A Joint Linearization/Companding Approach for Improving a CO-OFDM Transmitter
A Joint Linearization/Companding Approach for Improving a CO-OFDM Transmitter
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DOI：
10.1109/lpt.2015.2455674
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发表时间：
2015-10
影响因子：
2.6
通讯作者：
S. Bejan;S. Azou;P. Morel;C. Diouf;M. Telescu;N. Tanguy;A. Sharaiha
中科院分区：
文献类型：
--
作者：
S. Bejan;S. Azou;P. Morel;C. Diouf;M. Telescu;N. Tanguy;A. Sharaiha
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 systems employing a semiconductor optical amplifier. The PAPR reduction is performed via Wang's nonlinear companding transform, which has been recently pointed out as a pertinent choice for optical communications, and a filter lookup table scheme is considered for linearizing the transmitter. Experimental results prove the effectiveness of the proposed scheme, as a lower error vector magnitude is achieved with respect to system implementations using only the PAPR reduction or linearization.
