Analysis of Self-Interference Cancellation under Phase Noise, CFO and IQ Imbalance in GFDM Full-Duplex Transceivers

Amirhossein Mohammadian, Chinthananda Tellambura, Mikko Valkama

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)
70 Downloads (Pure)


This paper investigates a full-duplex base station using a generalized frequency division multiplexing (GFDM) transceiver with the radio frequency (RF) impairments phase noise, carrier frequency offset (CFO) and in-phase (I) and quadrature (Q) imbalance. To fully focus on the RF impairment issue, we study the simple configuration of single uplink user and single downlink user. They both are half duplex wireless. In the uplink, we study analog and digital self-interference (SI) cancellation and propose a complementary SI suppression method. Desired signal and residual SI powers and signal-to-interference ratio (SIR) are derived in closed form. Similarly, in the downlink, we derive desired signal power, co-channel interference signal power caused by the uplink user and SIR. The RF impairments degrade the efficiency of SI cancellation and affect GFDM more negatively than full-duplex orthogonal frequency division multiplexing (OFDM). Hence, we propose full-duplex GFDM receiver filters for maximizing the SIR for both uplink and downlink transmissions. Finally, the uplink and downlink rates and the uplink-downlink rate region are derived. Significantly, the optimal-filter based GFDM outperforms full-duplex OFDM by 25 dB higher SIR and an uplink rate increase of 500%.
Original languageEnglish
Pages (from-to)700-713
JournalIEEE Transactions on Vehicular Technology
Issue number1
Early online date15 Nov 2019
Publication statusPublished - Jan 2020
Publication typeA1 Journal article-refereed


  • Full-duplex radios
  • generalized frequency division multiplexing
  • radio frequency impairments
  • signal-to-interference ratio
  • filter design
  • rate region

Publication forum classification

  • Publication forum level 3


Dive into the research topics of 'Analysis of Self-Interference Cancellation under Phase Noise, CFO and IQ Imbalance in GFDM Full-Duplex Transceivers'. Together they form a unique fingerprint.

Cite this