Ahmet Inan
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272440d749
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better not to be clever here
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2023-06-07 12:27:01 +02:00 |
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Ahmet Inan
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ebb989ce50
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wait for more errors to get a better estimation
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2023-06-01 07:28:17 +02:00 |
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Ahmet Inan
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8370e6a51c
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added SIMD acceleration for GF(2^8) and GF(2^16)
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2023-05-09 16:04:32 +02:00 |
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Ahmet Inan
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078ae40d83
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merged encoder and decoder
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2023-05-08 08:12:17 +02:00 |
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Ahmet Inan
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26e83f13d6
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optimize for Raspberry Pi 4
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2023-05-05 14:20:00 +02:00 |
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Ahmet Inan
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986059694e
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added support for aarch64
__ARM_NEON__ is not defined on gcc anymore ..
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2023-05-05 08:06:59 +02:00 |
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Ahmet Inan
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f2ebaf4504
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allow user to decode block by block
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2023-04-28 10:55:46 +02:00 |
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Ahmet Inan
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daa622d1eb
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show some numbers
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2023-04-24 15:44:19 +02:00 |
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Ahmet Inan
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bb527dd888
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better not to bind here
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2023-04-24 14:54:22 +02:00 |
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Ahmet Inan
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eb6e002d52
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added Cauchy Reed Solomon erasure coding
Read more about the Cauchy matrix:
https://en.wikipedia.org/wiki/Cauchy_matrix
The Art of Computer Programming
Volume 1: Fundamental Algorithms
Donald E. Knuth - 1997
Paragraph 1.2.3: Sums and Products
Page 37, Cauchy's matrix:
$a_{ij} = \frac{1}{x_i + y_j}$
Page 38, Exercise 41:
$b_{ij} = \frac{\prod_{k=1}^{n}{(x_j + y_k)(x_k + y_i)}}{(x_j + y_i)\prod_{k \ne j}^{n}{(x_j - x_k)}\prod_{k \ne i}^{n}{(y_i - y_k)}}$
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2023-04-24 13:35:30 +02:00 |
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Ahmet Inan
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9774948cd3
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added reference implementation and exhaustive testing
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2023-04-20 14:04:32 +02:00 |
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Ahmet Inan
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476a346295
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use -O2 with -ffast-math and -ftree-vectorize
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2022-04-07 21:36:38 +02:00 |
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Ahmet Inan
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0e1a5a45e4
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the 2/3 LDPC code uses T=10 BCH code in DVB
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2021-07-22 09:24:45 +02:00 |
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Ahmet Inan
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d9b98653dd
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use short code and a larger list with fixed-point
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2021-07-13 13:45:06 +02:00 |
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Ahmet Inan
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a1764d4d83
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added CRC aided SCL example
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2021-07-13 12:15:57 +02:00 |
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Ahmet Inan
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631ec8beef
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use uint32_t for the frozen bits
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2021-07-13 10:50:06 +02:00 |
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Ahmet Inan
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cc1f412f5d
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added polar bit freezers, encoders and decoders
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2021-07-11 10:30:22 +02:00 |
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Ahmet Inan
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024ffa1d25
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use C++17 for new alignment support
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2021-07-10 23:34:09 +02:00 |
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Ahmet Inan
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369decd8c3
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added and used DVB 2/3 code as default
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2021-06-08 14:58:19 +02:00 |
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Ahmet Inan
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912c89a0b9
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added more examples and references
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2021-06-08 13:37:29 +02:00 |
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Ahmet Inan
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671b2f22ce
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relax range requirement for soft inputs to full range
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2020-08-07 08:13:08 +02:00 |
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Ahmet Inan
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811024f128
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added BCH(15, 5) T=3 example
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2020-08-06 20:39:01 +02:00 |
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Ahmet Inan
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34a21139c7
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added ordered statistics decoding
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2020-08-06 13:39:09 +02:00 |
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Ahmet Inan
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ea07a593d7
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added BCH(127, 64) T=10 example
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2020-07-31 10:10:38 +02:00 |
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Ahmet Inan
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451bc4e5cc
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added BCH(255, 131) T=18 example
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2020-07-28 15:41:45 +02:00 |
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Ahmet Inan
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6045870288
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added BCH(31, 16) T=3 for testing
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2020-06-15 07:33:21 +02:00 |
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Ahmet Inan
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b54be1c997
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moved constructor generator argument to template parameter
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2020-06-14 20:43:45 +02:00 |
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Ahmet Inan
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759ca4b896
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added tests for Simplex and Hadamard encoders
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2020-06-13 13:28:42 +02:00 |
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Ahmet Inan
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ae13fc7acc
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doubled loops
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2020-06-12 12:06:41 +02:00 |
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Ahmet Inan
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43c5d6a91a
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encoder and soft decoder for augmented Hadamard codes
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2020-06-11 23:11:31 +02:00 |
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Ahmet Inan
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77f27a8c5e
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made T a template parameter
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2020-06-10 19:53:10 +02:00 |
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Ahmet Inan
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f8b782033d
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print histogram of distances and verify T
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2020-06-10 18:32:52 +02:00 |
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Ahmet Inan
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fd0555a3e5
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added more examples
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2020-06-10 14:01:33 +02:00 |
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Ahmet Inan
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2be153ca67
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only point out decoder errors if decoder is sure
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2020-06-09 14:37:55 +02:00 |
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Ahmet Inan
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809ab3690b
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return -1 if unsure
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2020-06-09 14:36:19 +02:00 |
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Ahmet Inan
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05bd06ec0a
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also return codeword unmodulated
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2020-06-09 09:24:05 +02:00 |
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Ahmet Inan
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5cf0ff2297
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added soft Chase decoding for short BCH codes
gives about 1.5dB gain while only half the speed of hard decision.
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2020-06-08 18:22:54 +02:00 |
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Ahmet Inan
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130af67e08
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these codes are short ..
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2020-06-08 10:15:50 +02:00 |
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Ahmet Inan
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5d944ca7a9
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added encoder and syndrome decoder for short BCH codes
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2020-06-07 18:28:25 +02:00 |
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Ahmet Inan
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af29e0434a
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increased iterations
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2020-06-01 12:08:07 +02:00 |
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Ahmet Inan
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2adfe54c76
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added test for msg len 2
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2020-06-01 09:31:42 +02:00 |
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Ahmet Inan
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620466021b
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added encoder and soft decoder for simplex codes
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2020-05-31 17:43:29 +02:00 |
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Ahmet Inan
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e2b46aed76
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added test for the Maximum length sequence
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2020-05-29 12:37:23 +02:00 |
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Ahmet Inan
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0b37102383
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getting rid of obsolete version
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2019-10-01 22:17:04 +02:00 |
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Ahmet Inan
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95e471b966
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added normal 5/6 code table
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2019-09-12 17:39:05 +02:00 |
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Ahmet Inan
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67949bcb76
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renamed some variables and improved status output
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2018-12-19 09:52:24 +01:00 |
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Ahmet Inan
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b41799c84d
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added LDPC decoder version with fully computed LUT
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2018-12-16 09:42:02 +01:00 |
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Ahmet Inan
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5c77e514ae
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added DVB T2 table B.7
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2018-12-13 13:23:50 +01:00 |
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Ahmet Inan
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199a988def
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added LDPC encoder and layered decoder
lifted from my LDPC project:
https://github.com/xdsopl/LDPC
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2018-12-13 11:19:31 +01:00 |
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Ahmet Inan
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09945a18b5
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added example how to test with a cross-compiler
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2018-12-12 12:13:58 +01:00 |
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