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    Prunable S-random block interleaver method and corresponding interleaver
    2.
    发明公开
    Prunable S-random block interleaver method and corresponding interleaver 有权
    Entfernbares Spreiz-Zufall- Blockverschachtellungsverfahren sowie entsprechender Verschachteler

    公开(公告)号：EP1257064A1

    公开(公告)日：2002-11-13

    申请号：EP01111406.3

    申请日：2001-05-10

    Applicant: STMicroelectronics S.r.l.

    Inventor： Ferrari, Marco, c/o CNR-CSTS, Dip. Elettronica ,  Siti, Massimiliano ,  Valle, Stefano ,  Osnato, Fabio ,  Scalise, Fabio

    IPC: H03M13/27 ,  H03M13/00 ,  H03M13/29

    CPC classification number: H03M13/2957 ,  H03M13/2746 ,  H03M13/2771 ,  H03M13/2789

    Abstract: A method is described for designing a new prunable S-random interleaver (I) class to be used as a constituent part of turbo codes (C1, C2). With respect to previously proposed solutions the method has the advantage of being prunable to different block sizes while exhibiting at the same time, for any considered block size, performance comparable with the optimized "ad hoc" S-random interleavers. Another advantage is that, as for every S-random interleaver, the design rules are independent of the constituent codes and of the puncturing rate applied to the turbo code. Therefore, these interleavers potentially can find applications in any turbo code scheme (C1, C2) that requires interleaver size flexibility and code rate versatility, thanks to the advantage of requiring a single law storage (i.e. one ROM storage instead of several ROMs) from which all the others are obtained by pruning, without compromising the overall error rate performance.

    Abstract translation: 描述了一种用于设计要用作turbo码（C1，C2）的组成部分的新的可修剪的S随机交织器（I）类的方法。 对于先前提出的解决方案，该方法的优点在于可以同时展现不同的块大小，对于任何考虑的块大小，与优化的“ad hoc”S随机交织器相当的性能。 另一个优点是，对于每个S随机交织器，设计规则独立于构成码和应用于turbo码的打孔率。 因此，这些交织器潜在地可以在需要交织器大小灵活性和代码率多功能性的任何turbo码方案（C1，C2）中找到应用，这得益于需要单规则存储（即，一个ROM存储而不是几个ROM）​​的优点， 所有其他的都是通过修剪获得的，而不会影响整体错误率性能。

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