Experimental Analysis of 8-QAM Constellations for Adaptive Optical OFDM Systems
In this letter, we numerically and experimentally evaluate the influence of adopting different 8-QAM constellations. The performance of flexible/adaptive direct detection optical orthogonal frequency division multiplexing transmission systems has been evaluated in the back-to-back configuration. Met...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | España |
| Recursos: | 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:p1749 |
| Acesso em linha: | https://cttc.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1749 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962476302&doi=10.1109%2fLPT.2015.2499088&partnerID=40&md5=baf8f4b12f2d389c8e1a83df7b1af185 |
| Access Level: | acceso abierto |
| Palavra-chave: | Adaptive optics Chromatic dispersion Frequency division multiplexing Modulation Optical fiber communication Direct detection Experimental analysis Loading algorithms Modulation formats Network scenario Optical orthogonal frequency division multiplexing Single side bands Transmission systems Orthogonal frequency division multiplexing |
| Resumo: | In this letter, we numerically and experimentally evaluate the influence of adopting different 8-QAM constellations. The performance of flexible/adaptive direct detection optical orthogonal frequency division multiplexing transmission systems has been evaluated in the back-to-back configuration. Metro/regional network scenario is also considered using the four-node photonic mesh network of the ADRENALINE testbed. In general, different optical paths of the network ranging from 50 to 185 km are analyzed to asses the optimal 8-QAM format, which maximizes the system performance. In addition, single side band modulation is implemented in order to enhance the robustness against the chromatic dispersion (CD). The effect of CD on the format selection is investigated targeting different data rates using the implemented loading algorithm. © 1989-2012 IEEE. |
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