626 search results - page 1 / 126 » Power Control for User Cooperation |
CORR
2006
Springer
13 years 4 months ago
2006
Springer
For a fading Gaussian multiple access channel with user cooperation, we obtain the optimal power allocation policies that maximize the rates achievable by block Markov superpositi...
TMC
2010
13 years 2 months ago
2010
—We consider a point-to-multipoint cognitive radio network that shares a set of channels with a primary network. Within the cognitive radio network, a base station controls and s...
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
—We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary c...
ICC
2007
IEEE
13 years 10 months ago
2007
IEEE
—Limited spectrum resources, inefficient spectrum usage and increasing wireless communication necessitates a paradigm shift from the current fixed spectrum management policy to...
TCOM
2010
13 years 2 months ago
2010
Dynamic spectrum access (DSA) is an integral part of cognitive radio technology aiming at efficient management of the available power and bandwidth resources. The present paper d...