Title :
Distortion-Compensation Scheme for PAPR Reduction of OFDM Signals
Author :
Wu, Yongpeng ; Wang, Wenjing ; Gao, Xiqi
Author_Institution :
Nat. Mobile Commun. Res. Lab., Nanjing, China
Abstract :
A distortion-compensation scheme is proposed for the PAPR reduction of orthogonal frequency division multiplexing (OFDM) signal. In the transmitter, clipping the peak envelope of the input signal to a predetermined value will cause in-band distortion. This distortion is encoded as clipping information and transmitted in the next block. In the receiver, the in-band distortion is compensated by the clipping information. The proposed scheme can achieve the same PAPR reduction effect as the conventional clipping scheme without seriously degradation of BER performance, at the cost of slightly spectral efficiency loss.
Keywords :
OFDM modulation; compensation; distortion; encoding; error statistics; radio receivers; radio transmitters; spectral analysis; BER performance degradation; OFDM signal; PAPR reduction effect; in-band distortion encoding; orthogonal frequency division multiplexing signal; receiver in-band distortion-compensation scheme; spectral efficiency loss; transmitter peak envelope clipping scheme; wireless communication; Bit error rate; Degradation; Distortion; Fading; Laboratories; Mobile communication; Noise cancellation; OFDM; Peak to average power ratio; Transmitters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5302520
