On the Equivalence of Interleavers for Turbo Codes

被引：19

作者：

Bohorquez, Ronald Garzon ^{[1
]}

Nour, Charbel Abdel ^{[1
]}

Douillard, Catherine ^{[1
]}

机构：

[1] Telecom Bretagne, Dept Elect, Inst Mines Telecom, CNRS,UMR 6285,Lab STICC, CS 83818, F-29238 Brest 3, France

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2015年 / 4卷 / 01期

关键词：

Turbo codes; almost regular permutation (ARP) interleavers; dithered relative prime (DRP) interleaver; quadratic permutation polynomial (QPP) interleaver; equivalence; PERMUTATION POLYNOMIALS;

D O I：

10.1109/LWC.2014.2367517

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Three of the most common interleavers for turbo codes (TCs) are dithered relative prime (DRP) interleavers, quadratic permutation polynomial (QPP) interleavers, and almost regular permutation (ARP) interleavers. In this paper, it is shown that DRP and QPP interleavers can be expressed in the ARP interleaver function form. Furthermore, QPP interleavers can be seen as a particular case of ARP interleavers, in which the values of the periodic shifts follow the quadratic term of the QPP interleaver function. Some application examples of the equivalent expressions are provided. Particularly, in the QPP interleaver case, the different instances in the Long-Term Evolution standard are considered. Obtained results are useful when investigating a suitable and general permutation model for TCs.

引用

页码：58 / 61

页数：4

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