5G-SIMD-LDPC

• Vesion: 3.1
• Date: 2019.03.27
• Author: Xu Yi

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File Specification

5G-SIMD-LDPC
│   README.md
│   LICENSE
│
└───inc
│   │   bit.h                       // Data pack and unpack head file
│   │   crc.h                       // CRC head file
│   │   simd_bit.h                  // Data pack and unpack with SIMD head file
│   │   simd_ldpc.h                 // SIMD LDPC head file
│   │   thread_pool.h               // Thread pool head file
│   
└───src
│   │   thread_pool.c               // Thread pool source file
│
└───lib
│   │   libsimd_5gfec.a             // Static library for x86_64 Linux
│   
└───example
    └───test_multicore              // example for multi-core test
    │   │   test_multicore.c
    │   │   Makefile
    │    
    └───test_simd                   // example for different SIMD instruction sets
    │   │   test_simd.c
    │   │   Makefile
    │    
    └───test_stop                   // example for early stopping strategy
        │   test_stip.c
        │   Makefile

Build and Execution Instructions

Build:

cd example/[example name]/

make

Execution:

./main

Clean:

make clean

Decoder Performance

Environment:

• OS: Ubuntu 16.04 xenial
• Kernel: x86_64 Linux 4.4.0-21-generic
• CPU: 4x Intel Xeon Gold 6154 CPU @ 3.001GHz
• ICC: 18.0.2

Simulation Parameter:

• Base Graph: 5GNR Base Graph 1(i_LS = 2)
• Code Block Length: 8448
• Code Rate: 5/6

Result:

SIMD	Throughput	Code Block Latency
SSE4.1	62.34Mbps	135.52μs
AVX2	130.23Mbps	64.87μs
AVX512	223.29Mbps	37.83μs