Title
Integer frequency offset detection methods for OFDM-based WLAN systems
Abstract
Recently, a frequency offset estimation method for orthogonal frequency division multiplexing (OFDM) has been proposed by Ren et al. (REA) [9]. The method can estimate an frequency offset for any training symbol structure. In the REA method, however, the integer frequency offset detection probability is rapidly varying according to the fractional frequency offset. In this paper, we first analyze the REA frequency offset estimation method, and define new detection criteria suitable for integer frequency offset detection. Then, we propose two efficient integer frequency offset estimation methods based on maximum likelihood method. The proposed methods overcome the drawback of the REA method, maintaining its advantage. The numerical results demonstrate that the proposed methods outperform the REA method in terms of the integer frequency offset detection probability.
Year
DOI
Venue
2008
10.1145/1352793.1352831
ICUIMC
Keywords
DocType
Citations 
orthogonal frequency division multiplexing,detection method,REA frequency,maximum likelihood method,efficient integer frequency,detection probability,REA method,fractional frequency,integer frequency,estimation method,OFDM-based WLAN system,proposed method
Conference
0
PageRank 
References 
Authors
0.34
1
5
Name
Order
Citations
PageRank
Sanghun Kim14416.87
Sang-Ho Ahn2119.66
Seung Hwan Yoo301.01
Sun Yong Kim413023.18
Seok-Ho Yoon525647.78