336 search results - page 23 / 68 » Permutation Problems and Channelling Constraints |
WIMOB
2008
IEEE
14 years 1 months ago
2008
IEEE
—In this paper, we propose two robust precoder designs for multiple-input multiple-output (MIMO) broadcast channels with imperfect channel state information (CSI). First, we cons...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
A weighted sum-rate maximization problem is considered for an access point (AP) allocating resources to wireless cognitive radios (CRs) communicating using orthogonal frequency-di...
CVPR
2009
IEEE
15 years 2 months ago
2009
IEEE
This paper addresses the problem of establishing correspondences
between two sets of visual features using
higher-order constraints instead of the unary or pairwise
ones used in...
TIT
2008
13 years 7 months ago
2008
Abstract--In this paper, we study moments of soft bits of binary-input symmetric-output channels and solve some extremal problems of the moments. We use these results to solve the ...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
We study the security of communication between a single transmitter and multiple receivers in a broadcast channel in the presence of an eavesdropper. Characterizing the secrecy ca...