Algoritmo de Asignación de Canales para Redes de Comunicación Inalámbricas con Acceso Oportunista basado en Algoritmos Genéticos

Abstract

The growing demand for wireless connectivity (e.g.IEEE802.11 standard) in densely populated, leading to have a large number of wireless devices operating without coordination on the same geographic space, which could lead to high levels of interference between devices, already operating in bands shared (e.g.ISM). The result of this operation could lead to problems such as attenuation of the transmitted signal level and consequently low network performance. One possible solution to these problems could be the opportunistic use of channels licensed bands that have some sort of temporal or spatial availability. In this context, a system to decrease congestion spectrum in the ISM band, by developing a mechanism for allocating channels with opportunistic access to underutilized spectrum, using techniques known heuristics for the allocation of resources such as genetic algorithms is proposed, commonly used in complex optimization problems. To this will be considered the heterogeneity of the spectrum and prioritizing the use of ISM band, in order to reduce interference between WLANs in an urban setting with different densities of devices.