Efficient soft demapping for M-ary APSK

  • Meixiang Zhang*
  • , Sooyoung Kim
  • *Corresponding author for this work

Research output: Contribution to conferenceConference paperpeer-review

Abstract

In this paper, we present an efficient soft demapping method for M-ary APSK based on hard decision thresholds (HDT). The proposed scheme is of great reducing in computational complexity compared to maximum likelihood detection (MLD) using log likelihood ratio (LLR) and Max LLR. We demonstrate the bit error rate (BER) performance of various soft demapping methods combined with turbo codes. The BER simulation results reveal that the proposed method can achieve almost approximating performance to MLD.

Original languageEnglish
Title of host publication2011 International Conference on ICT Convergence, ICTC 2011
Pages641-644
Number of pages4
DOIs
StatePublished - 2011
Event2011 International Conference on ICT Convergence, ICTC 2011 - Seoul, Korea, Republic of
Duration: 2011.09.282011.09.30

Publication series

Name2011 International Conference on ICT Convergence, ICTC 2011

Conference

Conference2011 International Conference on ICT Convergence, ICTC 2011
Country/TerritoryKorea, Republic of
CitySeoul
Period11.09.2811.09.30

Keywords

  • APSK
  • DVB-S2
  • iterative decoding
  • soft demapping

Quacquarelli Symonds(QS) Subject Topics

  • Computer Science & Information Systems

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