Estimation and Correction of transmitter-caused I/Q Imbalance in OFDM Systems

Autoren:

L. Brötje, S. Vogeler, K.-D. Kammeyer, R. Rueckriem, S. Fechtel

Kurzfassung:

In the presented paper a new method of estimating and correcting transmitter-caused I/Q imbalance in a transmission system based on the WLAN standard IEEE802.11a is proposed. The estimation process consists of an initial estimation followed by an iterative tracking of the I/Q imbalance parameters. Additionally, with the modified preamble structure presented in this paper a further improvement in estimation quality can be achieved. At the receiver the I/Q imbalance correction based on the estimated parameters leads to a significant performance gain as we will show in our simulation results.

Dokumenttyp:

Konferenzbeitrag

Veröffentlichung:

Hamburg, Deutschland, 10. - 11. September 2002

Konferenz:

7th International OFDM-Workshop (InOWo 02)

Index:

204

Dateien:

Paper