Decision-feedback multiple differential detection for space-time coded OFDM systems /
Differential detection (DD) is an attractive simple technique in flat-fading environments since it is very robust and does not require carrier phase tracking. However, performance of the conventional DD method in flat-fading channels is limited by an irreducible error floor if the fading bandwidth i...
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| Format: | Thesis eBook |
| Language: | English |
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[Place of publication not identified] :
[publisher not identified] ;
2001.
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| Online Access: | Link to OAKTrust copy |
| Summary: | Differential detection (DD) is an attractive simple technique in flat-fading environments since it is very robust and does not require carrier phase tracking. However, performance of the conventional DD method in flat-fading channels is limited by an irreducible error floor if the fading bandwidth is larger than zero. Decision-feedback differential detection (DF-DD) is found to be a very effective method to reduce such an error floor with a very low computational complexity. In this thesis, we first apply the DF-DD technique to Orthogonal Frequency-Division Multiplexing (OFDM) systems. We then develop the DF-DD receiver for single carrier systems employing two transmit antennas and space-time block coding. Finally, we develop the DF-DD receiver for space-time coded OFDM systems. The performance of the receiver algorithm developed here is demonstrated by computer simulations. |
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| Item Description: | "Major subject: Electrical Engineering". Vita. |
| Physical Description: | ix, 56 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references (leaves 53-55). |