比特交织迭代译码系统的迭代控制
Iterative Control of Bit-Interleaved Coded Modulation with Iterative Decoding
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摘要: 利用迭代译码时的外部信息交换图特点，提出了一种非常简单有效的迭代控制策略。首先通过外部信息交换图分析得到一个有关信噪比的迭代次数矢量，其次系统根据估计信噪比选择对应值，从而实现迭代控制。该方案实现简单，同时也减少了系统延迟，便于分析系统性能。Abstract: A simple and efficient iterative control algorithm is proposed. An iterative degree vector about SNR is firstly derived by analysis of extrinsic information transfer chart, iterative control is then implemented by selecting the relevant value according to estimated SNR. Simple in realization and high in performance, this method can be utilized in performance analysis.
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