Tampere University of Technology

TUTCRIS Research Portal

Reference receiver enabled digital cancellation of nonlinear out-of-band blocker distortion in wideband receivers

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

Details

Original languageEnglish
Title of host publicationProceedings of IEEE Global Conference on Signal and Information Processing
Place of PublicationWashington, DC
PublisherIEEE
Pages684-688
ISBN (Electronic)978-1-5090-4544-0
DOIs
Publication statusPublished - 7 Dec 2016
Publication typeA4 Article in a conference publication
EventIEEE Global Conference on Signal and Information Processing -
Duration: 1 Jan 1900 → …

Conference

ConferenceIEEE Global Conference on Signal and Information Processing
Period1/01/00 → …

Abstract

This paper proposes digital cancellation of nonlinear distortion originating from out-of-band blocking carriers and induced by the analog front-end nonlinearities in direct-conversion receivers (RXs). The cancellation is enabled by employing an additional reference RX for capturing these blockers. In addition, cancellation of mirror-frequency interference is targeted. The feed-forward cancellation of nonlinear distortion is blindly adaptive without any a priori information of the received signal or the nonlinearity characteristics of the RX. The performance of this approach is demonstrated with laboratory RF measurements using state-of-the-art base-station hardware. With the distortion cancellation, blocker tolerance of the RX is improved by 7-8 dB.

Publication forum classification