Title :
A carrier frequency offset correction scheme for MC-CDMA
Author :
McCormick, A.C. ; Grant, P.M. ; Thompson, J.S. ; Al-Susa, E.A.
Author_Institution :
Dept. Electron. & Electr. Eng., Edinburgh Univ., UK
Abstract :
A novel algorithm for carrier frequency offset correction in MC-CDMA is investigated. The algorithm uses coherently detected data symbols to provide phase offset information, which is used to modify the carrier frequency and successively reduce the offset with every data symbol. Comparison between this frequency correction algorithm, a closely related phase compensation algorithm and a two-symbol maximum likelihood estimation algorithm is provided
Keywords :
OFDM modulation; code division multiple access; maximum likelihood estimation; multipath channels; multiuser channels; phase estimation; MC-CDMA; MLE; OFDM; QPSK; average phase difference; bit error ratio; carrier frequency; carrier frequency offset correction; coherently detected data symbols; frequency correction algorithm; frequency offset estimation; multipath channel; orthogonal frequency division multiplexing; phase compensation algorithm; phase offset information; two-symbol maximum likelihood estimation algorithm; Binary phase shift keying; Downlink; Frequency estimation; Local oscillators; Multicarrier code division multiple access; OFDM; Phase detection; Phase estimation; Phase frequency detector; Quadrature phase shift keying;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944982
