| Paper: | SPCOM-P6.12 | ||
| Session: | Channel Estimation & Equalization I | ||
| Time: | Wednesday, May 17, 14:00 - 16:00 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communication: Channel modeling and estimation, training schemes | ||
| Title: | AN EM-MAP-BLOCK ALGORITHM FOR SEMI-BLIND CHANNEL ESTIMATION | ||
| Authors: | Sami Touati, Université de Marne-la-Vallée, France | ||
| Abstract: | In this paper, we propose a semi-blind MAP (maximum “a posteriori”) channel estimation method based on an Expectation- Maximization Block algorithm (EM-MAP-Block). In the OFDM communication context, our algorithm still have a linear arithmetical complexity. However, it yields to an SNR improvement going up to 3.5 dB compared to classical training sequences based channel estimation method in the context of 5 GHz OFDM WLANs. The new algorithm performs better than already existing recursive algorithms and block algorithms. | ||
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