691 search results - page 71 / 139 » Communicating Under Channel Uncertainty |
TWC
2008
13 years 8 months ago
2008
In the first part of the paper, the capacity of a general multiuser code division multiple access (CDMA) jamming channel was analyzed for noncooperative and cooperative users in up...
VTC
2006
IEEE
14 years 2 months ago
2006
IEEE
—Transmitter-based signal pre-processing is investigated for the two-dimensional (2-D) OFDM-CDMA (orthogonal frequency division multiplexing, code division multiple access) forwa...
ICC
2008
IEEE
14 years 3 months ago
2008
IEEE
— 1 In this paper, training-based transmissions over a priori unknown Rayleigh block fading channels are considered. The input signals are assumed to be subject to peak power con...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— Multicarrier transmission is an established technique for radio transmission systems and it can be considered as a promising approach for next generation wireless syste...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— The use of directional antennas in mobile ad hoc networks has shown to offer large potential throughput gains relative to omnidirectional antennas. When used in ad hoc networks...