An Efficient Algorithm for Zero-Forcing Coordinated Beamforming

Title
An Efficient Algorithm for Zero-Forcing Coordinated Beamforming
Author(s)
유희정김학수[김학수]성영철[성영철]이용훈[이용훈]
Keywords
CHANNELS; MIMO
Issue Date
201207
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE COMMUNICATIONS LETTERS, v.16, no.7, pp.994 - 997
Abstract
The problem of beam tracking for zero-forcing coordinated beamforming in multiple-cell time-varying multiple-input multiple-output channels is considered. Based on null-space perturbation theory, an efficient update algorithm for block-diagonalization-based zero-forcing coordinated beam design is proposed and its performance is analyzed. In slowly-varying channels, the proposed algorithm well tracks the zero-forcing beam solution and significantly reduces computational complexity by simply updating beamforming matrices instead of redesigning them with new channel state information at each time step.
URI
http://hdl.handle.net/YU.REPOSITORY/27654http://dx.doi.org/10.1109/LCOMM.2012.050412.112565
ISSN
1089-7798
Appears in Collections:
공과대학 > 모바일정보통신공학과 > Articles
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