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» Relaxing the Value Restriction
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CORR
2008
Springer
114views Education» more  CORR 2008»
13 years 10 months ago
The Equivalence of Semidefinite Relaxation MIMO Detectors for Higher-Order QAM
In multi-input multi-output (MIMO) detection, semidefinite relaxation (SDR) has been shown to be an efficient high-performance approach. For BPSK and QPSK, it has been found that S...
Wing-Kin Ma, Chao-Cheng Su, Joakim Jalden, Tsung-H...
TSP
2008
115views more  TSP 2008»
13 years 10 months ago
Approximation Bounds for Semidefinite Relaxation of Max-Min-Fair Multicast Transmit Beamforming Problem
Consider a downlink multicast scenario where a base station equipped with multiple antennas wishes to simultaneously broadcast a number of signals to some given groups of users ove...
Tsung-Hui Chang, Zhi-Quan Luo, Chong-Yung Chi
PODC
2005
ACM
14 years 3 months ago
Simultaneous broadcast revisited
Simultaneous Broadcast protocols allow different parties to broadcast values in parallel while guaranteeing mutual independence of the broadcast values. In this work, we study va...
Alejandro Hevia, Daniele Micciancio
FMSD
2008
64views more  FMSD 2008»
13 years 10 months ago
Robust safety of timed automata
Timed automata are governed by an idealized semantics that assumes a perfectly precise behavior of the clocks. The traditional semantics is not robust because the slightest perturb...
Martin De Wulf, Laurent Doyen, Nicolas Markey, Jea...
JSCIC
2011
113views more  JSCIC 2011»
13 years 5 months ago
An Asymptotic Preserving Scheme for the ES-BGK Model of the Boltzmann Equation
In this paper, we study a time discrete scheme for the initial value problem of the ES-BGK kinetic equation. Numerically solving these equations are challenging due to the nonlinea...
Francis Filbet, Shi Jin