Title :
Power Spectral Density and Cubic Metric for the OFDM/OQAM Modulation
Author :
Skrzypczak, Alexandre ; Siohan, Pierre ; Javaudin, Jean-Philippe
Author_Institution :
Div. of Res. & Dev., France Telecom, Cesson Sevigne
Abstract :
OFDM/OQAM is now a recognized alternative to conventional OFDM for the transmission of signals over multipath fading channels. Indeed with OFDM/OQAM, an appropriate pulse shaping can be introduced to fight against time and frequency dispersion. The paper aims at showing that this pulse shaping gives interesting spectral properties in the case of a cubic nonlinear power amplifier. In a second step, an original algorithm is also proposed to reduce either the peak-to-average power ratio (PAPR) or the cubic metric (CM) of the OFDM/OQAM signal
Keywords :
OFDM modulation; fading channels; multipath channels; power amplifiers; pulse shaping; quadrature amplitude modulation; time-frequency analysis; OFDM-OQAM modulation; cubic metric; cubic nonlinear power amplifier; multipath fading channels; peak-to-average power ratio; power spectral density; pulse shaping; time-frequency dispersion; Amplitude modulation; Fading; Information technology; OFDM modulation; Peak to average power ratio; Power amplifiers; Pulse amplifiers; Pulse shaping methods; Quadrature amplitude modulation; Signal processing; Cubic Metric; OFDM/OQAM; Peak-to-Average Power Ratio; Power Spectral Density; nonlinear amplification;
Conference_Titel :
Signal Processing and Information Technology, 2006 IEEE International Symposium on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-9753-3
Electronic_ISBN :
0-7803-9754-1
DOI :
10.1109/ISSPIT.2006.270916
