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

11 Citations (Scopus)

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

Fingerprint Dive into the research topics of 'The impact of the I/Q mismatching errors on the BER performance of OFDM communication systems'. Together they form a unique fingerprint.

  • 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