611 search results - page 41 / 123 » The Cardinality Matrix Constraint |
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TCOM
2010
14 years 4 months ago
2010
Abstract--Motivated by the recent concept of Spatial Modulation (SM), we propose a novel Space-Time Shift Keying (STSK) modulation scheme for Multiple-Input Multiple-Output (MIMO) ...
JMLR
2010
14 years 4 months ago
2010
We present an extension of convex-hull non-negative matrix factorization (CH-NMF) which was recently proposed as a large scale variant of convex non-negative matrix factorization ...
SIAMJO
2010
14 years 4 months ago
2010
We present a general semidefinite relaxation scheme for general n-variate quartic polynomial optimization under homogeneous quadratic constraints. Unlike the existing sum-of-squar...
ICASSP
2008
IEEE
15 years 4 months ago
2008
IEEE
In this paper, we develop an improved approach to the worstcase robust adaptive beamforming for general-rank signal models by means of taking into account the positive semi-defin...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
In this paper, we develop a new approach to the robust beamforming for general-rank signal models. Our method is based on the worst-case performance optimization using a semi-de n...