Extensive Comparisons of Optical Fast-OFDM and Conventional Optical OFDM for Local and Access Networks
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
01/10/2012
|
Resumo |
A performance comparison between a recently proposed novel technique known as fast orthogonal frequency-division multiplexing (FOFDM) and conventional orthogonal frequency-division multiplexing (OFDM) is undertaken over unamplified, intensity-modulated, and direct-detected directly modulated laser-based optical signals. Key transceiver parameters, such as the maximum achievable transmission capacity and the digital-to-analog/analog-to-digital converter (DAC/ADC) effects are explored thoroughly. It is shown that, similarly to conventional OFDM, the least complex and bandwidth efficient FOFDM can support up to similar to 20 Gb/s over 500 m worst-case multimode fiber (MMF) links having 3 dB effective bandwidths of similar to 200 MHz X km. For compensation of the DAC/ADC roll-off, a power-loading (PL) algorithm is adopted, leading to an FOFDM system improvement of similar to 4 dB. FOFDM and conventional OFDM give similar optimum DAC/ADC parameters over 500 m worst-case MMF, while over 50 km single-mode fiber a maximum deviation of only similar to 1 dB in clipping ratio is observed due to the imperfect chromatic dispersion compensation caused by one-tap equalizers. |
Formato |
724-733 |
Identificador |
http://dx.doi.org/10.1364/JOCN.4.000724 Journal of Optical Communications and Networking. Washington: Optical Soc Amer, v. 4, n. 10, p. 724-733, 2012. 1943-0620 http://hdl.handle.net/11449/25132 10.1364/JOCN.4.000724 WOS:000310369200003 |
Idioma(s) |
eng |
Publicador |
Optical Soc Amer |
Relação |
Journal of Optical Communications and Networking |
Direitos |
closedAccess |
Palavras-Chave | #Modulation #Optical fiber communication #OFDM |
Tipo |
info:eu-repo/semantics/article |