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MOBICOM
2006
ACM
14 years 2 months ago
A coordinate-based approach for exploiting temporal-spatial diversity in wireless mesh networks
In this paper, we consider the problem of mitigating interference and improving network capacity in wireless mesh networks from the angle of temporal-spatial diversity. In a nutsh...
Hyuk Lim, Chaegwon Lim, Jennifer C. Hou
JIPS
2010
273views more  JIPS 2010»
13 years 3 months ago
Hiding Secret Data in an Image Using Codeword Imitation
This paper proposes a novel reversible data hiding scheme based on a Vector Quantization (VQ) codebook. The proposed scheme uses the principle component analysis (PCA) algorithm to...
Zhi-Hui Wang, Chin-Chen Chang, Pei-Yu Tsai
ICC
2007
IEEE
103views Communications» more  ICC 2007»
14 years 2 months ago
On the Sum-Rate of Opportunistic Beamforming Schemes with Multiple Antennas at the Receiver
Abstract— The capacity region of Gaussian Multi-InputMultiple-Output (MIMO) broadcast channels has been shown to be achieved by dirty paper coding (DPC). However, due to the high...
Renato G. Bosisio, Umberto Spagnolini
TIT
2008
94views more  TIT 2008»
13 years 8 months ago
Why Do Block Length and Delay Behave Differently if Feedback Is Present?
Abstract--For output-symmetric discrete memoryless channels (DMCs) at even moderately high rates, fixed-block-length communication systems show no improvements in their error expon...
Anant Sahai
GLOBECOM
2008
IEEE
13 years 9 months ago
User Selection for Multiple-Antenna Broadcast Channel with Zero-Forcing Beamforming
Abstract—This paper investigates the zero-forcing (ZF) beamforming transmit strategy in the multiple-antenna multiuser downlink systems. We consider the case of mobile users equi...
Saeed Kaviani, Witold A. Krzymien