Blind Carrier Frequency Offset Estimation in Generalized Frequency Division Multiplexing

Ana Belen Martinez, Maximilian Matthé, Marwa Chafii, Gerhard Fettweis

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

Abstract

In generalized frequency division multiplexing (GFDM), the self-generated inter-carrier interference can be exploited to estimate the carrier frequency offset (CFO). In this paper, the state-of-the-art algorithm for the blind estimation of the CFO in GFDM is evaluated in detail. For this purpose, the corresponding theoretical model under additive white Gaussian noise (AWGN) channel conditions is derived. Furthermore, an alternative approach to increase the accuracy of the estimation is proposed. Depending on the GFDM parameterization and channel conditions, the new method can significantly improve the mean square error (MSE) of the CFO without compromising the latency. Simulation results show that under AWGN channel conditions, a GFDM configuration with a low number of subsymbols can highly benefit from the proposed approach. In multipath fading channels, the MSE can be considerably reduced in systems with a moderate subcarrier spacing.

Original languageEnglish (US)
Title of host publication2019 International Conference on Computing, Networking and Communications, ICNC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages869-875
Number of pages7
ISBN (Electronic)9781538692233
DOIs
StatePublished - Apr 8 2019
Event2019 International Conference on Computing, Networking and Communications, ICNC 2019 - Honolulu, United States
Duration: Feb 18 2019Feb 21 2019

Publication series

Name2019 International Conference on Computing, Networking and Communications, ICNC 2019

Conference

Conference2019 International Conference on Computing, Networking and Communications, ICNC 2019
Country/TerritoryUnited States
CityHonolulu
Period2/18/192/21/19

Keywords

  • blind
  • carrier frequency offset (CFO)
  • GFDM
  • inter-carrier interference (ICI)
  • synchronization

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software
  • Hardware and Architecture

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