A comparison of OFDM and GFDM-based MFSK modulation schemes for robust IoT applications

Ghaith Al-Juboori, Evgeny Tsimbalo, Angela Doufexi, Andrew R. Nix

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)
333 Downloads (Pure)

Abstract

Orthogonal Frequency Division Multiplexing based M-ary Frequency Shift Keying (OFDM-MFSK) is a non- coherent modulation scheme that was proposed for robust transmission over fast fading environments. It combines the MFSK modulation scheme with OFDM. In this paper, the Generalised Frequency Division Multiplexing (GFDM) waveform is considered to use with MFSK to take the advantages of the low out of band radiation and relaxed synchronisation requirements. Different methods to combine MFSK and GFDM are proposed and their performances are evaluated and compared with OFDM-MFSK. The mixed sub-carrier and sub-symbol method, which is one of the proposed methods, is the most promising technique. Additionally, gain margin is also seen for MFSK modulation scheme compared to ordinary OFDM or GFDM. This gain can be used to radically improve the performance for some 5G applications, such as IoT, at low Signal to Noise Ratio (SNR) values.

Original languageEnglish
Title of host publication2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
Volume2017-June
ISBN (Electronic)9781509059324
ISBN (Print)9781509059331
DOIs
Publication statusPublished - 14 Nov 2017
Event85th IEEE Vehicular Technology Conference, VTC Spring 2017 - Sydney, Australia
Duration: 4 Jun 20177 Jun 2017

Conference

Conference85th IEEE Vehicular Technology Conference, VTC Spring 2017
CountryAustralia
CitySydney
Period4/06/177/06/17

Keywords

  • GFDM
  • GFDM-MFSK
  • Noncoherent detection
  • OFDM-MFSK

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