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GLOBECOM
2006
IEEE
16 years 20 days ago
Non-Linear Precoding for OFDM Systems in Spatially-Correlated Frequency-Selective Fading MIMO Channels
— This paper presents non-linear precoding design in closed-loop multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) over spatiallycorrelated,...
Yu Fu, Witold A. Krzymien, Chintha Tellambura
HSNMC
2004
Springer
126views Multimedia» more  HSNMC 2004»
16 years 9 hour ago
Hybrid Unicast and Multicast Flow Control: A Linear Optimization Approach
— In this paper, we present a solution to the general problem of flow control for both unicast and multicast IP networks. We formulate a convex optimization problem that can be ...
Homayoun Yousefi'zadeh, Fatemeh Fazel, Hamid Jafar...
WADS
2001
Springer
86views Algorithms» more  WADS 2001»
15 years 11 months ago
Practical Approximation Algorithms for Separable Packing Linear Programs
Abstract. We describe fully polynomial time approximation schemes for generalized multicommodity flow problems arising in VLSI applications such as Global Routing via Buffer Block...
Feodor F. Dragan, Andrew B. Kahng, Ion I. Mandoiu,...
SIGGRAPH
1996
ACM
15 years 10 months ago
Linear-Time Dynamics Using Lagrange Multipliers
Current linear-time simulation methods for articulated figures are based exclusively on reduced-coordinate formulations. This paper describes a general, non-iterative linear-time ...
David Baraff
FOCS
1992
IEEE
15 years 10 months ago
Maximizing Non-Linear Concave Functions in Fixed Dimension
Consider a convex set P in IRd and a piecewise polynomial concave function F: P IR. Let A be an algorithm that given a point x IRd computes F(x) if x P, or returns a concave po...
Sivan Toledo