47 search results - page 5 / 10 » Two dimensional cross-layer optimization for packet transmis... |
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
Abstract— We propose a power and constellation-size adaptation scheme for the multicast system employing multilevel quadrature amplitude modulation (MQAM) with discrete constella...
CISS
2008
IEEE
14 years 2 months ago
2008
IEEE
—In this paper, transmission over time-selective, flat fading relay channels is studied. It is assumed that channel fading coefficients are not known a priori. Transmission tak...
DCC
2009
IEEE
13 years 5 months ago
2009
IEEE
In this paper, we introduce an analytical expression for the expected distortion of a single layer encoded video bit-stream. Based on the expected distortion model, we propose a d...
MOBICOM
2009
ACM
14 years 2 months ago
2009
ACM
The coexistence of two unlicensed links is considered, where one link interferes with the transmission of the other, over a timevarying, block-fading channel. In the absence of fa...
TWC
2008
13 years 7 months ago
2008
We consider a cooperative wireless network where the source broadcasts data to relays, some or all of which cooperatively beamform to forward the data to the destination. The netw...