Code Combination for Blind Channel Estimation in General MIMO-STBC Systems
The problem of blind channel estimation under space-time block coded (STBC) transmissions is addressed. Firstly, a blind channel estimation criterion that generalizes previous works is proposed. The technique is solely based on second-order statistics (SOS) and if the channel is identifiable, the es...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Online Access: | http://dx.doi.org/10.1155/2009/103483 |
| _version_ | 1818916378083590144 |
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| author | Javier Vía Ignacio Santamaría Jesús Pérez |
| author_facet | Javier Vía Ignacio Santamaría Jesús Pérez |
| author_sort | Javier Vía |
| collection | DOAJ |
| description | The problem of blind channel estimation under space-time block coded (STBC) transmissions is addressed. Firstly, a blind channel estimation criterion that generalizes previous works is proposed. The technique is solely based on second-order statistics (SOS) and if the channel is identifiable, the estimate is obtained as the main eigenvector of a generalized eigenvalue problem (GEV). Secondly, a new transmission technique is proposed to solve the indeterminacies associated to the blind channel estimation problem. The technique is based on the combination of different STBCs, and it can be reduced to a nonredundant precoding consisting in the rotation or permutation of the transmit antennas. Unlike other previous approaches, the proposed technique does not imply a penalty in the transmission rate or capacity of the STBC system, while it is able to avoid the ambiguities in many practical cases, which is illustrated by means of some simulation examples. |
| first_indexed | 2024-12-20T00:17:13Z |
| format | Article |
| id | doaj.art-aa7ea8177ca54eb4b3d8625f9600a614 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-12-20T00:17:13Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-aa7ea8177ca54eb4b3d8625f9600a6142022-12-21T20:00:17ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802009-01-01200910.1155/2009/103483Code Combination for Blind Channel Estimation in General MIMO-STBC SystemsJavier VíaIgnacio SantamaríaJesús PérezThe problem of blind channel estimation under space-time block coded (STBC) transmissions is addressed. Firstly, a blind channel estimation criterion that generalizes previous works is proposed. The technique is solely based on second-order statistics (SOS) and if the channel is identifiable, the estimate is obtained as the main eigenvector of a generalized eigenvalue problem (GEV). Secondly, a new transmission technique is proposed to solve the indeterminacies associated to the blind channel estimation problem. The technique is based on the combination of different STBCs, and it can be reduced to a nonredundant precoding consisting in the rotation or permutation of the transmit antennas. Unlike other previous approaches, the proposed technique does not imply a penalty in the transmission rate or capacity of the STBC system, while it is able to avoid the ambiguities in many practical cases, which is illustrated by means of some simulation examples.http://dx.doi.org/10.1155/2009/103483 |
| spellingShingle | Javier Vía Ignacio Santamaría Jesús Pérez Code Combination for Blind Channel Estimation in General MIMO-STBC Systems EURASIP Journal on Advances in Signal Processing |
| title | Code Combination for Blind Channel Estimation in General MIMO-STBC Systems |
| title_full | Code Combination for Blind Channel Estimation in General MIMO-STBC Systems |
| title_fullStr | Code Combination for Blind Channel Estimation in General MIMO-STBC Systems |
| title_full_unstemmed | Code Combination for Blind Channel Estimation in General MIMO-STBC Systems |
| title_short | Code Combination for Blind Channel Estimation in General MIMO-STBC Systems |
| title_sort | code combination for blind channel estimation in general mimo stbc systems |
| url | http://dx.doi.org/10.1155/2009/103483 |
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