Title :
Offset companding technique for peak-to-average power ratio reduction of OFDM signals
Author_Institution :
Wireless Commun. Technol. Lab, Chunghwa Telecomm Labs., Taiwan
Abstract :
An offset instantaneous digital companding scheme was proposed to reduce peak-to-average-power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signal. The deliberate constant offsets were added in front of the compressor to reduce the dynamic range of the input signal. The performance of the proposed schemes were evaluated and compared with the other PAPR techniques by computer simulations. It was shown that the PAPR was effectively reduced using the proposed scheme.
Keywords :
OFDM modulation; error statistics; transfer functions; BER; OFDM signals; error statistics; offset instantaneous digital companding scheme; orthogonal frequency division multiplexing; peak-to-average power ratio reduction; transfer functions; Bit error rate; Communications technology; Dynamic range; OFDM; Partial transmit sequences; Peak to average power ratio; Quadrature amplitude modulation; Telecommunications; Transfer functions; Wireless communication;
Conference_Titel :
Local and Metropolitan Area Networks, 2004. LANMAN 2004. The 13th IEEE Workshop on
Print_ISBN :
0-7803-8551-9
DOI :
10.1109/LANMAN.2004.1338437
