Title :
Blind identification of Hammerstein channels using QAM, PSK, and OFDM inputs
Author :
Mileounis, Gerasimos ; Kalouptsidis, Nicholas ; Koukoulas, Panos
Author_Institution :
Dept. of Inf. & Telecommun., Univ. of Athens, Athens, Greece
fDate :
12/1/2009 12:00:00 AM
Abstract :
This paper is concerned with the blind identification of passband and baseband Hammerstein channels using cumulants of the received sequence. The channel is excited by common communication signals such as QAM, PSK and OFDM; sparseness of the higher order cumulant lags is exploited. Exact expressions and algorithms involving the output cumulants are developed. Performance is assessed by simulations.
Keywords :
OFDM modulation; higher order statistics; phase shift keying; quadrature amplitude modulation; Hammerstein channel blind identification; OFDM inputs; PSK; QAM; baseband Hammerstein channels; communication signals; higher order cumulant lags; passband Hammerstein channels; Bandwidth; Baseband; Downlink; High power amplifiers; Nonlinear filters; OFDM; Passband; Phase shift keying; Quadrature amplitude modulation; Transmitters; Communication system nonlinearities; communication system signaling; higher order statistics; identification; power amplifiers;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2009.12.080356
