On the filter narrowing issues in elastic optical networks
This paper describes the problematic filter narrowing effect in the context of next-generation elastic optical networks. First, three possible scenarios are introduced: the transition from an actual fixed-grid to a flexigrid network, the generic full flexi-grid network, and a proposal for a filterle...
| Autores: | , , , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) |
| Repositorio: | r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) |
| OAI Identifier: | oai:cttc.fundanetsuite.com:p1826 |
| Acceso en línea: | https://cttc.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1826 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979017677&doi=10.1364%2fJOCN.8.000A23&partnerID=40&md5=f4f55a69800b4dfad41cd0eb4e7d02b4 |
| Access Level: | acceso abierto |
| Palabra clave: | Bandpass filters Fiber optic networks Frequency division multiplexing Modulation Multiplexing Networks (circuits) Optical communication Orthogonal frequency division multiplexing Wavelength division multiplexing Direct detection Dual-polarizations Elastic optical networks Filtering effects Flexi-grid Single side bands Symbol rates Transmission techniques Next generation networks |
| Sumario: | This paper describes the problematic filter narrowing effect in the context of next-generation elastic optical networks. First, three possible scenarios are introduced: the transition from an actual fixed-grid to a flexigrid network, the generic full flexi-grid network, and a proposal for a filterless optical network. Next, we investigate different transmission techniques and evaluate the penalty introduced by the filtering effect when considering Nyquist wavelength division multiplexing, single side-band direct-detection orthogonal frequency division multiplexing, and symbol-rate variable dual polarization quadrature amplitude modulation. Also, different approaches to compensate for the filter narrowing effect are discussed. Results show that the specific needs per each scenario can be fulfilled by the aforementioned technologies and techniques or a combination of them, when balancing performance, network reach, and cost. © 2016 Optical Society of America. |
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