Title :
Peak-to-average power ratio reduction for OFDM modems
Author :
Akhtman, J. ; Bobrovsky, B.Z. ; Hanzo, L.
Author_Institution :
Dept. of ECS, Southampton Univ., UK
Abstract :
A novel technique of reducing the peak-to-average power ratio (PAPR) of multi-carrier (MC) modulated signals is proposed. The method advocated is spectrally efficient, has a low implementational complexity and hence it is also suitable for low-power, portable implementation. Moreover, it was designed to be compatible with existing standard-based orthogonal frequency division multiplex (OFDM) systems. As an example of the performance of the proposed scheme, the amplifier back-off requirement in a terrestrial digital video broadcast (DVB-T) system can be reduced to 12 to 6 dB, while satisfying the of out-of-band emission specifications imposed by the Federal Communication Commission (FCC) spectral mask.
Keywords :
OFDM modulation; digital video broadcasting; modems; 12 to 6 dB; OFDM modems; low implementational complexity; multicarrier modulated signal; orthogonal frequency division multiplex; out-of-band emission; peak-to-average power ratio reduction; spectral mask; terrestrial digital video broadcast system; Costs; Digital video broadcasting; Employment; High power amplifiers; Modems; Modulation coding; Nonlinear distortion; OFDM modulation; Peak to average power ratio; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207815
