436 search results - page 40 / 88 » Transmitting Video-on-Demand Effectively |
ICC
2007
IEEE
14 years 4 months ago
2007
IEEE
— Blind and semiblind adaptive schemes are proposed for joint maximum likelihood (ML) channel estimation and data detection for multiple-input multiple-output (MIMO) systems. The...
ICC
2007
IEEE
14 years 4 months ago
2007
IEEE
—This paper investigates time of arrival estimation via impulse radio ultra-wideband technology. A dense multipath channel is assumed and frequency-selective propagation effects ...
GLOBECOM
2006
IEEE
14 years 4 months ago
2006
IEEE
— Cooperation among base stations has demonstrated substantial capacity gain in cellular systems. The optimal transmission scheme under full base station cooperation requires all...
GLOBECOM
2006
IEEE
14 years 4 months ago
2006
IEEE
— We analyze the user capacity of downlink CDMA systems with quasi-orthogonal sequences(QOSs) considering various system parameters, such as user activity, spreading factor, the ...
GLOBECOM
2006
IEEE
14 years 4 months ago
2006
IEEE
— Medium access control (MAC) protocols for wireless packet networks usually need to be distributed for flexibility and robustness. In a distributed way, however, collision dete...