Experimental Investigation and Comparison of Modulation Types for High Capacity Broadband Transmission System to Support 5G Networks

In this paper, the types of modulation that support high-capacity transmission in 5G networks and beyond are discussed. Different types of digital modulation (DP-PSK, DP-QAM) and their impact on the quality of received bits are discussed. Appropriate methods are suggested for transmitting the signal for distances up to 200 km and with an acceptable bit error rate (BER) with acceptable values of signal-to-noise ratio (SNR) with totally transmission bit rate approximately 6.4Tb/s. So, we describe the architecture of coherent wavelength division multiplexing (WDM) passive optical networks (PONs) that can back up 5G and future services.