Error Performance of Circular θ-QAM with I/Q Imbalances

In communication systems, in-phase and quadrature (I/Q) amplitude and phase imbalances cause severe degradation in error performance. In this paper, we present the symbol and bit error performances of circular <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\theta$</tex> -quadrature amplitude modulation (CTQAM) with I/Q imbalances in an additive white Gaussian noise channel and show that CTQAM is more robust to I/Q imbalances than the conventional square QAM.

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Published
2024-10-16
DOI
https://doi.org/10.1109/ictc62082.2024.10827789
Primary Topic
Radio Frequency Integrated Circuit Design
Type
article
Field-Weighted Citation Impact
0.00

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article

Error Performance of Circular θ-QAM with I/Q Imbalances

Junhwan Lee, Seongjin Ahn
Radio Frequency Integrated Circuit Design
article

Error Performance of Circular θ-QAM with I/Q Imbalances

Junhwan Lee, Seongjin Ahn
article en

Abstract

In communication systems, in-phase and quadrature (I/Q) amplitude and phase imbalances cause severe degradation in error performance. In this paper, we present the symbol and bit error performances of circular <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\theta$</tex> -quadrature amplitude modulation (CTQAM) with I/Q imbalances in an additive white Gaussian noise channel and show that CTQAM is more robust to I/Q imbalances than the conventional square QAM.

Electronics and Telecommunications Research Institute (KR)
Institute of Information and Communication Technologies, Bulgarian Academy of Sciences
Openalex Percentile: Top 76%
Radio Frequency Integrated Circuit Design
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