Design of Convergence-Optimized Non-binary LDPC Codes over Binary Erasure Channel

综合征自适应增益控制用于量子低密度奇偶校验码的Min-Sum解码

Syndrome Adaptive Gain Control for Min-Sum Decoding of Quantum LDPC Codes

本文提出一种自适应增益Min-Sum解码器，用于量子低密度奇偶校验码，通过动态调整消息增益提升解码性能，无需预先优化。

Design of Low Complexity Non-binary LDPC Codes with an Approximated Performance-Complexity Tradeoff

By presenting an approximated performance-complexity tradeoff (PCT) algorithm,a low-complexity non-binary low density parity check (LDPC) code over q-ary-input symmetric-output channel is designed in this manuscript which converges faster than the threshold-optimized non-binary LDPC codes in the low error rate regime. We examine our algorithm by both hard and soft decision decoders.Moreover, simulation shows that the approximated PCT algorithm has accelerated the convergence process by 30% regarding the number of the decoding iterations.

用于IRIG-106波形的基于随机删余的高谱效LDPC码

Spectrally Efficient LDPC Codes For IRIG-106 Waveforms via Random Puncturing

本文针对IRIG-106标准下的LDPC码，研究随机删余对其频谱效率的提升作用，仿真验证了为ARTM CPM设计的LDPC码经删余后仍具备稳健解码性能。

Comparison of Windowed-Decoder Configurations for Spatially Coupled LDPC Codes Under Equal-Complexity Constraints

Spatially Coupled Low-Density Parity-Check (SC-LDPC) codes offer excellent decoding performance and can be elegantly decoded with a Windowed Decoder (WD). We determine an efficient WD configuration with low control overhead. For fair comparisons, we normalize all configurations to the same maximal computational complexity, which is an important measure of the decoding effort in packet-based data communication systems. We determine an optimized configuration from a joint evaluation of the window size, the window update strategy, and parity check-based Early Termination (ET). Firstly, we use a v…

Analysis and Design of Cost-Effective, High-Throughput LDPC Decoders

This paper introduces a new approach to cost-effective, high-throughput hardware designs for Low Density Parity Check (LDPC) decoders. The proposed approach, called Non-Surjective Finite Alphabet Iterative Decoders (NS-FAIDs), exploits the robustness of message-passing LDPC decoders to inaccuracies in the calculation of exchanged messages, and it is shown to provide a unified framework for several designs previously proposed in the literature. NS-FAIDs are optimized by density evolution for regular and irregular LDPC codes, and are shown to provide different trade-offs between hardware complex…