Maiztasunarekiko independentea den I/Q desorekaren azterketa banda zabaleko mikrouhin loturetan

Abstract

Etorkizuneko mugikor sareen eskakizunei aurre egiteko, puntuz puntuko mikrouhin loturen helburunagusia hainbat Gigabit-eko datu tasak lortzea da, horretarako beharrezkoak diren banda zabalaeta maila altuko modulazioak erabiliz.E-banda lan egiten duten eta zero-IF arkitektura dutensistemenek hautagai aproposenak dirudite helburu hau lortzeko.Hala ere, E-bandako igorgailu-hargailuen diseinuak erronka handiak aurkezten ditu, hala nola, I/Q desorekak nabarmen kaltetzendu sistemaren errendimendua.Artikulu honetan I/Q desorekak igorgailu-hargailuetan duen eraginaaztertzeaz gain, seinalearen prozesatze digitalaren bitartez akats hau zuzentzeko teknikak ere ikusiko dira.In order to cope with the requirements of future networks, mmW links should achieve Gigabit datarates.These data rates can be achieved using wide-band and high order modulations in E-Band.Zero-IF architectures are good candidates for integrated transceivers. However, the design of integratedtransceivers in the E-band is a challenging issue. An important source of degradation is I/Q imbalance,which can significantly reduce the performance of a communication system. In this paper, the impactof the I/Q imbalance impairment on the transmitted and received signal is analyzed and suitable digitalsignal processing techniques are evaluated.