Title :
Real-time digital Nyquist-WDM and OFDM signal generation: Spectral efficiency versus DSP complexity
Author :
Schmogrow, R. ; Bouziane, Rachid ; Meyer, Michael ; Milder, Peter A. ; Schindler, Philipp C. ; Bayvel, Polina ; Killey, Robert I. ; Freude, W. ; Leuthold, Juerg
Author_Institution :
Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
We investigated the performance of Nyquist WDM and OFDM with respect to required DSP complexity. We demonstrate Nyquist pulse-shaping requiring less resources than IFFT-based OFDM for a similar performance. Tests are performed with QPSK/16QAM in a three-carrier WDM scenario.
Keywords :
OFDM modulation; quadrature amplitude modulation; quadrature phase shift keying; signal processing; wavelength division multiplexing; 16QAM; DSP complexity; Nyquist pulse shaping; OFDM signal generation; QPSK; real time digital Nyquist WDM signal generation; spectral efficiency; Digital signal processing; Finite impulse response filters; OFDM; Optical filters; Optical transmitters; Phase shift keying; Wavelength division multiplexing;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
