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 language | English |
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| Title of host publication | 2007 IEEE International Conference on Communications, ICC'07 |
| Pages | 5423-5427 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2007 |
| Event | IEEE International Conference on Communications 2007 - Glasgow, Scotland, United Kingdom Duration: 24 Jun 2007 → 28 Jun 2007 |
Conference
| Conference | IEEE International Conference on Communications 2007 |
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| Abbreviated title | ICC 2007 |
| Country/Territory | United Kingdom |
| City | Glasgow, Scotland |
| Period | 24/06/07 → 28/06/07 |