Title :
A constant-modulus algorithm for carrier frequency offset estimation in OFDM systems
Author_Institution :
Sch. of Eng., Univ. of Western Sydney, Penrith, NSW, Australia
Abstract :
To estimate carrier frequency offset, a polynomial-rooting algorithm is proposed for symbols with constant modulus in OFDM systems. This algorithm makes use of the orthogonal subspace of the squared spectrum vector of the channel. Among the group of non-iterative methods, the algorithm offers the best accuracy.
Keywords :
OFDM modulation; polynomials; OFDM systems; carrier frequency offset estimation; constant-modulus algorithm; non iterative methods; orthogonal frequency-division multiplexing; orthogonal subspace; polynomial-rooting algorithm; squared spectrum vector; Australia; Baseband; Demodulation; Finite impulse response filter; Frequency division multiplexing; Frequency estimation; Iterative methods; OFDM modulation; Polynomials; Sampling methods; OFDM; carrierfrequency offset; constant modulus;
Conference_Titel :
TENCON 2009 - 2009 IEEE Region 10 Conference
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-4546-2
Electronic_ISBN :
978-1-4244-4547-9
DOI :
10.1109/TENCON.2009.5396148
