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

fYear

2007

fDate

17-19 Oct. 2007

Firstpage

1446

Lastpage

1451

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCIT.2007.4392243

Filename

4392243