Array Convolutional Low-Density Parity-Check Codes
نویسندگان
چکیده
منابع مشابه
On Low-Density Parity-Check Convolutional Codes
Abstract – In this paper a formal theory, construction methods, and a random ensemble approach for low-density parity-check convolutional codes (including turbo-codes) are presented. The principles of iterative decoding of low-density parity-check (LDPC) convolutional codes are given, and an iterative algorithm for decoding of homogeneous LDPC convolutional codes is described. Some simulation r...
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We look at the intersection of convolutional codes with high rate low-density parity-check codes. Threshold values are obtained with EXIT charts. Simulations show a gain of 1.5dB over a standard deepspace code.
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Low density parity check (LDPC) block codes have been shown to achieve near capacity performance for binary transmission over noisy channels. Block codes, however, require splitting the data to be transmitted into frames, which can be a disadvantage in some applications. Convolutional codes, on the other hand, have no such requirement, and are hence well suited for continuous transmission. In [...
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Low Density Parity Check Codes originally invented by Gallagher and subsequently rediscovered by multiple groups 30 years later has become the best known error correcting code in a variety of situations. In this paper, we review regular and irregular LDPC codes. We describe a number of message passing decoders for decoding these codes and explain their operation via examples. Density evolution,...
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A low-density parity-check code is a code specified by a parity-check matrix with the following properties : each column contains a small fixed numberj > 3 of I’s and each row contains a small fixed number k > j of 1’s. The typical minimum distance of these codes increases linearly with block length for a fixed rate and fixed j. When used with maximum likelihood decoding on a snfhciently quiet ...
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ژورنال
عنوان ژورنال: IEEE Communications Letters
سال: 2014
ISSN: 1089-7798
DOI: 10.1109/lcomm.2013.120713.132177