Sequential pre-coding for MIMO hybrid ARQ

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

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

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
Volume14
Issue number9
DOIs
Publication statusPublished - 2010 Sept

Bibliographical note

Funding Information:
Manuscript received January 31, 2010. The associate editor coordinating the review of this letter and approving it for publication was Z. Yan. This work was partly supported by the IT R&D programs of MKE/KEIT (KI001895, Development of original technology for next-generation Tactical Defense Communication Network) and (KI002139, Development of cooperative operation profiles in multicell wireless systems). J. W. Kim and C. G. Kang are with the Department of Electrical Engineering, Korea University, Seoul, Korea (e-mail: ccgkang@korea.ac.kr). B. J. Kwak and D. S. Kwon are with the Electronics and Telecommunications Research Institute (ETRI), Daejeon, Korea. Digital Object Identifier 10.1109/LCOMM.2010.072310.100171

Keywords

  • Hybrid ARQ
  • MIMO
  • codebook
  • linear precoding

ASJC Scopus subject areas

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

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