A design of improved flexible-length S-random interleaver
A design of improved flexible-length S-random interleaver
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一种改进的灵活长度S随机交织器的设计
DOI：
10.1109/iccrd.2011.5763930
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Zhendong Chen
中科院分区：
文献类型：
--
作者：
Xiaowen Li;Zhendong Chen
针对Turbo编码系统中的存储优化问题，提出了一种新的可变长度S随机交织器的设计方法。该方法在每次增加交织器长度的迭代中，通过选择合适的位置和元素来改善交织器的扩频性能，从而构造出具有高扩频特性的S随机交织器。该方法只需存储一个长度较小的交织器即可得到任意长度的交织器，且时间复杂度较低。通过仿真发现，新的可变长度S随机交织器的性能并不比普通的S随机交织器差。
In this article, a new method to design the flexible-length S-random interleaver is proposed for storage optimization in a turbo coding system. In this method, the high-spread property s-random interleaver is constructed by selecting appropriate position and element that can improve spread property of interleaver in each iteration in which length of interleaver is increased. Using this method, interleavers with any length can be obtained just storing one interleaver with small length and its time complexity is low. Through the simulation, we find that the performance of new flexible-length S-random interleaver is not worse than that of ordinary S-random interleaver.