FHT-based architectures for multicarrier modulation in direct detection and coherent optical systems

Author

Moreolo, Michela Svaluto ; Fàbrega, Josep M. ; Nadal, Laia ; Junyent, Gabriel

Author_Institution

Centre Tecnol. de Telecomunicacions de Catalunya (CTTC), Castelldefels, Spain

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

In this paper, flexible architectures based on the fast Hartley transform (FHT) for multicarrier modulation are presented. The analysis of performance using large size constellations shows that the proposed architectures furnish an alternative OFDM scheme for adaptive high-speed optical systems. Moreover, it is demonstrated that FHT modulation is suitable for cost-effective unamplified and ASE-dominated optical OFDM systems. Low-complexity PAPR reduction techniques can be easily and efficiently implemented. Finally, the FHT is advantageously used in a phase modulated coherent scheme for implementing a 0 dB PAPR constant envelope O-OFDM.

Keywords

Hartley transforms; OFDM modulation; optical communication equipment; phase modulation; superradiance; PAPR constant envelope O-OFDM; adaptive high-speed optical systems; coherent optical systems; direct detection systems; fast Hartley transform based architectures; flexible architectures; low-complexity PAPR reduction; multicarrier modulation; peak-to-average power ratio; phase modulated coherent system; unapmlified ASE-dominated optical OFDM systems; High speed optical techniques; Integrated optics; OFDM; Optical fibers; Optical modulation; Optical receivers; Optical OFDM; PAPR; coherent systems; direct detection; discrete Hartley transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2011 13th International Conference on

Conference_Location

Stockholm

ISSN

2161-2056

Print_ISBN

978-1-4577-0881-7

Electronic_ISBN

2161-2056

Type

conf

DOI

10.1109/ICTON.2011.5971031

Filename

5971031