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VTC
2008
IEEE
120views Communications» more  VTC 2008»
14 years 5 months ago
A Comprehensive Performance Comparison of OFDM/TDM Using MMSE-FDE and Conventional OFDM
—Orthogonal frequency division multiplexing (OFDM) is currently under intense research for broadband wireless transmission due to its robustness against multipath fading. However...
Haris Gacanin, Fumiyuki Adachi
ICMCS
2006
IEEE
129views Multimedia» more  ICMCS 2006»
14 years 5 months ago
Directional Discrete Cosine Transforms for Image Coding
- Nearly all block-based transform schemes for image and video coding developed so far choose the 2-D discrete cosine transform (DCT) of a square block shape. With almost no except...
Bing Zeng, Jingjing Fu
EUC
2005
Springer
14 years 4 months ago
Human Position/Height Detection Using Analog Type Pyroelectric Sensors
Abstract. Pyroelectric sensors can detect changes of infrared rays. Usually, typical pyroelectric sensors are the digital output type, used for lighting switches and security syste...
Shinya Okuda, Shigeo Kaneda, Hirohide Haga
COLT
1997
Springer
14 years 3 months ago
Estimation of Time-Varying Parameters in Statistical Models: An Optimization Approach
Abstract. We propose a convex optimization approach to solving the nonparametric regression estimation problem when the underlying regression function is Lipschitz continuous. This...
Dimitris Bertsimas, David Gamarnik, John N. Tsitsi...
COMPGEOM
2008
ACM
14 years 21 days ago
The complexity of the outer face in arrangements of random segments
We investigate the complexity of the outer face in arrangements of line segments of a fixed length in the plane, drawn uniformly at random within a square. We derive upper bounds ...
Noga Alon, Dan Halperin, Oren Nechushtan, Micha Sh...