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Iterative channel estimation and LDPC decoding with encoded pilots
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DOI：10.1109/TVT.2007.901953.png)
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摘要
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This paper proposes to encode pilot bits together with information bits by using a systematic. encoder and applying them to an iterative receiver, where channel estimation and decoding are iteratively performed. This paper then shows why and how the encoded pilot bits can give a positive gain (over a conventional uncoded pilot system. Specifically, this paper considers an orthogonal frequency-division multiplexing system that is encoded by a low-density parity-check code under a frequency-selective fading channel and shows theoretical analysis as well as simulation results.
Keyword:
channel estimation
encoded pilot (EP)
iterative receiver
low-density parity-check (LDPC)
orthogonal frequency-division multiplexing (OFDM)
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期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
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