181 search results - page 32 / 37 » Downlink Interference Alignment |
ETT
2000
13 years 7 months ago
2000
We analyze the effects of Doppler spread in mobile channels on Orthogonal Frequency Division Multiplex (OFDM) systems. This is important, since channel variations during one OFDM s...
TMC
2010
13 years 6 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...
PIMRC
2010
IEEE
13 years 5 months ago
2010
IEEE
We consider the problem of multi-cell downlink beamforming with N cells and K terminals per cell. Cooperation among base stations (BSs) has been found to increase the system throug...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) n...
CORR
2007
Springer
13 years 7 months ago
2007
Springer
Abstract— We study the degrees of freedom characterization of wireless X networks, i.e. networks of M distributed single antenna transmitters and N distributed single antenna rec...