Optimizing Resource Allocation in Long-Reach PONs for Improved Performance in 6G Networks

• Published in: 2023 23rd International Conference on Transparent Optical Networks (ICTON) pp. 1 - 4
• Main Authors: Haastrup, Adebanjo, Zehri, Mohamad, Rincon, David, Piney, Jose Ramon
• Format: Conference Proceeding
• Language: English
• Published: IEEE 02.07.2023
• Subjects: 6G mobile communication; Delays; dynamic bandwidth allocation; Heuristic algorithms; LRPON; Optical network units; passive optical network; Passive optical networks; Telecommunication traffic; Throughput
• ISSN: 2161-2064
• DOI: 10.1109/ICTON59386.2023.10207215

Next-generation cellular networks, such as 6G, will require high-speed and low-latency connectivity to support advanced services and applications. Passive Optical Networks (PONs) have emerged as a promising solution to meet these requirements. Long-reach PONs (LRPONs) have further extended the reach of PONs, making them ideal for remote and rural areas, as well as providing high-speed connectivity to buildings and homes. LRPONs have the potential to play a critical role in the Radio Access Network (RAN) of any mobile communication system, specifically in Centralized Radio Access Network (C-RAN) architectures. In this paper, we present a new dynamic bandwidth allocation (DBA) algorithm specifically enhanced for LRPONs. The proposed algorithm utilizes a scheduling policy that assigns weight vectors to ONUs based on their distance from the OLT, sorting them accordingly without penalizing any ONU due to their distance. We evaluate the performance of the algorithm through simulations under various traffic scenarios. Our results demonstrate that the proposed algorithm outperforms other algorithms in terms of throughput and queue delay, which ultimately reduces the end-to-end delay especially under heavy traffic loads.