Using Reed–Muller Codes Over Channels With Synchronization and Substitution Errors

L Dolecek, V Anantharam - IEEE Transactions on Information …, 2007 - ieeexplore.ieee.org
We analyze the performance of a Reed–Muller RM \,(1,m) code over a channel that, in
addition to substitution errors, permits either the repetition of a single bit or the deletion of a …

Carrier and timing synchronization of BPSK via LDPC code feedback

EL Vallés, RD Wesel, JD Villasenor… - 2006 Fortieth Asilomar …, 2006 - ieeexplore.ieee.org
In traditional receiver architectures, symbol acquisition and tracking are performed using
phase lock techniques that are independent of the channel-code decoding process. In [1] …

Joint synchronization and SNR estimation for turbo codes in AWGN channels

J Sun, MC Valenti - IEEE transactions on communications, 2005 - ieeexplore.ieee.org
Turbo codes are sensitive to both (timing) synchronization errors and signal-to-noise ratio
(SNR) mismatch. Since turbo codes are intended to work in environments with very low …

Joint LDPC decoding and timing recovery using code constraint feedback

DU Lee, EL Valles, JD Villasenor… - IEEE Communications …, 2006 - ieeexplore.ieee.org
Timing recovery and channel decoding are traditionally performed independently. However,
we show here that the information generated during the iterative decoding of low-density …

Jitter sensitive maximum-a-posteriori sequence detection

X Yang, EM Kurtas, R Negi, X Zhang - US Patent 7,424,077, 2008 - Google Patents
A channel detector has an anchor points inserter, a desired signal calculator, a distance
calculator and a data detector. The anchor points inserter is adapted to choose values of …

Iterative timing recovery via soft decision metrics of low-density parity-check decoding

JR Bao, YF Zhan, JH Lu - IET communications, 2010 - IET
An efficient scheme for iterative timing recovery via soft decision metrics (SDMs) of low-
density parity-check (LDPC) decoding is presented. This scheme employs new metrics from …

Method and apparatus for interative noise whitening with causal and anti-causal prediction filters

MN Kaynak, EM Kurtas - US Patent 7,561,640, 2009 - Google Patents
A channel detector includes a belief propagation detector that is coupled to a channel and
adapted to receive a channel output and to generate tentative bit decisions based in part on …

Timing acquisition for low-SNR data storage channels

J Liu, H Song, BVKV Kumar - IEEE transactions on magnetics, 2003 - ieeexplore.ieee.org
As magnetic data storage densities are pushed toward Tb/in/sup 2/and beyond, advanced
signal-detection algorithms are being suggested to cope with the expected lower signal-to …

Method and device for clock recovery

S Calabro, P Kainzmaier, B Spinnler - US Patent 8,964,924, 2015 - Google Patents
(51) Int. Cl. timing phase overan observation interval of an input signal. A H04L
700(2006.01) frequency estimation is determined based on the timing H04L 25/00(2006.01) …

A synchronization technique for array-based LDPC codes in channels with varying sampling rate

L Dolecek, V Anantharam - 2006 IEEE International …, 2006 - ieeexplore.ieee.org
We describe a method for enhancing the synchronization error correction properties of an
array-based low density parity check (LDPC) code. The proposed method uses code …