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Journal Article Iterative Channel Estimation and LDPC Decoding With Encoded Pilots
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Authors
Mi-Kyung Oh, Hyuck M. Kwon, Dong-Jo Park, Yong Hoon Lee
Issue Date
2008-01
Citation
IEEE Transactions on Vehicular Technology, v.57, no.1, pp.273-285
ISSN
0018-9545
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/TVT.2007.901953
Abstract
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. © 2008 IEEE.
KSP Keywords
Channel estimation(CE), Frequency Selective Fading Channels, Frequency selective fading(FF), Iterative channel estimation, LDPC decoding, Low Density Parity Check(LDPC), Orthogonal Frequency-Division Multiplexing(OFDM), Parity check codes, Theoretical Analysis, iterative receiver, pilot system