Title :
State-space estimation for OFDM and SC-FDE schemes with strongly varying carrier frequency offset
Author :
Pedrosa, Pedro ; Dinis, Rui ; Nunes, Fernando
Author_Institution :
Inst. Super. Tecnico, Lisboa
Abstract :
Block transmission in wireless communications systems is very sensitive to Carrier Frequency Offset (CFO). In order to reduce the number of pilot symbols used in the estimation of rapidly-varying CFO it was proposed to use a truncated Taylor´s series to predict the CFO, where the derivatives up to order d -1 of the series terms are recursively estimated with a d-order Kalman filter (KF). We propose to compare the performance of fourth-order KF predictor in the most popular block transmission systems: OFDM and SC-FDE systems.
Keywords :
Kalman filters; OFDM modulation; channel estimation; equalisers; radiocommunication; recursive estimation; OFDM system; SC-FDE system; block transmission; carrier frequency offset; d-order Kalman filter; recursive estimation; single carrier frequency-domain equalization; state-space estimation; truncated Taylor series; wireless communications system; Bandwidth; Frequency estimation; Maximum likelihood estimation; OFDM; Recursive estimation; State estimation; Taylor series; Time division multiple access; Transmitters; Wireless communication; Carrier frequency offset; Kalman filter; orthogonal frequency division multiplexing; single carrier frequency-domain equalization;
Conference_Titel :
Communications and Information Technologies, 2007. ISCIT '07. International Symposium on
Conference_Location :
Sydney,. NSW
Print_ISBN :
978-1-4244-0976-1
Electronic_ISBN :
978-1-4244-0977-8
DOI :
10.1109/ISCIT.2007.4392243
