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Effects of Spectral Shaping on OFDM Transmission Performance in Nonlinear Channels

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1 Author(s)
Nakajima, S. ; Dept. of Inf. & Electron. Eng., Niigata Inst. of Technol., Niigata

This paper proposes a spectral shaping method for OFDM signals that reduces nonlinear distortion. In this method, new subcarriers, which are produced from original subcarriers, are inserted into a conventional OFDM signal to smooth the spectral shape. The results of computer simulations in a nonlinear channel show that spectral-shaped OFDM signals have lower out-of-band spectrum properties and bit-error rate than conventional OFDM signals when an iterative clipping-and-filtering technique is used in the transmitter.

Published in:

Mobile and Wireless Communications Summit, 2007. 16th IST

Date of Conference:

1-5 July 2007