Parametric modeling in mitigating the I/Q mismatch: Estimation, equalization, and performance analysis

Cao Mingzheng, Ge Hongya

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

1 Scopus citations

Abstract

In this work, we, using a mapping, transform the mismatch compensation problem into an estimation and equalization problem. By doing so, the in-phase and quadrature (I/Q) system mismatch parameters, i.e., the amplitude gains of I/Q channels and the phase imbalance, can be first estimated reliably and then mitigated by equalization. We also derive the Cramer-Rao lower bounds (CRLBs) of the parameters and study the performances of different phase imbalance estimates. Simulation results show that the mean square errors of the estimated parameters follow the trends of their corresponding CRLBs. Hence the I/Q mismatch can be mitigated by equalization successfully.

Original languageEnglish (US)
Title of host publication2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1286-1290
Number of pages5
ISBN (Print)1424403502, 9781424403509
DOIs
StatePublished - Jan 1 2006
Event2006 40th Annual Conference on Information Sciences and Systems, CISS 2006 - Princeton, NJ, United States
Duration: Mar 22 2006Mar 24 2006

Publication series

Name2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings

Other

Other2006 40th Annual Conference on Information Sciences and Systems, CISS 2006
CountryUnited States
CityPrinceton, NJ
Period3/22/063/24/06

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

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