DocumentCode
1544874
Title
Multiplication-Free Estimation of Integer Frequency Offset for OFDM-Based DRM Systems
Author
You, Young-Hwan ; Kwon, Ki-Won
Author_Institution
uT Commun. Res. Inst., Sejong Univ., Seoul, South Korea
Volume
17
Issue
10
fYear
2010
Firstpage
851
Lastpage
854
Abstract
This letter proposes a low complexity integer frequency offset (IFO) estimation scheme in an orthogonal frequency division multiplexing (OFDM) based digital radio mondiale plus (DRM+) system with nonuniform phased pilot symbols. To reduce the computational complexity, the pilot symbols used for frequency estimation in the DRM+ system are partitioned into a number of pilot subsets, and pilots in each subset are phase-rotated to have a unique phase so that the estimator is made computationally efficient.
Keywords
digital radio; estimation theory; frequency division multiplexing; OFDM-based DRM+ systems; digital radio mondiale plus system; integer frequency offset estimation; multiplication-free estimation; nonuniform phased pilot symbols; orthogonal frequency division multiplexing; Digital radio mondiale plus (DRM+); OFDM; frequency estimation;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/LSP.2010.2060327
Filename
5518374
Link To Document