Title :
New companding transform for PAPR reduction in OFDM
fDate :
4/1/2010 12:00:00 AM
Abstract :
High peak-to-average power ratio (PAPR) is a major drawback of orthogonal frequency division multiplexing (OFDM) systems. Among the various PAPR reduction techniques, companding transform appears attractive for its simplicity and effectiveness. This paper proposes a new companding algorithm. Compared with the others, the proposed algorithm offers an improved bit error rate and minimized out-of-band interference while reducing PAPR effectively. Theoretical analysis and numerical simulation are presented.
Keywords :
OFDM modulation; error statistics; interference (signal); OFDM; PAPR reduction; bit error rate; companding algorithm; companding transform; out-of-band interference; peak-to-average power ratio; Analog-digital conversion; Bit error rate; Digital video broadcasting; Frequency division multiplexing; High power amplifiers; Interference; Numerical simulation; OFDM; Peak to average power ratio; WiMAX; Companding, OFDM, PAPR;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.04.092030
