Implementation of Symmetrical Compensation based DWDM RoF system Toward Tbps of data transmission for 5G Fiber Optic Networks

Abstract

There are various benefits to using a Dense Wavelength Division Multiplexing Radio over Fiber (DWDM-RoF) technology in 5G communication networks, including increased capacity and data rate, as well as a reduction in the cost of operation. This is why many researchers start developing systems and approaches to achieve the best income. In this paper, it has been designed a 32-channel DWDM RoF system to handle efficient 1.28 Tbps data rate transmission by using a hybrid approach of compensation techniques. Three cases of frequency spacing (100,150,200) GHz were included in the system performance investigation. Additionally, different modulation formats are studied to handle the most reliable method to be utilized in the future. Results are obtained concerning Quality Factor (QF) and Bit Error Rate (BER) parameters are analyzed, and compared with the previous system. Such results indicate a significant impact of using the symmetrical hybrid compensation in boosting the parameters result for the proposed system. Where when using The Non-Return to Zero (NRZ) the achieved averaged QF parameter values were (20.89, 15.60, 12.69, 10.46) dBm for the distances of (60, 120, 180, and 240) km respectively. Meanwhile, the BER values were (2.43*10-80, 2.85*10-29, 1.09 *10-18, 7.61*10-11) for the same subset of studied distances respectively. Meanwhile, when handling the proposed system with the RZ modulation method the values are further improved.