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GLOBECOM
2007
IEEE
16 years 27 days ago
Time-Varying Channel Complex Gains Estimation and ICI Suppression in OFDM Systems
—In this paper, we present an iterative algorithm for channel complex gains estimation with inter-sub-carrierinterference (ICI) reduction in orthogonal-frequency-divisionmultiple...
Hussein Hijazi, Laurent Ros
GLOBECOM
2007
IEEE
16 years 27 days ago
Opportunistic Feedback in OFDMA Downlink
—This paper presents an opportunistic feedback (OF) protocol that reduces the amount of channel-state-information (CSI) feedback for the OFDMA downlink system. The OF protocol as...
Rajiv Agarwal, Vineet Abhishek, Rath Vannithamby, ...
ICC
2007
IEEE
16 years 27 days ago
A New MIMO Beamforming Technique Based on Rotation Transformations
Abstract— In this paper, we propose a new transmit beamforming technique for multiple-input-multiple-output (MIMO) systems to improve the link level performance. We present a met...
Heunchul Lee, Seokhwan Park, Inkyu Lee
ICMCS
2007
IEEE
194views Multimedia» more  ICMCS 2007»
16 years 27 days ago
Automatically Tuning Background Subtraction Parameters using Particle Swarm Optimization
A common trait of background subtraction algorithms is that they have learning rates, thresholds, and initial values that are hand-tuned for a scenario in order to produce the des...
Brandyn White, Mubarak Shah
ICON
2007
IEEE
16 years 27 days ago
A Cache Architecture for Counting Bloom Filters
— Within packet processing systems, lengthy memory accesses greatly reduce performance. To overcome this limitation, network processors utilize many different techniques, e.g., u...
Mahmood Ahmadi, Stephan Wong