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Transmission impairment compensation using broadband channel sounding in multi-format OFDM-based long-reach PONs

Morant, M. ; Alves , T. M. F. ; Cartaxo, A. ; Llorente, R.

Transmission impairment compensation using broadband channel sounding in multi-format OFDM-based long-reach PONs, Proc OSA Optical Fiber Communications - OFC, Los Angeles, United States, Vol. 1, pp. 1 - 3, March, 2012.

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Abstract
A centralized impairment compensation technique using outband RF-pilots in OFDMbased
long-reach PONs supporting quadruple-play services is proposed. With this technique, a
6.7dB EVM improvement is achieved, and all signals are EVM-compliant after 100km of SSMF.