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Time-domain impulse injection method for crest factor reduction of OFDM signals

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3 Author(s)
Zhenhua Yu ; Sch. of Electr. & Comput. Eng., Georgia Tech, Atlanta, GA, USA ; Baxley, R.J. ; Zhou, G.T.

This paper treats the problem of crest factor reduction (CFR) for orthogonal frequency division multiplexing (OFDM) signals. The proposed impulse injection method reduces the crest factor of the time-domain signal by injecting judiciously designed complex-valued impulse in selected discrete-time locations while keeping both the in-band error vector magnitude (EVM) and out-of-band spectral emission under control. Numerical examples are provided to demonstrate the effectiveness of the proposed method.

Published in:

Statistical Signal Processing Workshop (SSP), 2012 IEEE

Date of Conference:

5-8 Aug. 2012