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M-QAM-OFDM system performance in the presence of a nonlinear amplifier and phase noise

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2 Author(s)
Costa, E. ; Siemens AG, Munich, Germany ; Pupolin, S.

The orthogonal frequency-division multiplexing (OFDM) modulation format has been proposed in Europe as the standard for broadcasting both audio and television digital signals and for wide-band wireless communication systems (e.g., HIPERLAN II). The performance of the OFDM scheme is severely affected by the nonlinearity of the high-power amplifier at the transmitter end and by the phase noise of the oscillators. In this paper, we investigate the joint effects induced on the OFDM signal by the amplifier nonlinearity and by the phase noise. An accurate statistical description of each contribution to the signal distortion is provided. Theoretical results show perfect agreement with those obtained by simulation and they can be used to derive the OFDM system performance, without the need to run extensive simulations

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Communications, IEEE Transactions on  (Volume:50 ,  Issue: 3 )