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GLOBECOM
2007
IEEE
14 years 2 months ago
Bursty Traffic in Energy-Constrained Opportunistic Spectrum Access
We design opportunistic spectrum access strategies for improving spectrum efficiency. In each slot, a secondary user chooses a subset of channels to sense and decides whether to ac...
Yunxia Chen, Qing Zhao, Ananthram Swami
AFRIGRAPH
2001
ACM
14 years 2 months ago
Exploiting coherence of shadow rays
We present independent method to reduce the number of shadow ray tests. It can be used with standard acceleration ray tracing algorithms. Our method is conservative and produces t...
Andrzej Lukaszewski
AISB
1995
Springer
14 years 2 months ago
The Ant Colony Metaphor for Searching Continuous Design Spaces
This paper describes a form of dynamical computational system--4he ant colony---and presents an ant colony model for continuous space optimisation problems. The ant colony metapho...
George Bilchev, Ian C. Parmee
ASAP
2008
IEEE
119views Hardware» more  ASAP 2008»
14 years 23 days ago
An FPGA architecture for CABAC decoding in manycore systems
Arithmetic coding is an efficient entropy compression method that achieves results close to the entropy limit and it is used in modern standards such as JPEG-2000 and H.264. Arith...
Roberto R. Osorio, Javier D. Bruguera
GECCO
2010
Springer
176views Optimization» more  GECCO 2010»
14 years 23 days ago
A hierarchical cooperative evolutionary algorithm
To successfully search multiple coadaptive subcomponents in a solution, we developed a novel cooperative evolutionary algorithm based on a new computational multilevel selection f...
Shelly Xiaonan Wu, Wolfgang Banzhaf