A new criterion for retransmission in type I H-ARQ schemes of LDPC coded OFDM systems

  • Min Ho Jang
  • , Beomkyu Shin
  • , Jong Seon No
  • , Sang Hyo Kim
  • , Dong Joon Shin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, a new criterion for reordering of lowdensity parity-check (LDPC) coded orthogonal frequency division multiplexing (OFDM) subframes is proposed for type I hybrid automatic repeat request (H-ARQ) systems. It is verified from numerical analysis that a subframe reordering pattern having larger channel capacity shows better bit error rate (BER). Also, it is shown that the subframe reordering pattern achieving equal combined power allocation for each subframe maximizes the channel capacity and outperforms other subframe reordering patterns in terms of BER performance. Simulation results are provided to confirm that for a very slow varying fading channel, the proposed subframe reordering scheme for achieving equal combined power allocation gives better BER performance than the conventional Chase combining scheme without increasing the decoding complexity.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
DOIs
StatePublished - 2009
Event2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall - Anchorage, AK, United States
Duration: 20 Sep 200923 Sep 2009

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

Conference2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
Country/TerritoryUnited States
CityAnchorage, AK
Period20/09/0923/09/09

Fingerprint

Dive into the research topics of 'A new criterion for retransmission in type I H-ARQ schemes of LDPC coded OFDM systems'. Together they form a unique fingerprint.

Cite this