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JSAC
2008
151views more  JSAC 2008»
14 years 11 months ago
Joint Beamforming and Power Allocation for Multiple Access Channels in Cognitive Radio Networks
A cognitive radio (CR) network is often described as a secondary network operating in a frequency band originally licensed/allocated to a primary network consisting of one or multi...
Lan Zhang, Ying-Chang Liang, Yan Xin
CORR
2011
Springer
210views Education» more  CORR 2011»
14 years 3 months ago
Transmission with Energy Harvesting Nodes in Fading Wireless Channels: Optimal Policies
Wireless systems comprised of rechargeable nodes have a significantly prolonged lifetime and are sustainable. A distinct characteristic of these systems is the fact that the node...
Omur Ozel, Kaya Tutuncuoglu, Jing Yang, Sennur Ulu...
CHI
2006
ACM
16 years 7 days ago
Listening to your inner voices: investigating means for voice notifications
Our research investigates notification qualities of different types of voices, moving toward interfaces that support optimal allocation of attention to maximize system utility. We...
Saurabh Bhatia, D. Scott McCrickard
ICDAR
2009
IEEE
15 years 6 months ago
A New Approach for Skew Correction of Documents Based on Particle Swarm Optimization
This paper presents a novel approach for skew correction of documents. Skew correction is modelled as an optimization problem, and for the first time, Particle Swarm Optimization...
Javad Sadri, Mohamed Cheriet
ICMCS
2006
IEEE
82views Multimedia» more  ICMCS 2006»
15 years 5 months ago
Block-based Fast Compression for Compound Images
—This paper presents a novel block-based fast compression (BFC) algorithm for compound images that contain graphics, text and natural images. The images are divided to blocks, wh...
Wenpeng Ding, Dong Liu, Yuwen He, Feng Wu