Carrier frequency offset estimation based on data-dependent superimposed training for OFDM systems

Author

Zhang, Qinjuan ; Wu, Muqing ; Guo, Qilin ; Zhang, Tingting ; Zhang, Rui

Author_Institution

Lab. of Network Syst. Archit. & Convergence, Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2012

fDate

23-25 April 2012

Firstpage

1

Lastpage

4

Abstract

In this paper, we propose a solution to the carrier frequency offset (CFO) estimation based on data dependent superimposed training scheme for Orthogonal Frequency Division Multiplexing (OFDM) systems. The proposed CFO estimation can improve the bandwidth efficiency compared with traditional pilot assistant scheme because it consumes no extra bandwidth for the training sequence is superimposed to the data sequence. The simulations demonstrate that the proposed estimator can approach the performance of the pilot assistant scheme very well in terms of MSE and BER with great bandwidth efficiency improvement. Overall, the proposed solution outperforms the traditional pilot assistant scheme.

Keywords

OFDM modulation; error statistics; frequency estimation; mean square error methods; BER; CFO estimation; MSE; OFDM systems; bandwidth efficiency; bit error rate; carrier frequency offset estimation; data sequence; data-dependent superimposed training scheme; orthogonal frequency division multiplexing system; pilot assistant scheme; training sequence; Bandwidth; Channel estimation; Estimation; Interference; OFDM; Receivers; Training; Orthogonal Frequency Division Multiplexing (OFDM); carrier frequency offset (CFO); superimposed training;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (ICT), 2012 19th International Conference on

Conference_Location

Jounieh

Print_ISBN

978-1-4673-0745-1

Electronic_ISBN

978-1-4673-0746-8

Type

conf

DOI

10.1109/ICTEL.2012.6221300

Filename

6221300