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JGT
2007
73views more  JGT 2007»
13 years 10 months ago
New bounds on the edge number of a k-map graph
It is known that for every integer k ≥ 4, each k-map graph with n vertices has at most kn − 2k edges. Previously, it was open whether this bound is tight or not. We show that ...
Zhi-Zhong Chen
IPL
2000
111views more  IPL 2000»
13 years 10 months ago
On the performance of the first-fit coloring algorithm on permutation graphs
In this paper we study the performance of a particular on-line coloring algorithm, the First-Fit or Greedy algorithm, on a class of perfect graphs namely the permutation graphs. W...
Stavros D. Nikolopoulos, Charis Papadopoulos
GLOBECOM
2009
IEEE
14 years 5 months ago
Linear Beamforming for Multiuser MIMO Downlink Systems with Channel Orthogonalization
— Recently linear processing strategies have been developed to approach the optimum performance of dirty paper coding with low complexity in multiuser multiple-input multipleoutp...
Jin-Sung Kim, Sung Hyun Moon, Inkyu Lee
SIAMJO
2008
82views more  SIAMJO 2008»
13 years 10 months ago
Primal-Dual Affine Scaling Interior Point Methods for Linear Complementarity Problems
A first order affine scaling method and two mth order affine scaling methods for solving monotone linear complementarity problems (LCP) are presented. All three methods produce ite...
Florian A. Potra
ICASSP
2011
IEEE
13 years 2 months ago
Third order widely non linear Volterra MVDR beamforming
It is now well known that time invariant (TI) linear beamformers, such as the Capon’s beamformer, are only optimal for stationary Gaussian observations whose complex envelope is...
Pascal Chevalier, Abdelkader Oukaci, Jean Pierre D...