Performance Evaluation of Gigabit Passive Optical Network (GPON) for Fiber to the Home Applications Using OptiSystem Software: A Case Study in Tripoli, Libya
DOI:
https://doi.org/10.65568/gujes.2026.020204Keywords:
Fiber to the Home (FTTH), Gigabit Passive Optical Network (GPON), Optical Line Terminal (OLT), Optical Network Terminal (ONT), SplitterAbstract
Gigabit Passive Optical Network (GPON), a cost-effective solution for triple-play services, is favored for its flexibility in accommodating future technologies. GPON networks theoretically can support up to 64 users within a 20 km reach, operating at 2.488 Gbps downstream and 1.244 Gbps upstream [1], [2]. Utilizing OptiSystem software, this paper focuses on a comprehensive performance evaluation of a GPON Fiber to the Home (FTTH) network in Tripoli, Libya. Through practical implementation in the national FTTH project by Hatif Libya Telecom, it was determined that service delivery via the Optical Line Terminal (OLT) to areas approximately 20 km away from the Central Office (CO) was not viable. Based on this principle, we conducted a performance analysis of a GPON network over feeder cable lengths ranging from 5 km to 30 km, evaluating key parameters such as received power, Bit Error Rate (BER), and Q-factor. The results indicate that as the distance increases and the number of users serviced on a single fiber strand approaches 32, both the error rate and the likelihood of transmission failures rise significantly. The simulation results provided critical insights into the performance evaluation of GPON for Fiber to the Home (FTTH) networks using OptiSystem software. Notably, the Bit Error Rate (BER) analysis demonstrated a direct correlation between increasing feeder cable lengths within the 5-30 km range and rising BER values. Additionally, the Q-factor analysis highlighted the network's performance, indicating that lower Q-factor values corresponded with higher BER levels and potential transmission challenges
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