DocumentCode
3578875
Title
Compensation of frequency independent I/Q imperfections using LMS algorithm
Author
Talebpour, Faraz ; Varahram, Pooria ; b.Mohd.Ali, Borhanuddin ; Sali, A.
Author_Institution
Dept. of Computer and Communication Engineering, University Putra Malaysia, Serdang, 43400, Selangor, Malaysia
fYear
2014
Firstpage
352
Lastpage
356
Abstract
Due to the increasing demand of high data rate in recent years, orthogonal frequency division multiplexing (OFDM) and Direct up conversion transmitters (DCT) have gained significant interest. However such system´s efficiency can be compromised by front-end impairments such as In-phase Quadrature (I/Q) imperfections. In this paper the effects of IQ imbalance on transmitter is studied and an adaptive algorithm is developed to compensate such distortions. Simulation results show high level of accuracy in the proposed algorithm and its ability to estimate the IQ imperfections. It also shows that the proposed compensator could overcome the imperfections perfectly.
Keywords
Adaptation models; Channel estimation; Estimation; Least squares approximations; Mathematical model; Modulation; OFDM; Analog imperfections; LMS; OFDM; gain and phase imbalance; up conversion;
fLanguage
English
Publisher
ieee
Conference_Titel
Telecommunication Technologies (ISTT), 2014 IEEE 2nd International Symposium on
Type
conf
DOI
10.1109/ISTT.2014.7238234
Filename
7238234
Link To Document