A Robust Sampling Frequency Offset Estimator for WLAN-OFDM

Young-Hwan YOU
Taewon HWANG
Kwang-Soo JEONG
Jae-Hoon YI

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E92-A    No.6    pp.1523-1525
Publication Date: 2009/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E92.A.1523
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
OFDM,  WLAN,  sampling frequency offset,  

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This letter presents a noise-robust sampling frequency offset (SFO) estimation scheme for OFDM-based WLAN systems. Mean square error of the proposed estimation scheme is derived and simulation results are provided to verify our analysis. The proposed SFO estimator has an improved performance over the existing schemes with a reduction of the estimation range.