University of Oulu

V. Tapio, M. Sonkki and M. Juntti, "Analog Self-Interference Cancellation with Automatic Gain Control for Full-Duplex Transceivers," 2018 IEEE 87th Vehicular Technology Conference (VTC Spring), Porto, 2018, pp. 1-5. doi: 10.1109/VTCSpring.2018.8417518

Analog self-interference cancellation with automatic gain control for full-duplex transceivers

Saved in:
Author: Tapio, Visa1; Sonkki, Marko1; Juntti, Markku1
Organizations: 1Centre for Wireless Communications, University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.3 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2018
Publish Date: 2018-10-11


The main challenge in full-duplex transceiver design is the self-interference (SI). Analog SI isolation is performed at radio frequency (RF) by using an antenna design based on the characteristic modes theory and using active cancelation principle. Two different structures based on using a vector down-converter and a complex multiplier are used for analog baseband SI cancellation. Cancellers are tuned using a automatic gain control (AGC) enhanced variable-step steepest descent algorithm while transmitting a data signal to a distant node in half-duplex mode. Simulations show that the inclusion of AGC into the tuning process speeds up the convergence significantly.

see all

Series: IEEE Vehicular Technology Conference
ISSN: 1550-2252
ISSN-L: 1550-2252
ISBN: 978-1-5386-6355-4
ISBN Print: 978-1-5386-6356-1
Pages: 1 - 5
Article number: 8417518
DOI: 10.1109/VTCSpring.2018.8417518
Host publication: Proceedings of the 2018 Spring IEEE Vehicular Technology Conference (VTC). Defining the future mobile world. Porto, Portugal 3-6 June 2018
Conference: IEEE Vehicular Technology Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The research has been partially funded by Tekes - the Finnish Funding Agency for Innovation, Nokia Oyj, Esju Oy and CoreHW.
Copyright information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.