Santra, Avik and Hari, K V S (2017) A Novel Subspace Based Method for Compensation of Multiple CFOs in Uplink MIMO OFDM Systems. In: IEEE COMMUNICATIONS LETTERS, 21 (9). pp. 1993-1996.
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Abstract
The tri-linear data model for an arbitrary multi-user uplink multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) system comprising orthogonal frequency division multiplexing access users and co-channel (CC) users is formulated in this letter. A novel subspace-based method for multi-access interference cancellation and CC data separation in multi-user MIMO OFDM systems, utilizing the independent manifolds spanned by user's carrier frequency offset matrix, is proposed in this letter. The system constraints under which the proposed subspace nulling method works are derived, which includes the under-determined cases, where minimum mean square error/zero forcing methods fail.
Item Type: | Journal Article |
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Publication: | IEEE COMMUNICATIONS LETTERS |
Additional Information: | Copy right for this article belongs to the IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering Division of Electrical Sciences > Electrical Communication Engineering > Electrical Communication Engineering - Technical Reports |
Date Deposited: | 07 Oct 2017 06:07 |
Last Modified: | 07 Oct 2017 06:07 |
URI: | http://eprints.iisc.ac.in/id/eprint/57983 |
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