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arXiv · 1701.04746

On Puncturing Strategies for Polar Codes

Ludovic Chandesris·Valentin Savin·David Declercq
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Abstract

This paper introduces a class of specific puncturing patterns, called symmetric puncturing patterns, which can be characterized and generated from the rows of the generator matrix $G_N$. They are first shown to be non-equivalent, then a low-complexity method to generate symmetric puncturing patterns is proposed, which performs a search tree algorithm with limited depth, over the rows of $G_N$. Symmetric patterns are further optimized by density evolution, and shown to yield better performance than state-of-the-art rate compatible code constructions, relying on either puncturing or shortening techniques.

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Ludovic Chandesris, Valentin Savin, David Declercq. 2017-01-17. On Puncturing Strategies for Polar Codes. https://arxiv.org/abs/1701.04746

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