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DCC
2007
IEEE
16 years 6 months ago
Transmission Over Slowly Fading Channels Using Unreliable Quantized Feedback
We study the problem of maximizing the expected rate over a slowly fading channel with quantized channel state information at the transmitter (CSIT). This problem has been recentl...
Siavash Ekbatani, Farzad Etemadi, Hamid Jafarkhani
SCALESPACE
2009
Springer
16 years 1 months ago
Pre-image as Karcher Mean Using Diffusion Maps: Application to Shape and Image Denoising
In the context of shape and image modeling by manifold learning, we focus on the problem of denoising. A set of shapes or images being known through given samples, we capture its s...
Nicolas Thorstensen, Florent Ségonne, Renau...
CGF
2008
100views more  CGF 2008»
15 years 6 months ago
Real-Time Translucent Rendering Using GPU-based Texture Space Importance Sampling
We present a novel approach for real-time rendering of translucent surfaces. The computation of subsurface scattering is performed by first converting the integration over the 3D ...
Chih-Wen Chang, Wen-Chieh Lin, Tan-Chi Ho, Tsung-S...
CORR
2008
Springer
129views Education» more  CORR 2008»
15 years 6 months ago
Combining Beamforming and Space-Time Coding Using Noisy Quantized Feedback
The goal of combining beamforming and space-time coding is to obtain full-diversity order and to provide additional received power (array gain) compared to conventional space-time...
Siavash Ekbatani, Hamid Jafarkhani
TII
2011
206views Education» more  TII 2011»
15 years 1 months ago
Timing-Failure Risk Assessment of UML Design Using Time Petri Net Bound Techniques
Abstract—Software systems that do not meet their timing constraints can cause risks. In this work, we propose a comprehensive method for assessing the risk of timing failure by e...
Simona Bernardi, Javier Campos, José Merseg...