A Self-Interference-Tolerant, Multipath Rake Receiver with More Than 40-dB Rejection and 9-dB SNR Multipath Gain in a Fading Channel

Ahmed Hamza, Cameron Hill, Hussam Alshammary, James Buckwalter

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper presents a 3-finger rake receiver (RX) that exploits multipath characteristics in PN-modulated received signals to improve the signal-to-noise ratio (SNR) in full-duplex (FD) links. Orthogonality between PN codes allows up to 41.2 dB of TX self-interference (TX-SI) rejection and autocorrelation between delayed versions of received PN code improves the SNR by 9 dB. The receiver is implemented in 45-nm SOI CMOS and is tunable from 0.4 to 1.4 GHz with 30.5 dB of gain and an in-band/out-of-band baseband IIP3 of-6.5/14.2 dBm while consuming 45.8 mW per finger.

Original languageEnglish
Title of host publicationRFIC 2020 - 2020 IEEE Radio Frequency Integrated Circuits Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages51-54
Number of pages4
ISBN (Electronic)9781728168098
DOIs
StatePublished - Aug 2020

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
Volume2020-August
ISSN (Print)1529-2517

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Keywords

  • code-domain
  • full-duplex (FD)
  • multipath
  • PN modulation
  • simultaneous transmit and receive (STAR)

ASJC Scopus subject areas

  • General Engineering

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