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ICASSP
2009
IEEE
14 years 3 months ago
Data hiding in hard-copy text documents robust to print, scan and photocopy operations
This paper describes a method for hiding data inside printed text documents that is resilient to print/scan and photocopying operations. Using the principle of channel coding with...
Avinash L. Varna, Shantanu Rane, Anthony Vetro
ICC
2008
IEEE
136views Communications» more  ICC 2008»
14 years 3 months ago
New Beamforming Schemes with Optimum Receive Combining for Multiuser MIMO systems
— In this paper, we present a new beamforming scheme for a downlink of multiuser multiple-input multipleoutput (MIMO) communication systems. Recently, a blockdiagonalization (BD)...
Sang-Rim Lee, Seokhwan Park, Sung Hyun Moon, Inkyu...
ICC
2007
IEEE
185views Communications» more  ICC 2007»
14 years 3 months ago
Maximal Lifetime Rate and Power Allocation for Sensor Networks with Data Distortion Constraints
— We address a lifetime maximization problem for a single-hop wireless sensor network where multiple sensors encode and communicate their measurements of a Gaussian random source...
James C. F. Li, Subhrakanti Dey, Jamie S. Evans
MSWIM
2005
ACM
14 years 2 months ago
Latency-sensitive power control for wireless ad-hoc networks
We investigate the impact of power control on latency in wireless ad-hoc networks. If transmission power is increased, interference increases, thus reducing network capacity. A no...
Mohamed R. Fouad, Sonia Fahmy, Gopal Pandurangan
GLOBECOM
2010
IEEE
13 years 6 months ago
Space-Time Shift Keying: A Unified MIMO Architecture
In this paper, we propose a novel Space-Time Shift Keying (STSK) modulation scheme for MIMO communication systems, where the concept of spatial modulation is extended to include bo...
Shinya Sugiura, Sheng Chen, Lajos Hanzo