Title :
Out-of-Band Power Suppression in OFDM
Author :
van de Beek, Jaap ; Berggren, Fredrik
Author_Institution :
Huawei Technol. Sweden, Kista
fDate :
9/1/2008 12:00:00 AM
Abstract :
In this letter we show that judicious modulation of non-data subcarriers renders a transmitted OFDM signal and a few of its higher-order derivatives continuous at the OFDM symbol boundaries. This novel approach results in reduced out-of-band emission: typically, it achieves over 30 dB power suppression at adjacent-channel center-frequencies.
Keywords :
OFDM modulation; OFDM symbol boundaries; adjacent-channel center-frequencies; higher-order derivatives; non-data subcarriers; out-of-band emission; out-of-band power suppression; Bandwidth; Disruption tolerant networking; Fourier transforms; OFDM modulation; Pulse modulation; Pulse shaping methods; Signal design; Transmitters; OFDM; out-of-band emission; tone reservation;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.080587
