A Pre-Whitening Scheme in a MIMO-Based Spectrum-Sharing Environment

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In this letter, we propose a pre-whitening scheme for a spectrum-sharing environment where multiple antennas are used for both primary and secondary users. The proposed pre-whitening scheme is different from the conventional post-whitening scheme for mitigating multiple-input and multiple-output (MIMO) interference because a primary receiver does not require any pre-knowledge about the interference channel which is a more proper assumption in a spectrum-sharing environment. Moreover, the proposed scheme outperforms the conventional post-whitening scheme in terms of the secondary user capacity due to its interference-reduction capability.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2008-11
Language
English
Article Type
Article
Citation

IEEE COMMUNICATIONS LETTERS, v.12, no.11, pp.831 - 833

ISSN
1089-7798
DOI
10.1109/LCOMM.2008.080981
URI
http://hdl.handle.net/10203/21513
Appears in Collection
CS-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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