Design and Performance Analysis of WDM PON Based on Heterodyne Receiver for 5G Transport Network

Abstract

The development of fifth generation (5G) wireless networks is aimed at satisfying the growing need for fast data transmission. An optical network with high speed and reliability is needed to facilitate 5G transport. Passive optical networks (PONs) are becoming a viable option for 5G transport because of their scalability and affordability. Wavelength Division Multiplexing Passive Optical Networks (WDM-PONs) have attracted a lot of interest because of its capacity to provide a wide range of services to numerous customer. In this thesis, the performance of WDM -PON based on a heterodyne receiver for 5G transport has been evaluated. The result of simulation suggested that under different modulation the WDM PON is capable of providing 5G transport with high data rates, and good spectrum efficiency. The system selectivity and sensitivity is enhanced by heterodyne receiver by reducing the noise and distortion. The right optical components and wavelengths for data transmission are chosen as part of the system's design and performance study. Effective performance measurement like bit error rate (BER) symbol error rate (SER), error vector magnitude (EVM), quality factor and constellation diagram are used to assess the system performance. From the result analysis, it is observed that average Q-factor is 21.12 at 100 Gbps and 100km, which shows that the goodness of system performance, the average BER value is 0.000103312, at 100km and 100 Gbps, the average SER of 0.000153055 is achieved at 100km and 100Gbps, the average EVM of 5.124994 is achieved at 100Gbps and 100km fiber length and the less noisy constellation point arrangement is found at 100Gbps and 100 km fiber length. As the data rate and fiber length increase the quality factor is decrease and BER, SER, EVM % is increase. The above achieved value is evaluated under QPSK modulation which have large constellation space between the symbol and less prone to error.