Evaluation of the impact of I/Q imbalance compensation on communication performance-Reference-Cited by-同舟云学术

Evaluation of the impact of I/Q imbalance compensation on communication performance

Published:2022-12-30 Issue:2 Volume:64 Page:66-80
ISSN:1303-6009
Container-title:Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering
language:en
Short-container-title:Commun.Fac.Sci.Univ.Ank.Series A2-A3: Phys.Sci. and Eng.

Author:

SAĞIR Gizem Eda¹^ORCID,TAŞCIOĞLU Selçuk¹^ORCID

Affiliation:

1. ANKARA UNIVERSITY

Abstract

Quadrature mixing is widely used in wireless communication receivers since it provides a solution for image signal problem with low-cost implementations. Image signal is caused by phase and amplitude mismatches between in-phase (I) and quadrature (Q) paths of the receiver. This problem is known as I/Q imbalance and degrades the communication performance if not compensated. In this study, the impact of I/Q imbalance compensation on wireless communication performance is evaluated through experiments and simulations. Simulation results demonstrate that significant communication performance improvement can be achieved in terms of bit error rate (BER) and symbol error rate (SER) by compensating the I/Q imbalance properly. In the experiments, compensation is applied to the signals captured using a software defined radio with zero-IF architecture. Experimental results demonstrate that wireless transmission success rate for the zero-IF receiver is increased by compensating I/Q imbalance.

Funder

TÜBİTAK

Publisher

Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering

Subject

General Medicine

Reference17 articles.

1. Lyons, R. G., Understanding Digital Signal Processing, Prentice Hall, 2011.

2. Windisch, M., Fettweis, G., Blind I/Q imbalance parameter estimation and compensation in low-IF receivers, First International Symposium on Control, Communication and Signal Processing, (2004), 75-78, https://doi.org/10.1109/ISCCSP.2004.1296222.

3. Windisch, M., Fettweis, G., On the performance of standard-independent I/Q imbalance compensation in OFDM direct-conversion receivers, 13th European Signal Processing Conference, (2005), 1-5.

4. Windisch, M., Estimation and Compensation of IQ Imbalance in Broadband Communications Receivers. Jörg Vogt Verlag, Germany, 2007.

5. Held, I., Klein, O., Chen, A., Ma, V., Low complexity digital IQ imbalance correction in OFDM WLAN receivers, 2004 IEEE 59th Vehicular Technology Conference. VTC 2004- Spring (IEEE Cat. No.04CH37514), 2 (2004), 1172-1176, https://doi.org/10.1109/VETECS.2004.1389017.