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Time and Frequency Synchronization for OFDMA Uplink System using the SAGE Algorithm
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Lee, Jong-Ho | - |
| dc.contributor.author | Kim, Seong-Cheol | - |
| dc.date.accessioned | 2009-07-03 | - |
| dc.date.available | 2009-07-03 | - |
| dc.date.issued | 2007-04 | - |
| dc.identifier.citation | IEEE Trans. Wireless Commun., vol. 6, pp. 1176-1181, April 2007 | en |
| dc.identifier.issn | 1536-1276 | - |
| dc.identifier.uri | https://hdl.handle.net/10371/5210 | - |
| dc.description.abstract | In this letter, we propose an iterative time and frequency synchronization scheme for orthogonal frequencydivision multiple access (OFDMA) uplink system using the space-alternating generalized expectation-maximization (SAGE) algorithm. In the proposed scheme, the expectation step of the SAGE algorithm is intended to remove the multiple-access interference (MAI) caused by the other asynchronous users. Then, the maximization step is utilized in the timing and frequency offset estimation of each asynchronous user using the MAI-canceled signals. Simulation results present that the proposed scheme shows performance enhancement in the presence of multiple asynchronous users. | en |
| dc.description.sponsorship | This work was supported by the University IT Research Center Project and Brain Korea 21 Project. | en |
| dc.language.iso | en | - |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en |
| dc.publisher | IEEE Communications Society | - |
| dc.publisher | IEEE Signal Processing Society | - |
| dc.subject | synchronization | en |
| dc.subject | multiple access interference (MAI) | en |
| dc.subject | orthogonal frequency division multiple access (OFDMA) | en |
| dc.subject | space-alternating generalized expectation-maximization (SAGE) | en |
| dc.title | Time and Frequency Synchronization for OFDMA Uplink System using the SAGE Algorithm | en |
| dc.type | Article | en |
| dc.contributor.AlternativeAuthor | 이종호 | - |
| dc.contributor.AlternativeAuthor | 김성철 | - |
| dc.identifier.doi | 10.1109/TWC.2007.348309 | - |
| dc.identifier.doi | 10.1109/TWC.2007.348309 | - |
| dc.citation.journaltitle | IEEE Transactions on Wireless Communications | - |
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