GFDM Interference Cancellation for Flexible Cognitive Radio PHY Design

Rohit Datta, Nicola Michailow, Michael Lentmaier, Gerhard Fettweis

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

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Generalized frequency division multiplexing (GFDM) is a new digital multicarrier concept. The GFDM modulation technique is extremely attractive for applications in a fragmented spectrum, as it provides the flexibility to choose a pulse shape and thus allows reduction of the out-of-band leakage of opportunistic cognitive radio signals into incumbent frequency space. However, this degree of freedom is obtained at the cost of loss of subcarrier orthogonality, which leads to self-inter-carrier-interference. This paper will explain how self-interference can be reduced by a basic and a double-sided serial interference cancellation technique and show that these interference cancellation techniques improve the GFDM bit error rate to match the theoretical performance of the well studied orthogonal frequency division multiplexing (OFDM).
Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference (VTC Fall), 2012
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)978-1-4673-1880-8
Publication statusPublished - 2012
EventIEEE Vehicular Technology Conference (VTC Fall), 2012 - Quebec City, Canada
Duration: 2012 Sept 32012 Sept 6

Publication series

ISSN (Print)1090-3038


ConferenceIEEE Vehicular Technology Conference (VTC Fall), 2012
CityQuebec City

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

Free keywords

  • GFDM
  • cognitive radio
  • OFDM
  • multicarrier transmission


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