Distortion-compensation scheme for PAPR reduction of OFDM signals

Authors:
Yongpeng Wu;Wenjing Wang;Xiqi Gao
Affiliations:
National Mobile Communications Research Laboratory, Nanjing, China;National Mobile Communications Research Laboratory, Nanjing, China;National Mobile Communications Research Laboratory, Nanjing, China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

Citing 2
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Performance of the deliberate clipping with adaptive symbol selection for strictly band-limited OFDM systems

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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.