Sciweavers

71 search results - page 1 / 15
» On Optimal Watermarking Schemes in Uncertain Gaussian Channe...
Sort
View
ICIP
2007
IEEE
13 years 9 months ago
On Optimal Watermarking Schemes in Uncertain Gaussian Channels
This paper describes the analytical derivation of a new watermarking algorithm satisfying optimality properties when the distortion of the watermarked signal is caused by a Gaussi...
Alvaro A. Cárdenas, George V. Moustakides, ...
ICC
2007
IEEE
210views Communications» more  ICC 2007»
13 years 7 months ago
Dirty-Paper Coding without Channel Information at the Transmitter and Imperfect Estimation at the Receiver
—In this paper, we examine the effects of imperfect channel estimation at the receiver and no channel knowledge at the transmitter on the capacity of the fading Costa’s channel...
Pablo Piantanida, Pierre Duhamel
ICC
2007
IEEE
162views Communications» more  ICC 2007»
13 years 11 months ago
An Asymptotically Sum-Rate Optimal Precoding Scheme for MIMO Gaussian Broadcast Channel
—In this paper, we study the downlink precoding schemes for MIMO Gaussian broadcast channels (MIMO GBC). A novel low-complexity zero-forcing dirty-paper-coding (DPC) scheme, name...
Hao Li, Changqing Xu, Pingzhi Fan
GLOBECOM
2008
IEEE
13 years 5 months ago
Energy Efficient Estimation of Gaussian Sources over Inhomogeneous Gaussian MAC Channels
In this paper, we first provide a joint source and channel coding (JSCC) approach in estimating Gaussian sources over Gaussian MAC channels, as well as its sufficient and necessary...
Shuangqing Wei, Rajgopal Kannan, S. Sitharama Iyen...
GLOBECOM
2006
IEEE
13 years 11 months ago
Optimality of FDMA in Gaussian Multiple-Access Channels with Non-zero SNR Margin and Gap
— This paper investigates the effect of non-zero SNR margin and coding gap on the maximum sum rate and achievable rate region of the Gaussian Multiple-Access Channel (MAC). Frequ...
Sumanth Jagannathan, John M. Cioffi