Abstract

The localisation problem arises from the need of the elements of a swarm of robots, or of a wireless sensor network WSN, to determine its position without the use of external references, such as the global positioning system GPS, for example. In this problem, the location is based on calculations that use distance measurements to anchor nodes that have known positions. In the search for efficient algorithms to calculate the location, some algorithms inspired by nature, such as genetic algorithm GA and particle swarm optimisation PSO algorithm, have been used. Accordingly, in order to obtain better solutions to the localisation problem, this paper presents the results obtained with the backtracking search optimisation algorithm BSA and compares them with those obtained with the GA.

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