mirror of
https://github.com/aicodix/code.git
synced 2026-04-27 14:30:36 +00:00
added parity check aided SCL decoding
This commit is contained in:
Ahmet Inan
parent
37ba4b64ef
commit
0bb0eaf5a9
2 changed files with 402 additions and 2 deletions
386
polar_parity_aided.hh
Normal file
386
polar_parity_aided.hh
Normal file
|
|
@ -0,0 +1,386 @@
|
|||
/*
|
||||
Parity aided successive cancellation list decoding of polar codes
|
||||
|
||||
Copyright 2023 Ahmet Inan <inan@aicodix.de>
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <algorithm>
|
||||
#include "polar_helper.hh"
|
||||
|
||||
namespace CODE {
|
||||
|
||||
template <typename TYPE>
|
||||
class PolarParityEncoder
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
static bool get(const uint32_t *bits, int idx)
|
||||
{
|
||||
return (bits[idx/32] >> (idx%32)) & 1;
|
||||
}
|
||||
public:
|
||||
void operator()(TYPE *codeword, const TYPE *message, const uint32_t *frozen, int level, int stride)
|
||||
{
|
||||
int length = 1 << level;
|
||||
int count = stride;
|
||||
TYPE parity = PH::one();
|
||||
for (int i = 0; i < length; i += 2) {
|
||||
TYPE msg0, msg1;
|
||||
if (get(frozen, i)) {
|
||||
msg0 = PH::one();
|
||||
} else if (count) {
|
||||
msg0 = *message++;
|
||||
parity = PH::qmul(parity, msg0);
|
||||
--count;
|
||||
} else {
|
||||
msg0 = parity;
|
||||
parity = PH::one();
|
||||
count = stride;
|
||||
}
|
||||
if (get(frozen, i + 1)) {
|
||||
msg1 = PH::one();
|
||||
} else if (count) {
|
||||
msg1 = *message++;
|
||||
parity = PH::qmul(parity, msg1);
|
||||
--count;
|
||||
} else {
|
||||
msg1 = parity;
|
||||
parity = PH::one();
|
||||
count = stride;
|
||||
}
|
||||
codeword[i] = PH::qmul(msg0, msg1);
|
||||
codeword[i+1] = msg1;
|
||||
}
|
||||
for (int h = 2; h < length; h *= 2)
|
||||
for (int i = 0; i < length; i += 2 * h)
|
||||
for (int j = i; j < i + h; ++j)
|
||||
codeword[j] = PH::qmul(codeword[j], codeword[j+h]);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE, int M>
|
||||
struct PolarParityNode
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int N = 1 << M;
|
||||
static MAP rate0(PATH *metric, TYPE *hard, TYPE *soft)
|
||||
{
|
||||
for (int i = 0; i < N; ++i)
|
||||
hard[i] = PH::one();
|
||||
for (int i = 0; i < N; ++i)
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
if (soft[i+N].v[k] < 0)
|
||||
metric[k] -= soft[i+N].v[k];
|
||||
MAP map;
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
map.v[k] = k;
|
||||
return map;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE>
|
||||
struct PolarParityNode<TYPE, 0>
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static MAP rate0(PATH *metric, TYPE *hard, TYPE *soft)
|
||||
{
|
||||
*hard = PH::one();
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
if (soft[1].v[k] < 0)
|
||||
metric[k] -= soft[1].v[k];
|
||||
MAP map;
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
map.v[k] = k;
|
||||
return map;
|
||||
}
|
||||
static MAP rate1(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
TYPE sft = soft[1];
|
||||
PATH fork[2*TYPE::SIZE];
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
fork[k] = fork[k+TYPE::SIZE] = metric[k];
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
if (sft.v[k] < 0)
|
||||
fork[k] -= sft.v[k];
|
||||
else
|
||||
fork[k+TYPE::SIZE] += sft.v[k];
|
||||
int perm[2*TYPE::SIZE];
|
||||
for (int k = 0; k < 2*TYPE::SIZE; ++k)
|
||||
perm[k] = k;
|
||||
std::nth_element(perm, perm+TYPE::SIZE, perm+2*TYPE::SIZE, [fork](int a, int b){ return fork[a] < fork[b]; });
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
metric[k] = fork[perm[k]];
|
||||
MAP map;
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
map.v[k] = perm[k] % TYPE::SIZE;
|
||||
TYPE hrd;
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
hrd.v[k] = perm[k] < TYPE::SIZE ? 1 : -1;
|
||||
if (*count) {
|
||||
message[*index] = hrd;
|
||||
*parity = PH::qmul(vshuf(*parity, map), hrd);
|
||||
maps[*index] = map;
|
||||
++*index;
|
||||
--*count;
|
||||
} else {
|
||||
message[*index-1] = vshuf(message[*index-1], map);
|
||||
maps[*index-1] = vshuf(maps[*index-1], map);
|
||||
TYPE chk = vshuf(*parity, map);
|
||||
for (int k = 0; k < TYPE::SIZE; ++k)
|
||||
if (chk.v[k] != hrd.v[k])
|
||||
metric[k] = 1000;
|
||||
*parity = PH::one();
|
||||
*count = stride;
|
||||
}
|
||||
*hard = hrd;
|
||||
return map;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE, int M>
|
||||
struct PolarParityTree
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int N = 1 << M;
|
||||
static MAP decode(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, const uint32_t *frozen, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::prod(soft[i+N], soft[i+N/2+N]);
|
||||
MAP lmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard, soft, frozen, parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::madd(hard[i], vshuf(soft[i+N], lmap), vshuf(soft[i+N/2+N], lmap));
|
||||
MAP rmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard+N/2, soft, frozen+N/2/32, parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
hard[i] = PH::qmul(vshuf(hard[i], rmap), hard[i+N/2]);
|
||||
return vshuf(lmap, rmap);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE>
|
||||
struct PolarParityTree<TYPE, 6>
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int M = 6;
|
||||
static const int N = 1 << M;
|
||||
static MAP decode(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, const uint32_t *frozen, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::prod(soft[i+N], soft[i+N/2+N]);
|
||||
MAP lmap, rmap;
|
||||
if (frozen[0] == 0xffffffff)
|
||||
lmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard, soft);
|
||||
else
|
||||
lmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard, soft, frozen[0], parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::madd(hard[i], vshuf(soft[i+N], lmap), vshuf(soft[i+N/2+N], lmap));
|
||||
if (frozen[1] == 0xffffffff)
|
||||
rmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard+N/2, soft);
|
||||
else
|
||||
rmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard+N/2, soft, frozen[1], parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
hard[i] = PH::qmul(vshuf(hard[i], rmap), hard[i+N/2]);
|
||||
return vshuf(lmap, rmap);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE>
|
||||
struct PolarParityTree<TYPE, 5>
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int M = 5;
|
||||
static const int N = 1 << M;
|
||||
static MAP decode(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, uint32_t frozen, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::prod(soft[i+N], soft[i+N/2+N]);
|
||||
MAP lmap, rmap;
|
||||
if ((frozen & ((1<<(1<<(M-1)))-1)) == ((1<<(1<<(M-1)))-1))
|
||||
lmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard, soft);
|
||||
else
|
||||
lmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard, soft, frozen & ((1<<(1<<(M-1)))-1), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::madd(hard[i], vshuf(soft[i+N], lmap), vshuf(soft[i+N/2+N], lmap));
|
||||
if (frozen >> (N/2) == ((1<<(1<<(M-1)))-1))
|
||||
rmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard+N/2, soft);
|
||||
else
|
||||
rmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard+N/2, soft, frozen >> (N/2), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
hard[i] = PH::qmul(vshuf(hard[i], rmap), hard[i+N/2]);
|
||||
return vshuf(lmap, rmap);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE>
|
||||
struct PolarParityTree<TYPE, 4>
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int M = 4;
|
||||
static const int N = 1 << M;
|
||||
static MAP decode(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, uint32_t frozen, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::prod(soft[i+N], soft[i+N/2+N]);
|
||||
MAP lmap, rmap;
|
||||
if ((frozen & ((1<<(1<<(M-1)))-1)) == ((1<<(1<<(M-1)))-1))
|
||||
lmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard, soft);
|
||||
else
|
||||
lmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard, soft, frozen & ((1<<(1<<(M-1)))-1), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::madd(hard[i], vshuf(soft[i+N], lmap), vshuf(soft[i+N/2+N], lmap));
|
||||
if (frozen >> (N/2) == ((1<<(1<<(M-1)))-1))
|
||||
rmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard+N/2, soft);
|
||||
else
|
||||
rmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard+N/2, soft, frozen >> (N/2), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
hard[i] = PH::qmul(vshuf(hard[i], rmap), hard[i+N/2]);
|
||||
return vshuf(lmap, rmap);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE>
|
||||
struct PolarParityTree<TYPE, 3>
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int M = 3;
|
||||
static const int N = 1 << M;
|
||||
static MAP decode(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, uint32_t frozen, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::prod(soft[i+N], soft[i+N/2+N]);
|
||||
MAP lmap, rmap;
|
||||
if ((frozen & ((1<<(1<<(M-1)))-1)) == ((1<<(1<<(M-1)))-1))
|
||||
lmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard, soft);
|
||||
else
|
||||
lmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard, soft, frozen & ((1<<(1<<(M-1)))-1), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::madd(hard[i], vshuf(soft[i+N], lmap), vshuf(soft[i+N/2+N], lmap));
|
||||
if (frozen >> (N/2) == ((1<<(1<<(M-1)))-1))
|
||||
rmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard+N/2, soft);
|
||||
else
|
||||
rmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard+N/2, soft, frozen >> (N/2), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
hard[i] = PH::qmul(vshuf(hard[i], rmap), hard[i+N/2]);
|
||||
return vshuf(lmap, rmap);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE>
|
||||
struct PolarParityTree<TYPE, 2>
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int M = 2;
|
||||
static const int N = 1 << M;
|
||||
static MAP decode(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, uint32_t frozen, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::prod(soft[i+N], soft[i+N/2+N]);
|
||||
MAP lmap, rmap;
|
||||
if ((frozen & ((1<<(1<<(M-1)))-1)) == ((1<<(1<<(M-1)))-1))
|
||||
lmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard, soft);
|
||||
else
|
||||
lmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard, soft, frozen & ((1<<(1<<(M-1)))-1), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
soft[i+N/2] = PH::madd(hard[i], vshuf(soft[i+N], lmap), vshuf(soft[i+N/2+N], lmap));
|
||||
if (frozen >> (N/2) == ((1<<(1<<(M-1)))-1))
|
||||
rmap = PolarParityNode<TYPE, M-1>::rate0(metric, hard+N/2, soft);
|
||||
else
|
||||
rmap = PolarParityTree<TYPE, M-1>::decode(metric, message, maps, index, hard+N/2, soft, frozen >> (N/2), parity, count, stride);
|
||||
for (int i = 0; i < N/2; ++i)
|
||||
hard[i] = PH::qmul(vshuf(hard[i], rmap), hard[i+N/2]);
|
||||
return vshuf(lmap, rmap);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE>
|
||||
struct PolarParityTree<TYPE, 1>
|
||||
{
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static MAP decode(PATH *metric, TYPE *message, MAP *maps, int *index, TYPE *hard, TYPE *soft, uint32_t frozen, TYPE *parity, int *count, int stride)
|
||||
{
|
||||
soft[1] = PH::prod(soft[2], soft[3]);
|
||||
MAP lmap, rmap;
|
||||
if (frozen & 1)
|
||||
lmap = PolarParityNode<TYPE, 0>::rate0(metric, hard, soft);
|
||||
else
|
||||
lmap = PolarParityNode<TYPE, 0>::rate1(metric, message, maps, index, hard, soft, parity, count, stride);
|
||||
soft[1] = PH::madd(hard[0], vshuf(soft[2], lmap), vshuf(soft[3], lmap));
|
||||
if (frozen >> 1)
|
||||
rmap = PolarParityNode<TYPE, 0>::rate0(metric, hard+1, soft);
|
||||
else
|
||||
rmap = PolarParityNode<TYPE, 0>::rate1(metric, message, maps, index, hard+1, soft, parity, count, stride);
|
||||
hard[0] = PH::qmul(vshuf(hard[0], rmap), hard[1]);
|
||||
return vshuf(lmap, rmap);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename TYPE, int MAX_M>
|
||||
class PolarParityDecoder
|
||||
{
|
||||
static_assert(MAX_M >= 5 && MAX_M <= 16);
|
||||
typedef PolarHelper<TYPE> PH;
|
||||
typedef typename TYPE::value_type VALUE;
|
||||
typedef typename PH::PATH PATH;
|
||||
typedef typename PH::MAP MAP;
|
||||
static const int MAX_N = 1 << MAX_M;
|
||||
TYPE soft[2*MAX_N];
|
||||
TYPE hard[MAX_N];
|
||||
MAP maps[MAX_N];
|
||||
public:
|
||||
void operator()(PATH *metric, TYPE *message, const VALUE *codeword, const uint32_t *frozen, int level, int stride)
|
||||
{
|
||||
assert(level <= MAX_M);
|
||||
int index = 0;
|
||||
metric[0] = 0;
|
||||
for (int k = 1; k < TYPE::SIZE; ++k)
|
||||
metric[k] = 1000;
|
||||
int length = 1 << level;
|
||||
for (int i = 0; i < length; ++i)
|
||||
soft[length+i] = vdup<TYPE>(codeword[i]);
|
||||
TYPE parity = PH::one();
|
||||
int count = stride;
|
||||
|
||||
switch (level) {
|
||||
case 5: PolarParityTree<TYPE, 5>::decode(metric, message, maps, &index, hard, soft, *frozen, &parity, &count, stride); break;
|
||||
case 6: PolarParityTree<TYPE, 6>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 7: PolarParityTree<TYPE, 7>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 8: PolarParityTree<TYPE, 8>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 9: PolarParityTree<TYPE, 9>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 10: PolarParityTree<TYPE, 10>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 11: PolarParityTree<TYPE, 11>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 12: PolarParityTree<TYPE, 12>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 13: PolarParityTree<TYPE, 13>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 14: PolarParityTree<TYPE, 14>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 15: PolarParityTree<TYPE, 15>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
case 16: PolarParityTree<TYPE, 16>::decode(metric, message, maps, &index, hard, soft, frozen, &parity, &count, stride); break;
|
||||
default: assert(false);
|
||||
}
|
||||
|
||||
MAP acc = maps[index-1];
|
||||
for (int i = index-2; i >= 0; --i) {
|
||||
message[i] = vshuf(message[i], acc);
|
||||
acc = vshuf(maps[i], acc);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
|
|
@ -16,6 +16,7 @@ Copyright 2020 Ahmet Inan <inan@aicodix.de>
|
|||
#include "polar_list_decoder.hh"
|
||||
#include "polar_encoder.hh"
|
||||
#include "polar_sequence.hh"
|
||||
#include "polar_parity_aided.hh"
|
||||
#include "crc.hh"
|
||||
#include "sequence.h"
|
||||
|
||||
|
|
@ -28,10 +29,13 @@ int main()
|
|||
{
|
||||
const int M = 10;
|
||||
const int N = 1 << M;
|
||||
const bool systematic = true;
|
||||
const bool systematic = false;
|
||||
const bool crc_aided = true;
|
||||
const bool par_aided = true;
|
||||
static_assert(!par_aided || !systematic, "systematic and parity aided are mutually exclusive");
|
||||
CODE::CRC<uint32_t> crc(0xD419CC15);
|
||||
const int C = 32;
|
||||
const int S = 32;
|
||||
#if 1
|
||||
typedef int8_t code_type;
|
||||
double SCALE = 2;
|
||||
|
|
@ -79,12 +83,16 @@ int main()
|
|||
frozen[i] = 0;
|
||||
for (int i = 0; i < N - K; ++i)
|
||||
frozen[reliability_sequence[i]/32] |= 1 << (reliability_sequence[i]%32);
|
||||
int P = K / (S + 1);
|
||||
if (par_aided)
|
||||
K -= P;
|
||||
std::cerr << "Polar(" << N << ", " << K << ")" << std::endl;
|
||||
auto message = new code_type[K];
|
||||
auto decoded = new simd_type[K];
|
||||
CODE::PolarHelper<simd_type>::PATH metric[SIMD_WIDTH];
|
||||
std::cerr << "sizeof(PolarListDecoder<simd_type, M>) = " << sizeof(CODE::PolarListDecoder<simd_type, M>) << std::endl;
|
||||
auto decode = new CODE::PolarListDecoder<simd_type, M>;
|
||||
auto par_dec = new CODE::PolarParityDecoder<simd_type, M>;
|
||||
|
||||
auto orig = new code_type[N];
|
||||
auto noisy = new code_type[N];
|
||||
|
|
@ -132,6 +140,9 @@ int main()
|
|||
for (int i = 0, j = 0; i < N; ++i)
|
||||
if (!get_bit(frozen, i))
|
||||
assert(codeword[i] == message[j++]);
|
||||
} else if (par_aided) {
|
||||
CODE::PolarParityEncoder<code_type> encode;
|
||||
encode(codeword, message, frozen, M, S);
|
||||
} else {
|
||||
CODE::PolarEncoder<code_type> encode;
|
||||
encode(codeword, message, frozen, M);
|
||||
|
|
@ -157,7 +168,10 @@ int main()
|
|||
noisy[i] = codeword[i];
|
||||
|
||||
auto start = std::chrono::system_clock::now();
|
||||
(*decode)(metric, decoded, codeword, frozen, M);
|
||||
if (par_aided)
|
||||
(*par_dec)(metric, decoded, codeword, frozen, M, S);
|
||||
else
|
||||
(*decode)(metric, decoded, codeword, frozen, M);
|
||||
auto end = std::chrono::system_clock::now();
|
||||
auto usec = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
|
||||
double mbs = (double)K / usec.count();
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue