830 search results - page 93 / 166 » Approximation power of directionlets |
INFOCOM
2006
IEEE
14 years 2 months ago
2006
IEEE
Abstract— Sensors typically use wireless transmitters to communicate with each other. However, sensors may be located in a way that they cannot even form a connected network (e.g...
CORR
2008
Springer
13 years 9 months ago
2008
Springer
We consider the problem of rate allocation in a fading Gaussian multiple-access channel (MAC) with fixed transmission powers. Our goal is to maximize a general concave utility func...
IAT
2009
IEEE
14 years 3 months ago
2009
IEEE
In building practical sensor networks, it is often beneficial to use only a subset of sensors to take measurements because of computational, communication, and power limitations....
VTC
2006
IEEE
14 years 2 months ago
2006
IEEE
— In this paper we compare the following two methods of transmit precoding for the multiple antenna broadcast channel: vector perturbation applied to channel inversion (also term...
NIPS
2007
13 years 10 months ago
2007
This contribution develops a theoretical framework that takes into account the effect of approximate optimization on learning algorithms. The analysis shows distinct tradeoffs for...