Analysis of reliability-based incremental redundancy with convolutional codes

Eugene Visotsky*, Yakun Sun, Michael L Honig, Vinayak Tripathi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Incremental redundancy, or Hybrid type-II ARQ (HARQ), algorithms use a combination of forward error correction and retransmissions to guarantee reliable packet data communication. In our previous work [1], we have proposed an adaptive HARQ algorithm that exploits received codeword reliability for optimizing the size of the subsequent retransmissions. The optimization is based on two mappings: the codeword reliability to block error rate (BLER) mapping and the coding rate to codeword reliability mapping. In this paper, we provide analytical approximations for these mappings for any convolutional code. Through simulations, the approximations are shown to be accurate in the range of interest.

Original languageEnglish (US)
Number of pages1
JournalIEEE International Symposium on Information Theory - Proceedings
StatePublished - Oct 20 2004

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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