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Joint estimation scheme of front-end imperfection in MB-OFDM systems

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Author

Summary, in English

In this paper, we investigate the analog front-end imperfection in multi-band orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) systems and propose a joint estimation and compensation scheme. The estimation of CFO and SFO is presented on frequency domain, which is robust to frequency dependent I/Q imbalance. After that, I/Q imbalance and channel response is jointly estimated with partial compensation to CFO and SFO. Finally, pilot sub-carriers within OFDM symbols are used to track the residual phase distortion. Simulation results show that the proposed joint estimation and compensation scheme achieves 0.3dB SNR advantage in practical MB-OFDM UWB systems comparing to traditional joint estimation algorithm.

Publishing year

2010

Language

English

Pages

2135-2138

Publication/Series

[Host publication title missing]

Document type

Conference paper

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

IEEE International Symposium on Circuits and Systems (ISCAS), 2010

Conference date

2010-05-30 - 2010-06-02

Conference place

Paris, France

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-1-4244-5308-5