478 search results - page 82 / 96 » Convexity minimizes pseudo-triangulations |
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
— Energy-ef ciency is one of the major concerns in wireless sensor networks since it impacts the network lifetime. In this paper, we investigate the relationship between sensor n...
VTC
2007
IEEE
14 years 2 months ago
2007
IEEE
—In this paper, we propose a low-complexity scheme for minimizing energy consumption in a clustered multirate CDMA sensor network with multiple receive antennas by jointly contro...
GLOBECOM
2006
IEEE
14 years 2 months ago
2006
IEEE
Abstract— For multi-user orthogonal frequency division multiplexing (OFDM) systems, efficient optimal rate and power allocation algorithms are presented via geometric programmin...
INFOCOM
2006
IEEE
14 years 2 months ago
2006
IEEE
Abstract— Adaptive rate/power control schemes have great potential to increase the throughput of wireless CDMA networks. In this paper, we investigate the additional gains achiev...
ICIP
2005
IEEE
14 years 1 months ago
2005
IEEE
—In this paper we introduce a new 3D automatic registration method based on Gaussian fields and energy minimization. The method defines a simple ∞ C energy function, which is c...