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VTC
2010
IEEE
158views Communications» more  VTC 2010»
15 years 5 months ago
Joint Channel Impulse Response and Noise-Variance Estimation for OFDM/SDMA Systems Based on Expectation Maximization
Abstract—A joint channel impulse response (CIR) and noisevariance estimation scheme is proposed for multi-user MultipleInput-Multiple-Output (MIMO) Orthogonal Frequency-Division ...
Jiankang Zhang, Xiaomin Mu, Lajos Hanzo
SICHERHEIT
2010
15 years 4 months ago
Towards Optimal Sensor Placement Strategies for Early Warning Systems
: A network early warning system consists of several distributed sensors to detect malicious network activity. The effectiveness of such early warning systems critically depends on...
Jan Göbel, Philipp Trinius
HCI
2009
15 years 4 months ago
DocEmoX: A System for the Typography-Derived Emotional Annotation of Documents
This work presents the design and implementation of the DocEmoX system for the automated typography-derived emotional extraction and annotation of printed and electronic documents....
Georgios Kouroupetroglou, Dimitrios Tsonos, Eugeni...
ICC
2009
IEEE
130views Communications» more  ICC 2009»
15 years 4 months ago
Link Adaptation in Linearly Precoded Closed-Loop MIMO-OFDM Systems with Linear Receivers
Abstract--Upcoming multi antenna systems such as 3GPPLTE employ code book based multi-mode precoding in order to adapt to a wide range of channel conditions. Link adaptation, which...
Eckhard Ohlmer, Gerhard Fettweis
CORR
2010
Springer
118views Education» more  CORR 2010»
15 years 3 months ago
Estimating Probabilities in Recommendation Systems
Modeling ranked data is an essential component in a number of important applications including recommendation systems and websearch. In many cases, judges omit preference among un...
Mingxuan Sun, Guy Lebanon, Paul Kidwell