Self-Interference Signal Path Characterization in Full-Duplex Transceivers Using Built-in Self-Test

Debatrayee Roychowdhury, Soroush Moallemi, Sule Ozev, Jennifer Kitchen

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

Abstract

This paper proposes a built-in self-test (BIST) method to measure the amplitude and phase shift characteristics of the RF signal path from the transmitter to receiver in a full-duplex system. With this information, the self-interference signal (SI) may be canceled in the RF domain of a full duplex, or simultaneous transmit and receive (STAR) topology. Analysis and simulation results are presented for a 2.4GHz signal with 200MHz bandwidth, and a prototype of the BIST technique has been measured at 800MHz. The average error in phase and gain between the BIST estimated value and actual RF measured value are 0.95% and 1.43%, respectively, which supports the ability to provide 48dB of SI signal cancellation (SIC).

Original languageEnglish (US)
Title of host publicationRWW 2020 - 2020 IEEE Radio and Wireless Symposium
PublisherIEEE Computer Society
Pages16-19
Number of pages4
ISBN (Electronic)9781728111209
DOIs
StatePublished - Jan 2020
Event2020 IEEE Radio and Wireless Symposium, RWW 2020 - San Antonio, United States
Duration: Jan 26 2020Jan 29 2020

Publication series

NameIEEE Radio and Wireless Symposium, RWS
Volume2020-January
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974

Conference

Conference2020 IEEE Radio and Wireless Symposium, RWW 2020
CountryUnited States
CitySan Antonio
Period1/26/201/29/20

Keywords

  • Built-in Self-test
  • Full-Duplex
  • Self Interference Cancelation
  • Transceivers

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication

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  • Cite this

    Roychowdhury, D., Moallemi, S., Ozev, S., & Kitchen, J. (2020). Self-Interference Signal Path Characterization in Full-Duplex Transceivers Using Built-in Self-Test. In RWW 2020 - 2020 IEEE Radio and Wireless Symposium (pp. 16-19). [9050038] (IEEE Radio and Wireless Symposium, RWS; Vol. 2020-January). IEEE Computer Society. https://doi.org/10.1109/RWS45077.2020.9050038