Cross-layer design based on RC-LDPC codes in MIMO channels with estimation errors

Yuling Zhang, Dongfeng Yuan, Cheng Xiang Wang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this paper, we propose a cross-layer design framework combining adaptive modulation and coding (AMC) with hybrid automatic repeat request (HARQ) based on rate-compatible low-density parity-check codes (RC-LDPC) in multiple-input multiple-output (MIMO) fading channels with estimation errors. First, we propose a new puncturing pattern for RC-LDPC codes and demonstrate that the new puncturing pattern performs similar to the random puncturing but is easier to apply. Then, we apply RC-LDPC codes with the new puncturing pattern to the cross-layer design combing AMC with ARQ over MIMO fading channels and derive the expressions for the throughput of the system. The effect of channel estimation errors on the system throughput is also investigated. Numerical results show that the joint design of AMC and ARQ based on RC-LDPC codes can achieve considerable spectral efficiency gain. © 2007 Elsevier GmbH. All rights reserved.

Original languageEnglish
Pages (from-to)659-665
Number of pages7
JournalAEU - International Journal of Electronics and Communications
Volume62
Issue number9
DOIs
Publication statusPublished - 1 Oct 2008

Keywords

  • Adaptive modulation and coding (AMC)
  • Automatic repeat request (ARQ)
  • Cross-layer design
  • Multiple-input multiple-output (MIMO) channel
  • Rate-compatible LDPC codes

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