Title :
Trapezoidal companding scheme for peak-to-average power ratio reduction of OFDM signals
Author :
Hou, Junhui ; Ge, J.H. ; Li, Jie
Author_Institution :
State Key Lab. of Integrated Services Networks, Xidian Univ., Xi´an, China
Abstract :
A novel nonlinear companding scheme is proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. This scheme can transform the original Gaussian-distributed OFDM signals into trapezoidal-distributed. Moreover, by properly choosing variable parameters of the proposed scheme, it can achieve an effective trade-off between PAPR reduction and bit error rate performance, which gives the OFDM system more design flexibility.
Keywords :
Gaussian distribution; OFDM modulation; error statistics; OFDM signals; PAPR reduction; bit error rate performance; nonlinear companding scheme; original Gaussian-distributed OFDM signals; orthogonal frequency division multiplexing signals; peak-to-average power ratio reduction; trapezoidal companding scheme;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.2180
