Optimal receiver filter for GFDM with timing and frequency offsets in uplink multiuser systems

Byungju Lim, Young-Chai Ko

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

4 Citations (Scopus)

Abstract

In uplink multiuser systems, different timing offset (TO) and carrier frequency offset (CFO) of different users cause multiuser interference (MUI) to desired user. In this paper, we propose an optimal receiver filter for uplink transmission with generalized frequency division multiplexing (GFDM) when TO and CFO of different users exist. Proposed optimal receiver filter maximizes signal-to-interference ratio (SIR) of desired user with TO and CFO in Rayleigh channel. Based on SIR expression derived in closed form in the presence of TO and CFO, we obtain the optimal receiver filter by solving Rayleigh quotient problem. We show from the simulation that the proposed receiver filter effectively eliminates MUI caused by TO within cyclic prefix range and CFO compared to the conventional zero-forcing filter.

Original languageEnglish
Title of host publication2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
Volume2018-April
ISBN (Electronic)9781538617342
DOIs
Publication statusPublished - 2018 Jun 8
Event2018 IEEE Wireless Communications and Networking Conference, WCNC 2018 - Barcelona, Spain
Duration: 2018 Apr 152018 Apr 18

Other

Other2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
CountrySpain
CityBarcelona
Period18/4/1518/4/18

Keywords

  • Carrier frequency offset
  • Filter design
  • GFDM
  • Interference cancellation
  • MUI
  • Multiuser
  • SIR
  • Timing offset

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Lim, B., & Ko, Y-C. (2018). Optimal receiver filter for GFDM with timing and frequency offsets in uplink multiuser systems. In 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018 (Vol. 2018-April, pp. 1-6). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2018.8377271