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DCG
1999
58views more  DCG 1999»
15 years 5 months ago
Nonexistence of Certain Spherical Designs of Odd Strengths and Cardinalities
A spherical -design on Sn-1 is a finite set such that, for all polynomials f of degree at most , the average of f over the set is equal to the average of f over the sphere Sn-1 . ...
Peter Boyvalenkov, Danyo Danev, Svetla Nikova
TIT
2002
99views more  TIT 2002»
15 years 5 months ago
Capacity scaling in MIMO Wireless systems under correlated fading
Previous studies have shown that single-user systems employing -element antenna arrays at both the transmitter and the receiver can achieve a capacity proportional to , assuming in...
Chen-Nee Chuah, David N. C. Tse, Joseph M. Kahn, R...
TIT
2002
72views more  TIT 2002»
15 years 5 months ago
Optimal tight frames and quantum measurement
Tight frames and rank-one quantum measurements are shown to be intimately related. In fact, the family of normalized tight frames for the space in which a quantum-mechanical system...
Yonina C. Eldar, G. David Forney Jr.
TIT
2002
60views more  TIT 2002»
15 years 5 months ago
A Zador-like formula for quantizers based on periodic tilings
We consider Zador's asymptotic formula for the distortion-rate function for a variable-rate vector quantizer in the high-rate case. This formula involves the differential ent...
N. J. A. Sloane, Vinay A. Vaishampayan
SIAMSC
2008
142views more  SIAMSC 2008»
15 years 4 months ago
Algebraic Multigrid Solvers for Complex-Valued Matrices
In the mathematical modeling of real-life applications, systems of equations with complex coefficients often arise. While many techniques of numerical linear algebra, e.g., Krylovs...
Scott MacLachlan, Cornelis W. Oosterlee