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TWC
2008
120views more  TWC 2008»
13 years 7 months ago
Energy minimization of a QAM system with fading
In this paper, the problem of choosing constellation size and transmit power that minimizes the energy-per-goodbit in a frequency-flat, long-term static fading channel is considere...
Raghavendra S. Prabhu, Babak Daneshrad
TIP
2008
195views more  TIP 2008»
13 years 7 months ago
Image Coding Using Dual-Tree Discrete Wavelet Transform
In this paper, we explore the application of 2-D dual-tree discrete wavelet transform (DDWT), which is a directional and redundant transform, for image coding. Three methods for sp...
Jingyu Yang, Yao Wang, Wenli Xu, Qionghai Dai
PVLDB
2010
151views more  PVLDB 2010»
13 years 6 months ago
Database Compression on Graphics Processors
Query co-processing on graphics processors (GPUs) has become an effective means to improve the performance of main memory databases. However, this co-processing requires the data ...
Wenbin Fang, Bingsheng He, Qiong Luo
PVLDB
2010
117views more  PVLDB 2010»
13 years 6 months ago
Building Disclosure Risk Aware Query Optimizers for Relational Databases
Many DBMS products in the market provide built in encryption support to deal with the security concerns of the organizations. This solution is quite effective in preventing data ...
Mustafa Canim, Murat Kantarcioglu, Bijit Hore, Sha...
TIP
2010
132views more  TIP 2010»
13 years 6 months ago
Compress Compound Images in H.264/MPGE-4 AVC by Exploiting Spatial Correlation
—Compound images are a combination of text, graphics and natural image. They present strong anisotropic features, especially on the text and graphics parts. These anisotropic fea...
Cuiling Lan, Guangming Shi, Feng Wu