Abstract | ||
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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 |
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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 Kim | 1 | 44 | 16.87 |
Sang-Ho Ahn | 2 | 11 | 9.66 |
Seung Hwan Yoo | 3 | 0 | 1.01 |
Sun Yong Kim | 4 | 130 | 23.18 |
Seok-Ho Yoon | 5 | 256 | 47.78 |