Estimation and Compensation of IQ Imbalance in an SC/FDE System
Sprache des Titels:
Englisch
Original Kurzfassung:
Robust communication concepts and/or
synchronization algorithms represent one of the most
important aspects of high rate wireless communication
systems. In this work efficient concepts and algorithms
for the estimation and compensation of IQ imbalance
in SC/FDE (Single Carrier Systems with Frequency
Domain Equalization) systems are developed. SC/FDE
represents a very robust transmission concept and the
underlying data structure is optimally suited for
synchronization purposes. In this work we propose
preamble based algorithms for the estimation and
compensation of the IQ imbalance as well as
algorithms based on a so called Unique Word (UW),
which is part of the investigated SC/FDE transmit
signal structure anyhow. Novel algorithms, which not
only allow to estimate the IQ imbalance itself, but
additionally allow to disburden the radio channel
estimation from IQ-distortions, are introduced. It is
demonstrated that the developed concepts allow to
compensate the effects of the IQ imbalance almost
completely – for additive white Gaussian noise
(AWGN) as well as for multi-path channels.
Sprache der Kurzfassung:
Englisch
Journal:
Proceedings of the European Microwave Association
Erscheinungsjahr:
2005
Anzahl der Seiten:
10
Reichweite:
international
Publikationstyp:
Aufsatz / Paper in sonstiger referierter Fachzeitschrift