Self-adapted algorithm to provide multi-profile bandwidth guarantees in PONs with symmetric and asymmetric traffic load

Authors:
Tamara Jiménez;Noemí Merayo;Patricia Fernández;Ramón J. Durán;Ignacio Miguel;Rubén M. Lorenzo;Evaristo J. Abril
Affiliations:
Optical Communications Group, Department of Signal Theory, Communications and Telematic Engineering E.T.S.I. Telecomunicación, University of Valladolid, Valladolid, Spain 47011;Optical Communications Group, Department of Signal Theory, Communications and Telematic Engineering E.T.S.I. Telecomunicación, University of Valladolid, Valladolid, Spain 47011;Optical Communications Group, Department of Signal Theory, Communications and Telematic Engineering E.T.S.I. Telecomunicación, University of Valladolid, Valladolid, Spain 47011;Optical Communications Group, Department of Signal Theory, Communications and Telematic Engineering E.T.S.I. Telecomunicación, University of Valladolid, Valladolid, Spain 47011;Optical Communications Group, Department of Signal Theory, Communications and Telematic Engineering E.T.S.I. Telecomunicación, University of Valladolid, Valladolid, Spain 47011;Optical Communications Group, Department of Signal Theory, Communications and Telematic Engineering E.T.S.I. Telecomunicación, University of Valladolid, Valladolid, Spain 47011;Optical Communications Group, Department of Signal Theory, Communications and Telematic Engineering E.T.S.I. Telecomunicación, University of Valladolid, Valladolid, Spain 47011
Venue:
Photonic Network Communications
Year:
2012

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Abstract

A novel bandwidth assignment algorithm in Ethernet Passive Optical Networks with different coverage, called DySGAB, is proposed to provide subscriber differentiation. In contrast to algorithms which allocate bandwidth based on fixed weighted factors, DySGAB continuously adapts the bandwidth assignation to fulfill the requirements of all profiles, leading to an outstanding performance. This auto-adjustment, which has not been implemented in any of today's algorithms, allows the network to evolve automatically to the stipulated values even if they change in real time. As a result, not only does DySGAB ensure the guaranteed bandwidth for every subscriber, but also is independent of the initial bandwidth restrictions, which is an advantageous characteristic for service providers.