OFO estimation methods with wide acquisition ranges for MB-OFDM-based UWB systems

Author

Bai, Lin ; Yin, Qinye

Author_Institution

MOE Key Lab. for Intell. Networks & Network Security, Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2011

fDate

22-27 May 2011

Firstpage

3568

Lastpage

3571

Abstract

In MB-OFDM-based UWB systems, the different CFOs for different bands can be obtained by only estimating the OFO. To achieve OFO estimators with wide estimation ranges, we benefit from the certain relationship between the different CFOs. The OFO is attained by estimating the CFO difference and the correlations between different bands are used. The estimator I for the TFC 1 to 4 derives the BLUE estimator with the phases of the correlations. The estimator II dedicated for the TFC 1 and 2 can achieve an even wider estimation range by exploiting the equally spaced preamble structures.

Keywords

OFDM modulation; ultra wideband communication; BLUE estimator; CFO difference; MB-OFDM-based UWB system; OFO estimation method; carrier frequency offset; multiband orthogonal frequency division multiplexing; preamble structures; wide acquisition range; Correlation; Covariance matrix; Estimation; Frequency division multiplexing; Frequency synchronization; OFDM; Synchronization; BLUE estimator; CFO estimation; MB-OFDM-based UWB systems; OFO estimation; wide estimation ranges;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on

Conference_Location

Prague

ISSN

1520-6149

Print_ISBN

978-1-4577-0538-0

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2011.5946249

Filename

5946249