626 search results - page 74 / 126 » Power Control for User Cooperation |
JCST
2008
13 years 10 months ago
2008
The allocation of bandwidth to unlicensed users, without significantly increasing the interference on the existing licensed users, is a challenge for Ultra Wideband (UWB) networks....
GLOBECOM
2007
IEEE
14 years 4 months ago
2007
IEEE
Abstract— We derive a lower bound on the diversitymultiplexing tradeoff for multiple antenna multiple access channels using temporal power control (PC). We quantify the substanti...
EICS
2009
ACM
14 years 4 months ago
2009
ACM
Adaptive groupware systems support changes in users’ locations, devices, roles and collaborative structure. Developing such systems is difficult due to the complex distributed ...
ISCC
2005
IEEE
14 years 3 months ago
2005
IEEE
The availability of powerful personal computers and high bandwidth home connectivity is changing the way users cooperate and exchange information on the network. Peer to peer comp...
JNW
2006
13 years 10 months ago
2006
An analytical model for calculating capacity in multi-cell UMTS networks is presented. Capacity is maximized for different spreading factors and for perfect and imperfect power con...