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Compressive Sensing based Detector for Sparse Signal Modulation in Precoded OFDM

  • Jinho Choi
  • , Youngwook Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

In this paper, we propose a sparse signal modulation (SSM) method for precoded orthogonal frequency division multiplexing (OFDM) systems and study the signal detection. Although a receiver is able to exploit a path diversity gain with random precoding in OFDM, the complexity of the receiver is usually high as the orthogonality is not retained due to precoding. However, with SSM, we can derive a low-complexity detector that can provide reasonably good performances with a low sparsity ratio based on the notion of compressive sensing (CS). An important feature of a CS detector is that it can estimate SSM signals with a small fraction of the received signals over sub-carriers. This feature can allow us to build a low cost receiver with a small number of demodulators.
Original languageEnglish
Title of host publicationProc. of IEEE International Conference on Communications (ICC'15)
Place of PublicationLondon
Pages4536-4540
Number of pages5
DOIs
Publication statusPublished - Jun 2015
EventIEEE International Conference on Communications (ICC 2015) - London, United Kingdom
Duration: 08 Jun 201512 Jun 2015

Conference

ConferenceIEEE International Conference on Communications (ICC 2015)
Country/TerritoryUnited Kingdom
CityLondon
Period08/06/201512/06/2015

Keywords

  • compressive sensing
  • Multicarrier index keying
  • ofdm

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