1. Un Enfoque Multiobjetivo para la Asignación de Canales en Sistemas Celulares.
- Author
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Carranza, Héctor E., Chávez, Luis, Fissore, María L., and Simón, Silvia B.
- Subjects
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CELL phone systems , *COMPUTER algorithms , *INFORMATION technology , *MATHEMATICAL optimization , *TELECOMMUNICATION research - Abstract
To improve the quality of service in cell systems, techniques of Dynamic Assignment Channels are used to reduce the probability of blocking calls. In this paper an algorithm of assignment channels is required to reduce the probability of blocking, extending the system capacity to add new calls. This is obtained by using an interchange of channels of current calls and reducing the restrictions of electromagnetic compatibility. According to this, the algorithm has to provide solutions of commitments between two different objectives; on the one hand reduce the amount of assignments, and on the other to do the same with the level of interference due to the flexible restrictions of electromagnetic compatibility. A heuristic focus based on the evolution paradigm is presented to solve the multi-objective optimization problem. Two evolutionary multi-objective algorithms (SPEAII y NSGA II) are compared by the use of two different metrics. The results show that the proposed methodology can be applied to different generations of mobile communication systems. [ABSTRACT FROM AUTHOR]
- Published
- 2008