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Design of new training sequence and estimation scheme for frequency dependent I/Q imbalance in MB-OFDM based UWB systems

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Author

Summary, in English

This paper analyzes the I/Q imbalance effect of direct-conversion receiver in wide-band wireless communication system and sets up frequency-selective I/Q imbalance model for ultra-wide band system. We design a new training sequence based on extra phase rotation and propose an estimation algorithm using diversity message introduced by I/Q imbalance during the demodulation process. Theoretical analysis and simulation results based on typical MB-OFDM based UWB system confirm that the estimation scheme proposed in this paper can achieve 5 dB EbNo advantage at PER=8%.

Publishing year

2009

Language

English

Pages

509-512

Publication/Series

[Host publication title missing]

Document type

Conference paper

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

IEEE 8th International Conference on ASIC (ASICON '09)

Conference date

2009-10-20 - 2009-10-23

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-1-4244-3868-6