The impact of the I/Q mismatching errors on the BER performance of OFDM communication systems

Nguyen Thanh Hieu, Heung Gyoon Ryu, Cheng Xiang Wang, Hsiao H. Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Orthogonal frequency division multiplexing (OFDM) signals are very sensitive to radio frequency (RF) impairments. One of the major impairments is the mismatching errors between the in-phase (I) and quadrature (Q) branches in the up and down-conversions. The I/Q mismatching errors can include phase and amplitude mismatching errors. These mismatching errors make the signal constellation expand and rotate, which severely degrades the performance of OFDM systems. In this paper, a closed-form expression for the bit error rate (BER) of the OFDM system in I/Q mismatching error environments is derived as a function of phase and amplitude mismatching error parameters. This enables a convenient and useful evaluation of the performance of OFDM communication systems with I/Q mismatching errors. The derived analytical expression is validated by the fact that computer simulation results closely match with the analytical derivation results. © 2007 IEEE.

Original languageEnglish
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Pages5423-5427
Number of pages5
DOIs
Publication statusPublished - 2007
EventIEEE International Conference on Communications 2007 - Glasgow, Scotland, United Kingdom
Duration: 24 Jun 200728 Jun 2007

Conference

ConferenceIEEE International Conference on Communications 2007
Abbreviated titleICC 2007
CountryUnited Kingdom
CityGlasgow, Scotland
Period24/06/0728/06/07

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  • Cite this

    Hieu, N. T., Ryu, H. G., Wang, C. X., & Chen, H. H. (2007). The impact of the I/Q mismatching errors on the BER performance of OFDM communication systems. In 2007 IEEE International Conference on Communications, ICC'07 (pp. 5423-5427) https://doi.org/10.1109/ICC.2007.898