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105 commits

Author SHA1 Message Date
Ahmet Inan
fbd253aff4 prepare for Polarization-Adjusted Convolutional codes 2025-12-22 12:54:26 +01:00
Ahmet Inan
2f4d090a57 moved parity aided polar regression test to own file 2025-12-22 12:35:42 +01:00
Ahmet Inan
2e29eda8a2 added xorshift test 2025-06-14 09:40:45 +02:00
Ahmet Inan
270519aa79 simpler is better 2024-03-26 19:15:45 +01:00
Ahmet Inan
7f492e9d21 improved usability of the new erasure code 2024-03-26 18:10:29 +01:00
Ahmet Inan
35451540ca added prime field based Cauchy Reed Solomon erasure coding 2024-03-25 11:56:41 +01:00
Ahmet Inan
485f6afe42 moved TYPE checks to tests 2024-03-24 11:10:49 +01:00
Ahmet Inan
fbbc655589 added prime field arithmetic 2024-03-24 10:21:47 +01:00
Ahmet Inan
ba688ab23b use merge sort 2024-03-08 14:02:17 +01:00
Ahmet Inan
389fcc3bd8 added comp argument and test for stability 2024-03-08 13:00:40 +01:00
Ahmet Inan
2d5e782135 made random seeding optional 2024-03-08 10:08:21 +01:00
Ahmet Inan
d319189d7a added merge sort 2024-03-08 09:53:28 +01:00
Ahmet Inan
957eb6f784 use the new sorting functions 2024-03-07 22:04:09 +01:00
Ahmet Inan
524571e6fb added insertion sort and regression test 2024-03-07 21:21:32 +01:00
Ahmet Inan
6372a965cf renamed sort.hh to simd_sort.hh 2024-03-07 18:31:52 +01:00
Ahmet Inan
ae0a749d08 added insertion sort and regression test 2024-03-05 14:27:15 +01:00
Ahmet Inan
7d71b00d59 print ambiguity errors 2024-02-28 11:31:34 +01:00
Ahmet Inan
332eb9caf7 removed SCALE constant 2024-02-23 16:48:50 +01:00
Ahmet Inan
350ec59037 use a higher order but less loops 2024-02-22 11:15:44 +01:00
Ahmet Inan
019adfa609 make gnu compiler happy 2024-02-21 07:54:44 +01:00
Ahmet Inan
7fb1d671f4 base list size on constant L 2024-02-13 12:35:49 +01:00
Ahmet Inan
7e589c85ef keep ranges symmetric 2024-02-10 19:46:25 +01:00
Ahmet Inan
b146d9739a print frame error rate 2024-02-10 10:51:29 +01:00
Ahmet Inan
73ba005015 candidates are now sorted 2024-02-09 13:36:25 +01:00
Ahmet Inan
4b4ee7ae7a print frame error rate 2024-02-09 09:20:32 +01:00
Ahmet Inan
33052aae8d experimenting with list decoding 2024-02-03 13:59:19 +01:00
Ahmet Inan
f3d3afbe01 align parity bits accordingly 
if we want to use a crc aid at the end, we should move the start of the
first parity bit as far as possible to the front, otherwise we want the
last bit to be a parity bit
 2024-01-21 11:07:52 +01:00
Ahmet Inan
0bb0eaf5a9 added parity check aided SCL decoding 2024-01-20 15:33:00 +01:00
Ahmet Inan
47b520638b make a quicker, coarser test 2023-07-25 11:50:53 +02:00
Ahmet Inan
01878fc81a use 3/10-rate sequence from TwoInt project 2023-07-14 10:29:39 +02:00
Ahmet Inan
cb7271c85f added polar code reliability sequence constructor 2023-07-07 10:24:32 +02:00
Ahmet Inan
b9d074adcf set frozen bits from a reliability sequence 2023-06-18 09:41:46 +02:00
Ahmet Inan
272440d749 better not to be clever here 2023-06-07 12:27:01 +02:00
Ahmet Inan
ebb989ce50 wait for more errors to get a better estimation 2023-06-01 07:28:17 +02:00
Ahmet Inan
8370e6a51c added SIMD acceleration for GF(2^8) and GF(2^16) 2023-05-09 16:04:32 +02:00
Ahmet Inan
078ae40d83 merged encoder and decoder 2023-05-08 08:12:17 +02:00
Ahmet Inan
26e83f13d6 optimize for Raspberry Pi 4 2023-05-05 14:20:00 +02:00
Ahmet Inan
986059694e added support for aarch64 
__ARM_NEON__ is not defined on gcc anymore ..
 2023-05-05 08:06:59 +02:00
Ahmet Inan
f2ebaf4504 allow user to decode block by block 2023-04-28 10:55:46 +02:00
Ahmet Inan
daa622d1eb show some numbers 2023-04-24 15:44:19 +02:00
Ahmet Inan
bb527dd888 better not to bind here 2023-04-24 14:54:22 +02:00
Ahmet Inan
eb6e002d52 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:
$b_{ij} = \frac{\prod_{k=1}^{n}{(x_j + y_k)(x_k + y_i)}}{(x_j + y_i)\prod_{k \ne j}^{n}{(x_j - x_k)}\prod_{k \ne i}^{n}{(y_i - y_k)}}$
 2023-04-24 13:35:30 +02:00
Ahmet Inan
9774948cd3 added reference implementation and exhaustive testing 2023-04-20 14:04:32 +02:00
Ahmet Inan
476a346295 use -O2 with -ffast-math and -ftree-vectorize 2022-04-07 21:36:38 +02:00
Ahmet Inan
0e1a5a45e4 the 2/3 LDPC code uses T=10 BCH code in DVB 2021-07-22 09:24:45 +02:00
Ahmet Inan
d9b98653dd use short code and a larger list with fixed-point 2021-07-13 13:45:06 +02:00
Ahmet Inan
a1764d4d83 added CRC aided SCL example 2021-07-13 12:15:57 +02:00
Ahmet Inan
631ec8beef use uint32_t for the frozen bits 2021-07-13 10:50:06 +02:00
Ahmet Inan
cc1f412f5d added polar bit freezers, encoders and decoders 2021-07-11 10:30:22 +02:00
Ahmet Inan
024ffa1d25 use C++17 for new alignment support 2021-07-10 23:34:09 +02:00