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» Simple Local Models for Complex Dynamical Systems
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TWC
2008
238views more  TWC 2008»
15 years 4 months ago
Downlink resource allocation in multi-carrier systems: frequency-selective vs. equal power allocation
In this paper, a dynamic subcarrier and power allocation problem is considered in the context of asymptotic utility maximization in multi-carrier systems. Using the gradient-based...
Hyang-Won Lee, Song Chong
AICOM
2007
119views more  AICOM 2007»
15 years 4 months ago
Using exogenous quantities in qualitative models about environmental sustainability
Representing the impact of external factors on the behaviour of a system is a challenge for modellers, particularly when these factors are dynamic and may change during the simulat...
Bert Bredeweg, Paulo Salles, Tim Nuttle
ISIPTA
2003
IEEE
140views Mathematics» more  ISIPTA 2003»
15 years 9 months ago
A Second-Order Uncertainty Model of Independent Random Variables: An Example of the Stress-Strength Reliability
A second-order hierarchical uncertainty model of a system of independent random variables is studied in the paper. It is shown that the complex nonlinear optimization problem for ...
Lev V. Utkin
TCS
2008
15 years 4 months ago
GemCell: A generic platform for modeling multi-cellular biological systems
The mass and complexity of biological information requires computer-aided simulation and analysis to help scientists achieve understanding and guide experimentation. Although livi...
Hila Amir-Kroll, Avital Sadot, Irun R. Cohen, Davi...
ECAL
2003
Springer
15 years 9 months ago
Multi-agent Model of Biological Swarming
An agent-based approach is used to explain the formation of vortex swarms in biological systems. The dynamics of the multiagent system is described by 3N coupled equations, modeli...
Robert Mach, Frank Schweitzer