83 search results - page 15 / 17 » On Collision-Tolerant Transmission with Directional Antennas |
TWC
2008
14 years 9 months ago
2008
We combine space-time coding and transmit beamforming over multiple-antenna quasi-static fading channels using resolution-constrained channel state information at the transmitter ...
GLOBECOM
2009
IEEE
15 years 1 months ago
2009
IEEE
IEEE 802.22 wireless regional area network (WRAN) is an emerging cognitive radio-based system. One of the major challenges for WRANs is how to efficiently schedule both channel sen...
PET
2004
Springer
15 years 3 months ago
2004
Springer
Electromagnetic eavesdropping of computer displays – first demonstrated to the general public by van Eck in 1985 – is not restricted to cathode-ray tubes. Modern flat-panel d...
ICC
2009
IEEE
15 years 4 months ago
2009
IEEE
—Cellular systems in general suffer from co-channel interference, when simultaneous transmissions in other cells use the same physical resources. In order to mitigate such co-cha...
ICC
2007
IEEE
15 years 4 months ago
2007
IEEE
—Peak-to-average power ratio (PAR) reduction in OFDM using antenna arrays (MIMO OFDM) is considered. In particular, generalizations of selected mapping (SLM) recently proposed in...