TCM for OFDM IM

Jinho Choi, Youngwook Ko

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
417 Downloads (Pure)

Abstract

Orthogonal frequency division multiplexing(OFDM) with index modulation (IM) is a multicarriertransmission technique for frequency-selective fading channels.Although it is energy and spectral efficient, its performancemay not be satisfactory as some active subcarriers can besuppressed by fading. In this letter, we consider trellis codedmodulation (TCM) for OFDM-IM in order to improve thedetection performance of active subcarriers by increasing theHamming distance between index symbols. We devise mappingrules for TCM for two cases and it is shown that the diversityorder can be improved, which results in a lower probability ofindex error.
Original languageEnglish
Pages (from-to)50-53
Number of pages4
JournalIEEE Wireless Communications Letters
Volume7
Issue number1
Early online date14 Sep 2017
DOIs
Publication statusPublished - Feb 2018

Keywords

  • OFDM IM
  • Trellis Coded Modulation

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