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Linearity improvement of directly modulated PONs by digital pre-distortion of coexisting OFDM-based signals

Alves , T. M. F. ; Morgado, J. ; Cartaxo, A.

Linearity improvement of directly modulated PONs by digital pre-distortion of coexisting OFDM-based signals, Proc OSA Access Networks and In-house Communications (OSA Topical Meeting) - ANIC, Colorado Springs, United States, Vol. AW4A.3, pp. 1 - 2, June, 2012.

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Abstract
Digital pre-distortion of five OFDM-based wired-wireless signals for compensation of
directly-modulated PONs nonlinearity is demonstrated experimentally. This technique leads to
EVM-compliant levels in all signals and to EVM improvements that reach 5.7dB in UWB signals.