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PADS
2009
ACM
16 years 19 days ago
Scalable Time Warp on Blue Gene Supercomputers
Abstract—In this paper we illustrate scalable parallel performance for the Time Warp synchronization protocol on the L and P variants of the IBM Blue Gene supercomputer. Scalable...
David W. Bauer, Christopher D. Carothers, Akintayo...
ICC
2009
IEEE
124views Communications» more  ICC 2009»
16 years 17 days ago
Distributed Interference Pricing for the MIMO Interference Channel
Abstract—We study distributed algorithms for updating transmit precoding matrices for a two-user Multi-Input/Multi-Output (MIMO) interference channel. Our objective is to maximiz...
Changxin Shi, David A. Schmidt, Randall A. Berry, ...
MIRAGE
2009
Springer
16 years 11 days ago
Interpreting Face Images by Fitting a Fast Illumination-Based 3D Active Appearance Model
Abstract. We present a fast and robust iterative method for interpreting face images under non-uniform lighting conditions by using a fitting algorithm which utilizes an illuminat...
Salvador E. Ayala-Raggi, Leopoldo Altamirano Roble...
FOCS
2008
IEEE
16 years 8 days ago
Near-Optimal Sparse Recovery in the L1 Norm
Abstract— We consider the approximate sparse recovery problem, where the goal is to (approximately) recover a highdimensional vector x ∈ Rn from its lower-dimensional sketch Ax...
Piotr Indyk, Milan Ruzic
GLOBECOM
2008
IEEE
16 years 8 days ago
Distributed Base Station Cooperation via Block-Diagonalization and Dual-Decomposition
Abstract—It has been recently shown that base station cooperation may yield great capacity improvement in downlink multiple antenna cellular networks. However, the proposed solut...
Yosia Hadisusanto, Lars Thiele, Volker Jungnickel