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Improving quality of service in four-channel WDM ethernet passive optical network

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Abstract

Energy-efficiency and green communications have become dominant topics related to access network implementation, since their energy consumption is a major contributor of energy consumption within the Internet. In this paper we analyze an implementation of a new energy-efficient dynamic bandwidth algorithm in a four-channel Wavelength Division Multiplexing Ethernet Passive Optical Network (WDM EPON), in which wavelength assignments take place per service class and not per Optical Network Unit (ONU). The improved Dynamic Bandwidth Allocation (DBA) algorithm introduces independent bandwidth allocation for each wavelength, which results in efficient bandwidth management and utilization. The mathematical model for new DBA algorithm is described, as are changes to the Multi-Point Control Protocol (MPCP), necessary for its implementation. The obtained results show that the redefined DBA algorithm improves Key Performance Indicators (KPIs) and as a consequently enables delivery of enhanced services to end-users. Significant energy savings are achieved without Quality of Service (QoS) degradation, and without network or equipment architecture changes.

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Authors and Affiliations

  1. School of Electrical Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, Belgrade, Serbia

    Bojan Pajc̆in & Petar Matavulj

  2. IRITEL A.D. Beograd, Batajnic̆ki drum 23, Belgrade, Serbia

    Bojan Pajc̆in

  3. School of Computing Science, University Union, Kneza Mihaila 6, Belgrade, Serbia

    Mirjana Radivojević

Authors
  1. Bojan Pajc̆in
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  2. Petar Matavulj
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  3. Mirjana Radivojević
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Corresponding author

Correspondence to Bojan Pajc̆in.

Additional information

This work was supported by the Serbian Ministry of Education, Science and Technological Development under contracts Nos. TR32007 and 171011.

This article is part of the Topical Collection on Focus on Optics and Bio-photonics, Photonica 2017.

Guest Edited by Jelena Radovanovic, Aleksandar Krmpot, Marina Lekic, Trevor Benson, Mauro Pereira, Marian Marciniak.

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Pajc̆in, B., Matavulj, P. & Radivojević, M. Improving quality of service in four-channel WDM ethernet passive optical network. Opt Quant Electron 50, 371 (2018). https://doi.org/10.1007/s11082-018-1637-3

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