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Commit 46153c59b2b8017e3ca249e2f4e6dc62d326c2fb

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Parents : c5940d0
Author : Ahmet Inan <inan@aicodix.de>
Date : 2025-12-28T10:15:55+01:00

renamed and updated Bhattacharyya code construction

Changes

5 files changed, 12 insertions(+), 12 deletions(-)

M polar_sequence.hh +4 -4
M tests/pac_list_regression_test.cc +2 -2
M tests/polar_list_regression_test.cc +2 -2
M tests/polar_parity_regression_test.cc +2 -2
M tests/polar_regression_test.cc +2 -2

Diff

diff --git a/polar_sequence.hh b/polar_sequence.hh
index 511129d..90a3096 100644
--- a/polar_sequence.hh
+++ b/polar_sequence.hh
@@ -6,12 +6,12 @@ Copyright 2023 Ahmet Inan <inan@aicodix.de>
#pragma once
-#include <algorithm>
+#include "sort.hh"
namespace CODE {
template <int MAX_M>
-class PolarSeqConst0
+class BhattacharyyaSequence
{
void compute(double pe, int i, int h)
{
@@ -23,7 +23,7 @@ class PolarSeqConst0
}
}
double prob[1<<MAX_M];
- int index[1<<MAX_M];
+ MergeSort<int, 1<<MAX_M> sort;
public:
void operator()(int *sequence, int level, double erasure_probability = std::exp(-1.))
{
@@ -32,7 +32,7 @@ public:
compute(erasure_probability, 0, length / 2);
for (int i = 0; i < length; ++i)
sequence[i] = i;
- std::sort(sequence, sequence+length, [this](int a, int b){ return prob[a] > prob[b]; });
+ sort(sequence, length, [this](int a, int b){ return prob[a] > prob[b]; });
}
};

diff --git a/tests/pac_list_regression_test.cc b/tests/pac_list_regression_test.cc
index 8fe7b56..be4e209 100644
--- a/tests/pac_list_regression_test.cc
+++ b/tests/pac_list_regression_test.cc
@@ -54,8 +54,8 @@ int main()
double design_SNR = 10 * std::log10(-std::log(erasure_probability));
std::cerr << "design SNR: " << design_SNR << std::endl;
if (1) {
- auto construct = new CODE::PolarSeqConst0<M>;
- std::cerr << "sizeof(PolarSeqConst0<M>) = " << sizeof(CODE::PolarSeqConst0<M>) << std::endl;
+ auto construct = new CODE::BhattacharyyaSequence<M>;
+ std::cerr << "sizeof(BhattacharyyaSequence<M>) = " << sizeof(CODE::BhattacharyyaSequence<M>) << std::endl;
double better_SNR = design_SNR + 1.59175;
std::cerr << "better SNR: " << better_SNR << std::endl;
double probability = std::exp(-pow(10.0, better_SNR / 10));

diff --git a/tests/polar_list_regression_test.cc b/tests/polar_list_regression_test.cc
index 95437c3..e1d9c72 100644
--- a/tests/polar_list_regression_test.cc
+++ b/tests/polar_list_regression_test.cc
@@ -56,8 +56,8 @@ int main()
double design_SNR = 10 * std::log10(-std::log(erasure_probability));
std::cerr << "design SNR: " << design_SNR << std::endl;
if (1) {
- auto construct = new CODE::PolarSeqConst0<M>;
- std::cerr << "sizeof(PolarSeqConst0<M>) = " << sizeof(CODE::PolarSeqConst0<M>) << std::endl;
+ auto construct = new CODE::BhattacharyyaSequence<M>;
+ std::cerr << "sizeof(BhattacharyyaSequence<M>) = " << sizeof(CODE::BhattacharyyaSequence<M>) << std::endl;
double better_SNR = design_SNR + 1.59175;
std::cerr << "better SNR: " << better_SNR << std::endl;
double probability = std::exp(-pow(10.0, better_SNR / 10));

diff --git a/tests/polar_parity_regression_test.cc b/tests/polar_parity_regression_test.cc
index e4a22a3..d02ebb1 100644
--- a/tests/polar_parity_regression_test.cc
+++ b/tests/polar_parity_regression_test.cc
@@ -54,8 +54,8 @@ int main()
double design_SNR = 10 * std::log10(-std::log(erasure_probability));
std::cerr << "design SNR: " << design_SNR << std::endl;
if (1) {
- auto construct = new CODE::PolarSeqConst0<M>;
- std::cerr << "sizeof(PolarSeqConst0<M>) = " << sizeof(CODE::PolarSeqConst0<M>) << std::endl;
+ auto construct = new CODE::BhattacharyyaSequence<M>;
+ std::cerr << "sizeof(BhattacharyyaSequence<M>) = " << sizeof(CODE::BhattacharyyaSequence<M>) << std::endl;
double better_SNR = design_SNR + 1.59175;
std::cerr << "better SNR: " << better_SNR << std::endl;
double probability = std::exp(-pow(10.0, better_SNR / 10));

diff --git a/tests/polar_regression_test.cc b/tests/polar_regression_test.cc
index 3e1dafa..c006bec 100644
--- a/tests/polar_regression_test.cc
+++ b/tests/polar_regression_test.cc
@@ -56,8 +56,8 @@ int main()
delete freeze;
} else {
auto sequence = new int[N];
- auto construct = new CODE::PolarSeqConst0<M>;
- std::cerr << "sizeof(PolarSeqConst0<M>) = " << sizeof(CODE::PolarSeqConst0<M>) << std::endl;
+ auto construct = new CODE::BhattacharyyaSequence<M>;
+ std::cerr << "sizeof(BhattacharyyaSequence<M>) = " << sizeof(CODE::BhattacharyyaSequence<M>) << std::endl;
(*construct)(sequence, M, probability);
delete construct;
for (int i = 0; i < N / 32; ++i)

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