Sciweavers

235 search results - page 27 / 47
» Rate and Power Allocation in Fading Multiple Access Channels
Sort
View
TIT
2010
110views Education» more  TIT 2010»
13 years 2 months ago
Error rates of the maximum-likelihood detector for arbitrary constellations: convex/concave behavior and applications
Motivated by a recent surge of interest in convex optimization techniques, convexity/concavity properties of error rates of the maximum likelihood detector operating in the AWGN ch...
Sergey Loyka, Victoria Kostina, François Ga...
ICASSP
2011
IEEE
12 years 11 months ago
Stochastic optimization based on the Laplace transform order with applications to precoder designs
Stochastic optimization arising from precoding in a multi-antenna fading channel with channel mean feedback to maximize data rates is important but challenging. The use of relayin...
Minhua Ding, Keith Q. T. Zhang
TSP
2010
13 years 2 months ago
On the optimal performance in asymmetric gaussian wireless sensor networks with fading
We study the estimation of a Gaussian source by a Gaussian wireless sensor network (WSN) where L distributed sensors transmit noisy observations of the source through a fading Gau...
Hamid Behroozi, Fady Alajaji, Tamás Linder
ICC
2011
IEEE
225views Communications» more  ICC 2011»
12 years 7 months ago
Throughput-Optimal Half-Duplex Cooperative Scheme with Partial Decode-Forward Relaying
Abstract—We study a cooperative communication system consisting of two users in half duplex mode communicating with one destination over additive white Gaussian noise (AWGN). Coo...
Ahmad Abu Al Haija, Mai Vu
JCST
2008
140views more  JCST 2008»
13 years 7 months ago
ROPAS: Cross-Layer Cognitive Architecture for Mobile UWB Networks
The allocation of bandwidth to unlicensed users, without significantly increasing the interference on the existing licensed users, is a challenge for Ultra Wideband (UWB) networks....
Chittabrata Ghosh, Bin Xie, Dharma P. Agrawal