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GLOBECOM
2009
IEEE
14 years 3 months ago
Slepian-Based Serial Estimation of Time-Frequency Variant Channels for MIMO-OFDM Systems
Abstract—This paper proposes a low-complexity twodimensional channel estimator for MIMO-OFDM systems derived from a time-frequency variant channel estimator previously proposed. ...
Pierluigi Salvo Rossi, Ralf R. Muller, Ove Edfors
WCNC
2008
IEEE
14 years 2 months ago
Distributed Space-Frequency Coding over Amplify-and-Forward Relay Channels
Abstract— In this paper, the design of distributed spacefrequency codes (DSFCs) for wireless relay networks employing the amplify-and-forward (AAF) protocol is considered. The te...
Karim G. Seddik, K. J. Ray Liu
GECCO
2006
Springer
158views Optimization» more  GECCO 2006»
14 years 5 days ago
The effects of interaction frequency on the optimization performance of cooperative coevolution
Cooperative coevolution is often used to solve difficult optimization problems by means of problem decomposition. Its performance on this task is influenced by many design decisio...
Elena Popovici, Kenneth A. De Jong
DAC
2008
ACM
14 years 9 months ago
Characterizing chip-multiprocessor variability-tolerance
Spatially-correlated intra-die process variations result in significant core-to-core frequency variations in chip-multiprocessors. An analytical model for frequency island chip-mu...
Sebastian Herbert, Diana Marculescu
ICIP
2007
IEEE
14 years 11 days ago
Space-Frequency Quantization using Directionlets
In our previous work [1], we proposed a construction of critically sampled perfect reconstruction transforms with directional vanishing moments (DVMs) imposed in the corresponding...
Vladan Velisavljevic, Baltasar Beferull-Lozano, Ma...