Title :
Baseband estimation and compensation of joint TX/RX I/Q imbalance in SC-FDE transceivers
Author :
Narayanan, Sudharsan ; Narasimhan, Balachander ; Al-Dhahir, Naofal
Author_Institution :
Dept. of Electr. Eng., Univ. of Texas at Dallas, Dallas, TX
Abstract :
Previous work on I/Q imbalance in SC-FDE transceivers investigates the effect of receiver I/Q imbalance but does not consider Doppler effects due to mobility. SCFDE in doubly-selective channels is studied without considering I/Q imbalance. In this paper, we derive an equivalent channel model for SC-FDE in the presence of both joint Tx/Rx I/Q imbalance and mobility and present an effective low-complexity digital baseband compensation scheme. Furthermore, we propose a novel joint channel and I/Q imbalance parameter estimation scheme for SC-FDE transceivers.
Keywords :
Doppler shift; mobile radio; transceivers; Doppler effects; SC-FDE; baseband estimation; doubly-selective channels; joint TX-RX I-Q imbalance; low-complexity digital baseband compensation scheme; parameter estimation scheme; single carrier with frequency domain equalization; Baseband; Bit error rate; Channel estimation; Doppler effect; Equalizers; Frequency domain analysis; OFDM; Radio frequency; Transceivers; Transmitters; Equalization; Estimation; I/Q imbalance; Mobility; OFDM; SC-FDE;
Conference_Titel :
Information Sciences and Systems, 2009. CISS 2009. 43rd Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-2733-8
Electronic_ISBN :
978-1-4244-2734-5
DOI :
10.1109/CISS.2009.5054781
