Abstract:

In the light of existing spectrum allocation scheme being in a relatively broad range in cognitive radio networks, we designed quantum evolutionary algorithm to solve the spectrum allocation of wireless regional area network. An improved quantum gate operator was constructed. It calculates the quantum rotation angle adaptively to improve the ability to maintain the diversity of the population which can avoid falling into local optimum. Simulation results show that the proposed algorithm can obtain higher returns, and can meet the wireless regional area network demand for spectrum allocation.

Key words: quantum evolutionary;  , spectrum allocation; , network profits, wireless regional area network