Codebook design for MIMO retransmission system

Jinwoo Kim, Chung G. Kang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This letter proposes a new retransmission structure with multiple retransmission codebooks for a linear precoding-based closed-loop multiple-input multiple-output (CL-MIMO) system. While conventional codebooks are defined only for the initial transmission in CL-MIMO systems, we propose a multiple codebook structure in which a different codebook is used for each retransmission, instead of a single identical codebook for every retransmission. Simulation results indicate that in slowly fading channels the proposed scheme achieves a larger gain over the conventional scheme using a single codebook, especially as the number of antennas increases.

Original languageEnglish
Article number5962391
Pages (from-to)953-955
Number of pages3
JournalIEEE Communications Letters
Volume15
Issue number9
DOIs
Publication statusPublished - 2011 Sep

Keywords

  • MIMO
  • Retransmission
  • codebook
  • precoding

ASJC Scopus subject areas

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

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