the 'convolution' of the encoder over the data, which gives rise to the term 'convolutional coding'. The sliding nature of the convolutional codes facilitates...
25 KB (2,834 words) - 07:56, 4 May 2025
BCJR algorithm Convolutional code Forward error correction Interleaver Low-density parity-check code Serial concatenated convolutional codes Soft-decision...
21 KB (2,728 words) - 20:06, 25 May 2025
are not needed. The two main categories of ECC codes are block codes and convolutional codes. Block codes work on fixed-size blocks (packets) of bits or...
40 KB (4,684 words) - 10:12, 6 June 2025
modern codes do have lower complexity. Quantum convolutional coding theory offers a different paradigm for coding quantum information. The convolutional structure...
13 KB (1,960 words) - 07:30, 18 March 2025
codes:[citation needed] Linear block codes Convolutional codes It analyzes the following three properties of a code – mainly:[citation needed] Code word...
27 KB (3,712 words) - 13:40, 27 April 2025
Serial concatenated convolutional codes (SCCC) are a class of forward error correction (FEC) codes highly suitable for turbo (iterative) decoding. Data...
8 KB (997 words) - 02:17, 13 June 2024
Viterbi decoder (redirect from Convolution decoder)
that has been encoded using a convolutional code or trellis code. There are other algorithms for decoding a convolutionally encoded stream (for example...
13 KB (1,811 words) - 10:00, 21 January 2025
beat convolutional turbo codes as the forward error correction (FEC) system for the ITU-T G.hn standard. G.hn chose LDPC codes over turbo codes because...
36 KB (4,626 words) - 03:13, 7 June 2025
In telecommunications, a Hagelbarger code is a convolutional code that enables error bursts to be corrected provided that there are relatively long error-free...
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processing, standard convolutional layers can be replaced by depthwise separable convolutional layers, which are based on a depthwise convolution followed by a...
138 KB (15,585 words) - 07:00, 4 June 2025
convolutional code. In GPRS Coding Schemes CS-1 through CS-3, the convolutional code is of rate 1/2, i.e. each input bit is converted into two coded bits...
21 KB (2,417 words) - 15:10, 10 June 2025
coder is a memoryless device. Under this definition codes such as turbo codes, terminated convolutional codes and other iteratively decodable codes (turbo-like...
20 KB (3,324 words) - 15:25, 28 March 2025
GPRS (redirect from Coding Scheme)
the output of the convolutional code is punctured to achieve the desired code rate. In Coding Scheme CS-4, no convolutional coding is applied. The following...
29 KB (3,499 words) - 15:03, 26 May 2025
Reed–Solomon error correction (redirect from Reed-Solomon code)
(BCH) codes. For example, Reed–Solomon codes are used in the Digital Video Broadcasting (DVB) standard DVB-S, in conjunction with a convolutional inner...
75 KB (12,395 words) - 16:42, 29 April 2025
the inner code is not a block code but a soft-decision convolutional Viterbi-decoded code with a short constraint length. For the outer code, a longer...
17 KB (2,094 words) - 22:27, 28 May 2025
technique closely resembles a trellis lattice. The scheme is basically a convolutional code of rates (r, r+1). Ungerboeck's unique contribution is to apply the...
6 KB (732 words) - 23:02, 25 April 2024
GPS signals (redirect from Precision code)
message: It uses forward error correction (FEC) provided by a rate 1/2 convolutional code, so while the navigation message is 25-bit/s, a 50-bit/s signal is...
75 KB (10,651 words) - 14:45, 12 June 2025
codes are also equivalent to post-transforming polar codes with certain cyclic codes. At short blocklengths, such codes outperform both convolutional...
11 KB (1,308 words) - 22:43, 25 May 2025
k / n {\displaystyle \leq R\cdot k/n} . For example: The code rate of a convolutional code will typically be 1⁄2, 2⁄3, 3⁄4, 5⁄6, 7⁄8, etc., corresponding...
2 KB (244 words) - 05:42, 12 April 2024
decoding tree codes. Sequential decoding is mainly used as an approximate decoding algorithm for long constraint-length convolutional codes. This approach...
7 KB (1,270 words) - 10:17, 10 April 2025
partitioned into block codes and convolutional codes, although turbo codes can be seen as a hybrid of these two types. Linear codes allow for more efficient...
17 KB (2,694 words) - 03:34, 28 November 2024
Error detection and correction (redirect from Error-detecting code)
and RAM. Error-correcting codes are usually distinguished between convolutional codes and block codes: Convolutional codes are processed on a bit-by-bit...
35 KB (4,301 words) - 11:57, 16 June 2025
Viterbi algorithm (redirect from Viterbi coding)
(HMM). The algorithm has found universal application in decoding the convolutional codes used in both CDMA and GSM digital cellular, dial-up modems, satellite...
20 KB (2,664 words) - 22:57, 10 April 2025
convolution Logarithmic convolution Vandermonde convolution Convolution, in digital image processing, with a Kernel (image processing) Convolutional code...
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algorithm" may also refer specifically to an algorithm for decoding a convolutional code. Online algorithm Streaming algorithm "A Dictionary of Computing at...
1 KB (143 words) - 23:31, 14 September 2024
The convolutional sparse coding paradigm is an extension of the global sparse coding model, in which a redundant dictionary is modeled as a concatenation...
38 KB (6,082 words) - 09:32, 29 May 2024
error-detecting codes. Linear codes are usually implemented as systematic error-correcting codes (e.g., Reed-Solomon codes in CDs). Convolutional codes are implemented...
4 KB (541 words) - 20:27, 28 September 2023
Recursive Systematic Convolutional code, a type of convolutional code Reed–Solomon code, a non-binary cyclic error-correcting code Regular Slotted Container...
4 KB (492 words) - 21:00, 3 April 2025
Decoding methods (redirect from Minimum distance code)
bitstream that has been encoded using forward error correction based on a convolutional code. The Hamming distance is used as a metric for hard decision Viterbi...
12 KB (1,867 words) - 06:19, 12 March 2025
turbo code decoding problem, where the channel is thought of as a rate 1 convolutional code and the error correction coding is the second code. In 1997...
11 KB (1,384 words) - 21:21, 31 March 2024