RF microelectronics
Theoretical analysis and performance of OFDM signals in nonlinear fading channels
IEEE Transactions on Wireless Communications
AEE'08 Proceedings of the 7th WSEAS International Conference on Application of Electrical Engineering
WSEAS TRANSACTIONS on COMMUNICATIONS
A new-trend model-based to solve the peak power problems in OFDM systems
Modelling and Simulation in Engineering
Simplified SNR degradation under the combined effect of imperfections parameters in OFDM system
MUSP'09 Proceedings of the 9th WSEAS international conference on Multimedia systems & signal processing
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Most of the performance studies devoted to the analysis of multicarrier systems in the presence of nonlinear distortion assume that the multicarrier signal can be modeled as a random Gaussian process regardless of modulation format, guard interval duration, and number of subcarriers. On the contrary, we present an analysis based on the discrete model of the multicarrier signal. It is shown that the discrete model provides more accurate signal-to-distortion ratio and out-of-band spectrum prediction if the number of subcarriers is small. Only the effect of third-order nonlinearity is studied; however results can also be extended to the fifth-order polynomial model. Simulation results are provided which confirm analytical derivations.