Sequential pre-coding for MIMO hybrid ARQ

Jin W. Kim, Byung J. Kwak, Dong S. Kwon, Chung Gu Kang

Research output: Contribution to journalArticle

2 Citations (Scopus)


While the conventional codebook is defined only for the initial transmission in the closed-loop MIMO system, this paper proposes a new retransmission structure with a sequence of multiple codebooks, rather than using a single identical codebook for every retransmission. The pre-coding matrices in each codebook are sequentially linked so that each one can be used for a sequential hybrid ARQ transmission attempt, without invoking any index feedback from the receiver. It has been shown that the proposed codebook structure provides a performance gain of more than 5dB over the conventional scheme in the long-term-static channel.

Original languageEnglish
Article number5534609
Pages (from-to)803-805
Number of pages3
JournalIEEE Communications Letters
Issue number9
Publication statusPublished - 2010 Sep 1



  • codebook
  • Hybrid ARQ
  • linear precoding
  • MIMO

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Modelling and Simulation

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