2010/02/11 by Nelson Antunes, Christine Fricker, Antunes, Nelson +5
Engineering · #Advanced Optical Network Technologies #Advanced Photonic Communication Systems #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #Optical Network Technologies
paper · pdf · doi:10.48550/arxiv.1002.2384
openalex publication_date 2010/02/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Passive optical networks are increasingly used for access to the Internet and it is important to understand the performance of future long-reach, multi-channel variants. In this paper we discuss requirements on the dynamic bandwidth allocation (DBA) algorithm used to manage the upstream resource in a WDM EPON and propose a simple novel DBA algorithm that is considerably more efficient than classical approaches. We demonstrate that the algorithm emulates a multi-server polling system and derive capacity formulas that are valid for general traffic processes. We evaluate delay performance by simulation demonstrating the superiority of the proposed scheduler. The proposed scheduler offers considerable flexibility and is particularly efficient in long-reach access networks where propagation times are high.