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Information-reduced Carrier Synchronization of Iterative Decoded BPSK and QPSK using Soft Decision (Extrinsic) FeedbackThis paper addresses the carrier-phase estimation problem under low SNR conditions as are typical of turbo- and LDPC-coded applications. In previous publications by the first author, closed-loop carrier synchronization schemes for error-correction coded BPSK and QPSK modulation were proposed that were based on feeding back hard data decisions at the input of the loop, the purpose being to remove the modulation prior to attempting to track the carrier phase as opposed to the more conventional decision-feedback schemes that incorporate such feedback inside the loop. In this paper, we consider an alternative approach wherein the extrinsic soft information from the iterative decoder of turbo or LDPC codes is instead used as the feedback.
Document ID
20090026416
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Simon, Marvin
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Valles, Esteban
(California Univ. Los Angeles, CA, United States)
Jones, Christopher
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
November 27, 2008
Subject Category
Mathematical And Computer Sciences (General)
Meeting Information
Meeting: GLOBECOM
Location: San Francisco, CA
Country: United States
Start Date: November 27, 2006
Distribution Limits
Public
Copyright
Other
Keywords
carrier synchronization
iterative decoding

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