Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4957089 | Optical Fiber Technology | 2017 | 5 Pages |
Abstract
The influence of the electrical phase modulation index h in the performance of constant-envelope orthogonal frequency division multiplexing (CE-OFDM) in coherent detection optical systems is treated analytically and its range of validity examined by simulations. A compromise between h and subcarrier mapping is identified according to differences in sensitivity related to non-linearities inserted by the optical modulator. It is shown that the proposed scheme outperforms conventional coherent detection OFDM systems, which is strongly dependent on both phase and optical modulation indexes.
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Authors
Vinicius O.C. Dias, Ezequiel da V. Pereira, Helder R.O. Rocha, Marcelo E.V. Segatto, Jair A.L. Silva,