发表机构
National Taiwan Ocean University（国立台湾海洋大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
HARS通过结合局部可靠性和初始综合征参数映射，实现LDPC比特翻转译码，显著降低BER和迭代次数，并在FPGA上达到高吞吐量。
AI 中文摘要
HARS（混合自适应可靠性感知与综合征感知）是一种比特翻转译码器，它将局部信道可靠性与基于初始综合征的参数选择相结合。有界校验可靠性会修改校验权重，而初始综合征权重则为每个帧选择基础权重、可靠性系数、阈值衰减因子和扰动幅度。在初始化时计算这些量支持同步多比特更新，并采用简单的迭代数据通路。对于二进制输入加性高斯白噪声信道上的二分之一码率PEGReg和WiMAX码，HARS相对于校准的SM-NGDBF基线降低了误比特率（BER）和平均迭代次数。在3.25 dB处，PEGReg的BER约为比较值的六分之一；在2.75 dB处，WiMAX的BER降低了59%。一个七小数位FPGA实现将132个变量节点通道共享给四个帧上下文。预计算的校验权重、编码的阈值状态和并行扰动生成支持持续译码期间每时钟一个分组。在60 MHz的XC7A200T上，对于预加载的128帧批次且接收器就绪，测得编码吞吐量在2.50 dB时为49.7 Mb/s，在4.00 dB时为361.9 Mb/s，包括初始化和输出传输。
英文摘要
HARS (Hybrid Adaptive Reliability-Aware and Syndrome-Aware) is a bit-flipping decoder that combines local channel reliability with parameter selection from the initial syndrome. A bounded check reliability modifies the parity-check weight, while the initial syndrome weight selects the base weight, reliability coefficient, threshold decay factor, and perturbation amplitude for each frame. Computing these quantities at initialization supports synchronous multi-bit updates with a simple iterative datapath. For rate-one-half PEGReg and WiMAX codes over the binary-input additive white Gaussian noise channel, HARS reduces both bit-error rate (BER) and mean iteration count relative to a calibrated SM-NGDBF baseline. The PEGReg BER at 3.25 dB is approximately one-sixth of the comparison value; the WiMAX BER at 2.75 dB is reduced by 59%. A seven-fractional-bit FPGA implementation shares 132 variable-node lanes among four frame contexts. Precomputed check weights, encoded threshold states, and parallel perturbation generation support one group per clock during sustained decoding. On an XC7A200T at 60 MHz, for preloaded 128-frame batches with a ready receiver, measured coded throughputs are 49.7 Mb/s at 2.50 dB and 361.9 Mb/s at 4.00 dB, including initialization and output transfers.
