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» Some Results on Orthogonal Factorizations
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VTC
2006
IEEE
142views Communications» more  VTC 2006»
15 years 3 months ago
Adaptive Bit-Interleaved Coded OFDM over Time-Varying Channels
When adapting the transmitter to the channel state information (CSI), improved transmission is possible compared to the open loop system where no CSI is provided at the transmitte...
Jin Soo Choi, Chang-Kyung Sung, Sung Hyun Moon, In...
FOCS
1998
IEEE
15 years 1 months ago
The Shortest Vector in a Lattice is Hard to Approximate to Within Some Constant
We show that approximating the shortest vector problem (in any p norm) to within any constant factor less than p 2 is hard for NP under reverse unfaithful random reductions with i...
Daniele Micciancio
MCSS
2009
Springer
15 years 4 months ago
Adaptive BICM-OFDM Systems
Link Adaptation for Orthogonal Frequency Division Multiplex (OFDM) systems is an important topic to achieve higher spectral efficiencies or better error rate performance. However, ...
Carsten Bockelmann, Dirk Wübben, Karl-Dirk Ka...
42
Voted
DM
2006
59views more  DM 2006»
14 years 9 months ago
Factors of the Gaussian coefficients
Abstract. We present some simple observations on factors of the qbinomial coefficients, the q-Catalan numbers, and the q-multinomial coefficients. Writing the Gaussian coefficient ...
William Y. C. Chen, Qing-Hu Hou
BMCBI
2010
214views more  BMCBI 2010»
14 years 9 months ago
AutoSOME: a clustering method for identifying gene expression modules without prior knowledge of cluster number
Background: Clustering the information content of large high-dimensional gene expression datasets has widespread application in "omics" biology. Unfortunately, the under...
Aaron M. Newman, James B. Cooper