Combined puncturing and path pruning for convolutional codes and the application to unequal error protection

Chung-Hsuan Wang*, Yi Hsin Lin

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

In this paper, puncturing and path pruning are combined for convolutional codes to construct a new coding scheme for unequal error protection (UEP), called the hybrid punctured and path-pruned convolutional codes. From an algebraic viewpoint, we show that the hybrid codes not only inherit all the advantages of the conventional rate-compatible punctured convolutional codes and path-compatible pruned convolutional codes but also can provide more flexible choices of protection capability for UEP. In addition, a data-multiplexing scheme originally proposed for path-pruned codes which can guarantee smooth transition between rates without additional zero-padding for frame termination is proven applicable to the hybrid codes to improve the system throughput.

Original languageEnglish
Pages (from-to)1385-1389
Number of pages5
JournalIEEE Transactions on Communications
Volume56
Issue number9
DOIs
StatePublished - 6 Oct 2008

Keywords

  • Convolutional codes
  • Path pruning
  • Puncturing
  • Unequal error protection

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