Title :
A technique for mitigation of both nonlinear and frequency offset effects in OFDM-based systems
Author :
Ermolova, Natalia Y.
Abstract :
In this paper, we emphasize the necessity of using crest factor (CF) reduction methods in the combination with inter-carrier interference self-cancellation techniques (ICI SCT) that employ correlation coding in the frequency domain. We present a technique that jointly mitigates nonlinear and frequency offset effects in OFDM-based communication systems. We suggest to modify ICI SCT by separate processing each component of the coded signal at the transmitter. Such a modification actually doesn´t affect ICI cancellation ability of the ICI SCT while cancels the effects of crest factor (CF) enhancement observed after application of ICI SCT.
Keywords :
OFDM modulation; correlation methods; encoding; frequency-domain analysis; intercarrier interference; interference suppression; OFDM-based communication system; correlation coding; crest factor reduction method; frequency domain; frequency offset effect mitigation; intercarrier interference self-cancellation technique; nonlinear offset effect mitigation; Fluctuations; Frequency domain analysis; High power amplifiers; Interference; Nonlinear distortion; OFDM; Power amplifiers; Power generation; Signal processing; Transmitters; Frequency offset; OFDM; intercarrier interference; nonlinear high power amplifier;
Conference_Titel :
EUROCON 2009, EUROCON '09. IEEE
Conference_Location :
St.-Petersburg
Print_ISBN :
978-1-4244-3860-0
Electronic_ISBN :
978-1-4244-3861-7
DOI :
10.1109/EURCON.2009.5167870