DocumentCode
3367776
Title
A new nonlinear companding transform for reducing peak-to-average power ratio of OFDM signals
Author
Cao, Ruoyun ; Yang, Xiaodong ; Ye, Rui
Author_Institution
Dept. of Electr. & Inf. Eng., Shunde Polytech., Foshan, China
fYear
2011
fDate
28-30 Oct. 2011
Firstpage
136
Lastpage
139
Abstract
In this paper we determine and modify the values of the two parameters in the companding transform function proposed previously. The CCDF of the compressed signals is derived and it shows good PAPR reduction ability. BER of the modified scheme is simulated, which shows that when combined with oversampling, the scheme can achieved good BER performance. Power spectrum density of the compressed signals is also depicted and compared with that of the original OFDM signals.
Keywords
OFDM modulation; transforms; OFDM signals; PAPR reduction; nonlinear companding transform; orthogonal frequency division multiplexing; peak-to-average power ratio; power spectrum density; Bit error rate; Distribution functions; Equations; Peak to average power ratio; Simulation; Transforms; Companding transform; OFDM; PAPR;
fLanguage
English
Publisher
ieee
Conference_Titel
Broadband Network and Multimedia Technology (IC-BNMT), 2011 4th IEEE International Conference on
Conference_Location
Shenzhen
Print_ISBN
978-1-61284-158-8
Type
conf
DOI
10.1109/ICBNMT.2011.6155911
Filename
6155911
Link To Document