论文信息 - Raised-Cosine OFDM for Enhanced Out-of-Band Suppression at Low Subcarrier Counts

Raised-Cosine OFDM for Enhanced Out-of-Band Suppression at Low Subcarrier Counts

Raised-cosine instead of rectangular windowing of OFDM symbols provides a steeper spectral roll-off. After dispersion-compensated transmission, inverse windowing at the receiver maintains orthogonality. Therefore, multiple OFDM bands even with few subcarriers can be efficiently multiplexed.

[1] Y Tang,et al. Coherent optical OFDM: theory and design. , 2008, Optics express.

[2] S. Personick. Receiver design for digital fiber optic communication systems, II , 1973 .

[3] R Schmogrow,et al. Real-time Nyquist pulse generation beyond 100 Gbit/s and its relation to OFDM. , 2012, Optics express.

[4] M. Winter,et al. Error Vector Magnitude as a Performance Measure for Advanced Modulation Formats , 2012, IEEE Photonics Technology Letters.

[5] S. H. Muller-Weinfurtner. Optimum Nyquist windowing in OFDM receivers , 2001 .