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TIT
2008
122views more  TIT 2008»
13 years 7 months ago
An Efficient Pseudocodeword Search Algorithm for Linear Programming Decoding of LDPC Codes
Abstract--In linear programming (LP) decoding of a low-density parity-check (LDPC) code one minimizes a linear functional, with coefficients related to log-likelihood ratios, over ...
Michael Chertkov, Mikhail G. Stepanov
IJACTAICIT
2010
136views more  IJACTAICIT 2010»
13 years 4 months ago
Performance Enhancement of Wireless Communication Systems using Transmit and Receive diversity
In this paper, we describe the concatenation of Turbo/Convolutional codes with transmit and receive diversity schemes by using Space-Time Block Code. It is shown that, by using tw...
Ahmed J. Jameel
NCA
2008
IEEE
14 years 1 months ago
Flexible Parameterization of XOR based Codes for Distributed Storage
Distributed storage systems apply erasure-tolerant codes to guarantee reliable access to data despite failures of storage resources. While many codes can be mapped to XOR operatio...
Peter Sobe, Kathrin Peter
TIT
2002
146views more  TIT 2002»
13 years 7 months ago
Bounds on the performance of belief propagation decoding
We consider Gallager's soft decoding (belief propagation) algorithm for decoding low density parity check (LDPC) codes, when applied to an arbitrary binary-input symmetric-ou...
David Burshtein, Gadi Miller
ECCC
2011
188views ECommerce» more  ECCC 2011»
13 years 2 months ago
Three Query Locally Decodable Codes with Higher Correctness Require Exponential Length
Locally decodable codes are error correcting codes with the extra property that, in order to retrieve the correct value of just one position of the input with high probability, it...
Anna Gál, Andrew Mills