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Compensation of frequency independent I/Q imperfections using LMS algorithm


Talebpour, Faraz and Varahram, Pooria and Mohd Ali, Borhanuddin and Sali, Aduwati (2014) Compensation of frequency independent I/Q imperfections using LMS algorithm. In: 2014 IEEE 2nd International Symposium on Telecommunication Technologies (ISTT), 24-26 Nov. 2014, Langkawi, Kedah, Malaysia. (pp. 352-356).


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.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/ISTT.2014.7238234
Publisher: IEEE
Keywords: Analog imperfections; OFDM; Up conversion; Gain and phase imbalance; LMS
Depositing User: Nabilah Mustapa
Date Deposited: 10 Jun 2019 02:43
Last Modified: 10 Jun 2019 02:43
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/ISTT.2014.7238234
URI: http://psasir.upm.edu.my/id/eprint/68605
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