Genetic algorithm parameter optimization: applied to sensor coverage

Ferat Sahin; Giuseppe Abbate

doi:10.1117/12.542404

10 August 2004 Genetic algorithm parameter optimization: applied to sensor coverage

Ferat Sahin, Giuseppe Abbate

Proceedings Volume 5440, Digital Wireless Communications VI; (2004) https://doi.org/10.1117/12.542404
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

Genetic Algorithms are powerful tools, which when set upon a solution space will search for the optimal answer. These algorithms though have some associated problems, which are inherent to the method such as pre-mature convergence and lack of population diversity. These problems can be controlled with changes to certain parameters such as crossover, selection, and mutation. This paper attempts to tackle these problems in GA by having another GA controlling these parameters. The values for crossover parameter are: one point, two point, and uniform. The values for selection parameters are: best, worst, roulette wheel, inside 50%, outside 50%. The values for the mutation parameter are: random and swap. The system will include a control GA whose population will consist of different parameters settings. While this GA is attempting to find the best parameters it will be advancing into the search space of the problem and refining the population. As the population changes due to the search so will the optimal parameters. For every control GA generation each of the individuals in the population will be tested for fitness by being run through the problem GA with the assigned parameters. During these runs the population used in the next control generation is compiled. Thus, both the issue of finding the best parameters and the solution to the problem are attacked at the same time. The goal is to optimize the sensor coverage in a square field. The test case used was a 30 by 30 unit field with 100 sensor nodes. Each sensor node had a coverage area of 3 by 3 units. The algorithm attempts to optimize the sensor coverage in the field by moving the nodes. The results show that the control GA will provide better results when compared to a system with no parameter changes.

Citation Download Citation

Ferat Sahin and Giuseppe Abbate "Genetic algorithm parameter optimization: applied to sensor coverage", Proc. SPIE 5440, Digital Wireless Communications VI, (10 August 2004); https://doi.org/10.1117/12.542404

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KEYWORDS

Sensors

Genetic algorithms

Robots

Sensor networks

Optimization (mathematics)

Control systems

Fuzzy logic

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