The turbo decoding algorithm and its phase trajectories
The turbo decoding algorithm and its phase trajectories
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Turbo解码算法及其相位轨迹
DOI：
10.1109/isit.2000.866614
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
A. Vardy
中科院分区：
文献类型：
--
作者：
D. Agrawal;A. Vardy
我们分析涡轮解码算法的相轨迹是信噪比（SNR）的函数。我们不仅在渐近高的SNR上，而且在渐近低的SNR上证明了固定点的存在。实用SNR的固定点在经验上分为两个类别：柔和的固定点通常会导致许多错误的决定和明确的固定点，通常对应于正确的决策。涡轮解码性能曲线中的瀑布区域的特征是从收敛到优柔寡断的固定点到收敛到明确的固定点的过渡区域。
We analyze phase trajectories of the turbo decoding algorithm as a function of the signal-to-noise ratio (SNR). We prove the existence of fixed points not only at asymptotically high SNRs but also at asymptotically low SNRs. Fixed points at practical SNRs are empirically divided into two classes: indecisive fixed points which usually lead to numerous erroneous decisions and unequivocal fixed points which usually correspond to correct decisions. The waterfall region in the performance curve of turbo decoding is characterized as the region of transition from convergence to indecisive fixed points to convergence to unequivocal fixed points.
DOI：
10.2307/3620310
发表时间：
1989-10
期刊：
--
影响因子：
--
作者：
S. Wiggins
通讯作者：
S. Wiggins
影响因子：
2.5
作者：
Richardson, TJ;Urbanke, RL
通讯作者：
Urbanke, RL