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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Changkyu Seol Kyungwhoon Cheun |
| Copyright Year | 2006 |
| Description | Author affiliation: Div. of Electr. & Comput. Eng., Pohang Univ. of Sci. & Technol., Pohang (Changkyu Seol; Kyungwhoon Cheun) |
| Abstract | An efficient synchronization scheme based on a repetitive preamble structure for orthogonal frequency division multiplexing systems was proposed by Schmidl and Cox. However, standard autocorrelation based estimation algorithms result in a plateau in the timing metric due to the cyclic prefix (CP), resulting in a region of uncertainty. Several modifications, either to the preamble structure itself or the estimation algorithm, have been proposed to remedy this problem. In this paper, we present a maximum-likelihood (ML) symbol timing estimation algorithm taking into account the presence of the CP. The performance of its practical modification is evaluated via computer simulations. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 136888 |
| Page Count | 5 |
| File Format | |
| ISBN | 1424400627 |
| DOI | 10.1109/VTCF.2006.341 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-09-25 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Timing Maximum likelihood estimation Frequency synchronization OFDM modulation Computer simulation Downlink Frequency estimation Autocorrelation Uncertainty Hardware |
| Content Type | Text |
| Resource Type | Article |
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