Performance evaluation of multi-ONU customers in ethernet passive optical networks

• Published in: Photonic network communications Vol. 43; no. 1; pp. 34 - 45
• Main Authors: Ciceri, Oscar J., Astudillo, Carlos A., da Fonseca, Nelson L. S.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.02.2022; Springer Nature B.V
• Subjects: Algorithms; Bandwidths; Characterization and Evaluation of Materials; Computer Communication Networks; Computer Science; Customer services; Customers; Cycle time; Electrical Engineering; Ethernet; Networks; Optical communication; Original Paper; Performance evaluation; Multi-operator; Passive optical networks; Dynamic bandwidth allocation; Multi-tenant; Quality of service; Multi-customers
• ISSN: 1387-974X; 1572-8188
• DOI: 10.1007/s11107-022-00969-9

Resources of Passive Optical Networks (PONs) can be shared by a diverse spectrum of customers such as residential users, business subscribers, mobile network operators, and service providers. A PON customer can rent one or several Optical Network Units (ONUs) from an Infrastructure Service Provider. The ONUs of a customer (multi-ONU customer) can be subject to large spatiotemporal traffic variability, resulting in underutilization of particular ONUs and overutilization of others. The Interleaved Polling with Adaptive Cycle Time with Multi-ONU SLAs support ( MOS-IPACT ) algorithm has been recently proposed to promote the redistribution of unused bandwidth of underloaded ONUs of a multi-ONU customer. This paper introduces an analytical model to evaluate the duration of idle periods in bandwidth usage, as well as a performance evaluation of the MOS-IPACT algorithm in networks with traditional and multi-ONU customers. Numerical results show that the MOS-IPACT algorithm efficiently distributes the excess bandwidth among the ONUs of multi-ONU customers without compromising the bandwidth availability.