio [3]. This fiber based wireless access helps meeting the demands of real-time high-capacity multimedia services [4]. Optical signal generation based on RoF technology has many applications in practical life for high frequency wireless systems [5]. C. Disadvantages of RoF system RoF systems require high-speed optical components and complex radio wave generation techniques. Signal distortion and noise-like signal disturbances should be considered as important factors [2]
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