I/Q imbalance in MIMO STBC communication systems: Impact and solution

Mingzheng Cao, Hongya Ge

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

Abstract

In this work we study the performance degradation caused by the in-phase/quadrature (I/Q) imbalance of the transceivers in multiple-input multiple-output (MIMO) spacetime block coded (STBC) communication systems. The 2-Tx orthogonal STBC (OSTBC) systems, 4-Tx quasi-orthogonal STBC (QOSTBC) systems, and 4-Tx rotated QOSTBC (RQOSTBC) systems in the presence of I/Q imbalance are studied in detail. Our work shows that I/Q imbalance causes severe distortion in MIMO STBC communication systems. By exploiting the structure of the received signal, low-complexity solutions are proposed to mitigate the distortion caused by I/Q imbalance successfully.

Original languageEnglish (US)
Title of host publication2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success
DOIs
StatePublished - Dec 1 2008
Event2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success - Washington, DC, United States
Duration: Nov 17 2008Nov 19 2008

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

Other2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success
CountryUnited States
CityWashington, DC
Period11/17/0811/19/08

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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