On the Beamforming Design for Efficient Interference Alignment

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An efficient interference alignment (IA) scheme is developed for K-user single-input single-output frequency selective fading interference channels. The main idea is to steer the transmit beamforming matrices such that at each receiver the subspace dimensions occupied by interference-free desired streams are asymptotically the same as those occupied by all interferences. Our proposed scheme achieves a higher multiplexing gain at any given number of channel realizations in comparison with the original IA scheme, which is known to achieve the optimal multiplexing gain asymptotically.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2009-11
Language
English
Article Type
Article
Keywords

CHANNEL

Citation

IEEE COMMUNICATIONS LETTERS, v.13, pp.847 - 849

ISSN
1089-7798
URI
http://hdl.handle.net/10203/95673
Appears in Collection
EE-Journal Papers(저널논문)
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