Analog Self-Interference Cancellation For Full Duplex Communication Systems Tam Çift Yönlü Haberleşme Sistemleri için Analog Özgirişim Giderme Teknikleri

Ozkul G., TOKER C.

30th Signal Processing and Communications Applications Conference, SIU 2022, Safranbolu, Turkey, 15 - 18 May 2022 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu55565.2022.9864948
  • City: Safranbolu
  • Country: Turkey
  • Keywords: analog self interference cancellation, Error Vector Magnitude, Full Duplex Communication, self interference, spectrum
  • Hacettepe University Affiliated: Yes

Abstract

© 2022 IEEE.Currently, with the development of the communication systems, the demand for high speeds and spectrum is increasing. In order to satisfy this demand, Full-Duplex Communication Systems are being studied. Since the communication is done at the same time and frequency in Full-Duplex Communication systems, it doubles the spectrum efficiency. However, since the communication is done at the same time and frequency, the strong transmit signal leakage the receiver path which is called self interference. This self interference must be cancelled so that communication can continue. According to the study results, approximately 60 dB self interference cancellation achieved at 10 MHz bandwidth and 2.5 GHz. Error Vector Magnitude analysis was carried out in order to examine the effect of this self Interference cancellation on communication systems. According to this analysis, -55 dBm receiving sensitivity performance was measured while transmitting 0 dBm.