General pilot-aided scheme for OFDM reception in fast varying channels
In high mobility scenarios, the channel variation over an OFDM symbol period destroys subcarrier orthogonality, and results in intercarrier interference (ICI). Recently, a piece-wise linear model has been proposed to mitigate ICI by approximating the channel variation over an OFDM symbol by linear m...
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| Format: | Book Section |
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IEEE
2012
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| _version_ | 1796857457206624256 |
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| author | Tarbosh, Sami S. Abd. Rahman, Tharek Seman, Norhudah |
| author_facet | Tarbosh, Sami S. Abd. Rahman, Tharek Seman, Norhudah |
| author_sort | Tarbosh, Sami S. |
| collection | ePrints |
| description | In high mobility scenarios, the channel variation over an OFDM symbol period destroys subcarrier orthogonality, and results in intercarrier interference (ICI). Recently, a piece-wise linear model has been proposed to mitigate ICI by approximating the channel variation over an OFDM symbol by linear model. However, for high Doppler spread the channel over an OFDM symbol exhibit high order variation. In this paper, a generalized scheme is proposed, where the channel variation over an OFDM symbol is approximated by a general polynomial model. Simulation results show that, at a high Doppler spread, the proposed scheme can achieve a significant improvement in the BER of OFDM over the piece-wise estimator. |
| first_indexed | 2024-03-05T18:58:04Z |
| format | Book Section |
| id | utm.eprints-35794 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T18:58:04Z |
| publishDate | 2012 |
| publisher | IEEE |
| record_format | dspace |
| spelling | utm.eprints-357942017-02-04T06:17:46Z http://eprints.utm.my/35794/ General pilot-aided scheme for OFDM reception in fast varying channels Tarbosh, Sami S. Abd. Rahman, Tharek Seman, Norhudah TK Electrical engineering. Electronics Nuclear engineering In high mobility scenarios, the channel variation over an OFDM symbol period destroys subcarrier orthogonality, and results in intercarrier interference (ICI). Recently, a piece-wise linear model has been proposed to mitigate ICI by approximating the channel variation over an OFDM symbol by linear model. However, for high Doppler spread the channel over an OFDM symbol exhibit high order variation. In this paper, a generalized scheme is proposed, where the channel variation over an OFDM symbol is approximated by a general polynomial model. Simulation results show that, at a high Doppler spread, the proposed scheme can achieve a significant improvement in the BER of OFDM over the piece-wise estimator. IEEE 2012 Book Section PeerReviewed Tarbosh, Sami S. and Abd. Rahman, Tharek and Seman, Norhudah (2012) General pilot-aided scheme for OFDM reception in fast varying channels. In: 2012 International Conference on Computer and Communication Engineering, ICCCE 2012. IEEE, New York, USA, pp. 932-935. ISBN 978-146730478-8 http://dx.doi.org/10.1109/ICCCE.2012.6271353 DOI:10.1109/ICCCE.2012.6271353 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Tarbosh, Sami S. Abd. Rahman, Tharek Seman, Norhudah General pilot-aided scheme for OFDM reception in fast varying channels |
| title | General pilot-aided scheme for OFDM reception in fast varying channels |
| title_full | General pilot-aided scheme for OFDM reception in fast varying channels |
| title_fullStr | General pilot-aided scheme for OFDM reception in fast varying channels |
| title_full_unstemmed | General pilot-aided scheme for OFDM reception in fast varying channels |
| title_short | General pilot-aided scheme for OFDM reception in fast varying channels |
| title_sort | general pilot aided scheme for ofdm reception in fast varying channels |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| work_keys_str_mv | AT tarboshsamis generalpilotaidedschemeforofdmreceptioninfastvaryingchannels AT abdrahmantharek generalpilotaidedschemeforofdmreceptioninfastvaryingchannels AT semannorhudah generalpilotaidedschemeforofdmreceptioninfastvaryingchannels |