  Over the last decade, wireless networks have experienced an impressive growth
and now play a main role in many telecommunications systems. As a consequence,
scarce radio resources, such as frequencies, became congested and the need for
effective and efficient assignment methods arose. In this work, we present a
Genetic Algorithm for solving large instances of the Power, Frequency and
Modulation Assignment Problem, arising in the design of wireless networks. To
our best knowledge, this is the first Genetic Algorithm that is proposed for
such problem. Compared to previous works, our approach allows a wider
exploration of the set of power solutions, while eliminating sources of
numerical problems. The performance of the algorithm is assessed by tests over
a set of large realistic instances of a Fixed WiMAX Network.
