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Article Dans Une Revue IEEE Photonics Technology Letters Année : 2015

A Joint Linearization/Companding Approach for Improving a CO-OFDM Transmitter

Résumé

—The joint use of peak-to-average power ratio (PAPR) reduction and linearization via digital predistortion is investigated in this letter, with the view to improve the performances of coherent optical OFDM (CO-OFDM) systems employing a semiconductor optical amplifier (SOA). PAPR reduction is performed via Wang's nonlinear companding transform (WNCT), which has been recently pointed out as a pertinent choice for optical communications, and a Filter Lookup Table (FLUT) scheme is considered for linearizing the transmitter. Experimental results prove the effectiveness of the proposed scheme, as a lower EVM is achieved with respect to system implementations using only PAPR reduction or linearization.
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Dates et versions

hal-01218942 , version 1 (21-10-2015)

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Serban Bejan, Stéphane Azou, Pascal Morel, Cherif Diouf, Mihai Telescu, et al.. A Joint Linearization/Companding Approach for Improving a CO-OFDM Transmitter. IEEE Photonics Technology Letters, 2015, 27 (20), pp.2162-2165. ⟨10.1109/LPT.2015.2455674⟩. ⟨hal-01218942⟩
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