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

Researchers

Research units

  • Tampere University of Technology

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.

Details

Original languageEnglish
Title of host publication2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016 - Proceedings
Publication statusPublished - 19 Apr 2017
MoE publication typeA4 Article in a conference publication
EventIEEE Global Conference on Signal and Information Processing - Greater Washington, United States
Duration: 7 Dec 20169 Dec 2016

Conference

ConferenceIEEE Global Conference on Signal and Information Processing
Abbreviated titleGlobalSIP
CountryUnited States
CityGreater Washington
Period07/12/201609/12/2016

ID: 13324035