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On the Beamforming Design for Efficient Interference Alignment

delete2009-11-01
delete47
PRE
AI
S
Sang Won Choi *
S
Syed A. Jafar
S
Sae-Young Chung
DOI:10.1109/LCOMM.2009.090735delete
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Abstract

Abstract

En 中文
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.
Keywords:
Beamforming
interference alignment
multiplexing gain

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

Organization

University of California System cover
University of California System
Scholars:
37.5W
Papers: 33.7W
Citations: 6.6K