Title :
Simulation-based analysis of nonlinearities in multicarrier OFDM signals
Author :
O´Droma, Máirtin ; Mgebrishvili, Nana ; Goacher, Anthony
Author_Institution :
Dept. of Electron. & Comput. Eng., Limerick Univ., Ireland
Abstract :
A new expression for the statistical description of the output of an OFDM signal applied to a general small and large signal model of a memoryless nonlinear amplifier is derived. Based on this some new results for modulation fidelity (MF) deterioration due to power amplifier (PA) nonlinearities and its amelioration by the application of PA linearisation are presented.
Keywords :
Gaussian processes; OFDM modulation; harmonic distortion; intermodulation distortion; power amplifiers; statistical analysis; EVM; Gaussian processes; IMD; MF; error vector magnitude degradation; intermodulation distortion; memoryless nonlinear amplifier; modulation fidelity deterioration; multicarrier OFDM signal; nonlinear distortion; orthogonal frequency division multiplexing; power amplifier nonlinearity; statistical description; Analytical models; Digital video broadcasting; Gaussian processes; Nonlinear distortion; OFDM modulation; Power amplifiers; RF signals; Radio frequency; Radiofrequency amplifiers; Signal analysis;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2004 IEEE 5th Workshop on
Print_ISBN :
0-7803-8337-0
DOI :
10.1109/SPAWC.2004.1439316
