A MIMO-OFDM channel estimation scheme utilizing complementary sequences
Publication
, Journal Article
Qureshi, TR; Zoltowski, MD; Calderbank, R
Published in: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
September 23, 2009
We present a pilot-assisted method for estimating the frequency selective channel in a MIMO-OFDM system. The pilot sequence is designed using the DFT of the Golay complementary sequences. Novel exploitation of the perfect autocorrelation property of Golay complementary sequences, in conjunction with OSTBC based pilot waveform scheduling across multiple OFDM frames, facilitates simple separation of the channel mixtures at the receive antennas. The DFT length used to transform the complementary sequence into the frequency domain is shown to be a key critical parameter for correctly estimating the channel. This channel estimation scheme is then extended to antenna arrays of arbitrary sizes. ©2009 IEEE.
Duke Scholars
Published In
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
DOI
ISSN
1520-6149
Publication Date
September 23, 2009
Start / End Page
2677 / 2680
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Qureshi, T. R., Zoltowski, M. D., & Calderbank, R. (2009). A MIMO-OFDM channel estimation scheme utilizing complementary sequences. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 2677–2680. https://doi.org/10.1109/ICASSP.2009.4960174
Qureshi, T. R., M. D. Zoltowski, and R. Calderbank. “A MIMO-OFDM channel estimation scheme utilizing complementary sequences.” ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, September 23, 2009, 2677–80. https://doi.org/10.1109/ICASSP.2009.4960174.
Qureshi TR, Zoltowski MD, Calderbank R. A MIMO-OFDM channel estimation scheme utilizing complementary sequences. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 2009 Sep 23;2677–80.
Qureshi, T. R., et al. “A MIMO-OFDM channel estimation scheme utilizing complementary sequences.” ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Sept. 2009, pp. 2677–80. Scopus, doi:10.1109/ICASSP.2009.4960174.
Qureshi TR, Zoltowski MD, Calderbank R. A MIMO-OFDM channel estimation scheme utilizing complementary sequences. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 2009 Sep 23;2677–2680.
Published In
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
DOI
ISSN
1520-6149
Publication Date
September 23, 2009
Start / End Page
2677 / 2680